Naval History and Heritage Command

Navy Filing Manual

Fourth Edition

1941

UNITED STATES
GOVERNMENT PRINTING OFFICE
WASHINGTON · 1941

NAVY FILING MANUAL
(FOURTH EDITION)

August 27, 1941.

1. The Secretary of the Navy, on July 5, 1923, directed that the Navy Filing Manual as compiled by the Board appointed for the purpose be adopted for use and placed in effect throughout the entire Naval Service with the exception of the United States Marine Corps. The original edition of the Navy Filing Manual was followed by the issuance to the naval service in 1931 of the second edition, and in 1939 of the third edition of the manual.

2. This fourth edition of the Navy Filing Manual, in which are incorporated additions and changes made since the issuance of the third edition in 1939, supersedes all previous editions of the manual and shall be placed in effect in the Naval Service upon receipt. The fourth edition of the Navy Filing Manual is issued in loose-leaf form to provide a more ready and convenient means for inserting subsequent additions and changes therein or for deleting obsolete matter therefrom, and to obviate the necessity for frequently issuing completely revised editions of the manual.

3. The Navy Filing Manual shall be regarded as a manual issued by the Office of the Secretary, in accordance with Article 74 (1) (h), U.S. Navy Regulations, 1920, and changes therein shall be accomplished in accordance with Article 74 (2).

4. The provisions of the Navy Filing Manual shall be carried out under the direction of the Chief Clerk of the Navy Department, and to assist him in carrying out these provisions there shall be a Navy Filing Manual Permanent Committee composed of civil employees thoroughly experienced in and familiar with the requirements of record and file work, one of whom shall be designated as Senior Member.

5. The Office of the Secretary and the Bureau of Ships shall each nominate not more than two civil employees, and the Office of the Chief of Naval Operations and the Bureaus of Navigation, Ordnance, Aeronautics, Yards and Docks, Supplies and Accounts, and Medicine and Surgery, shall each nominate not more than one civil employee, to serve as members of the Navy Filing Manual Permanent Committee upon their appointment as such by the Secretary of the Navy.

Frank Knox,
Secretary of the Navy.

--iii--

GENERAL INSTRUCTIONS

Introduction

The first edition of the United States Navy Filing Manual was approved by the Secretary of the Navy July 5, 1923, and ordered put into use by all naval activities.

This fourth edition of the Navy Filing Manual has been put in loose leaf form so as to permit periodic replacement of obsolete pages without reprinting the entire book. In the future the Service will be notified by supplement of additions or corrections to be made in the Manual. As the blank spaces at the foot of each page are utilized that page will be reprinted and furnished as soon as possible, but in no case will these pages be reprinted until all spaces are used. As no further editions are contemplated it is essential that you maintain your Manual currently.

The many notes appearing under the subheadings in the F, N, and S groups have been to a large extent eliminated and appear as general notes in the preface to the F and N groups.

Following the general instructions will be found the complete listing of various groups and classifications under which the subject and name title groups are outlined. The careful perusal of these will add greatly to a proper understanding of the contents of the Manual. Study of the 7 "Subject Groups" and the 24 "Name Title Groups" listed in the index of classifications should give sufficient background when coupled with the following "Rules" to furnish a working knowledge of the Filing Manual. In the use of the index the symbols appearing therein should be used as a guide to the group and classifications under which the subject appears and should be used in conjunction therewith. It is specifically requested, however, that any questions arising on the use of the Manual be referred to the Office of the Secretary, Navy Department, Washington, D.C.

FILE NUMBERS - RULES FOR APPLICATION

File numbers are formed for the various classifications of the filing system by -

1. A subject number: A5.

2. A name title number: NC.

3. A subject number and a subdivision thereunder: A5-7.

4. A name title number and a subdivision thereunder: NC2.

5. Two subject numbers: A1-4/L1-1.

6. Two name titles: NY3/LL.

7. A name title and a subject number: BB55/S8.

8. A subject number and a name title number: L11-3/NY3

9. A third group may be added after a/where size of file warrants further subdivision. While the use of more than two groups is permissible it is recommended that file numbers be confined to two groups.

10. Personnel correspondence. (See notes in LL, MM, OO groups.)

SUGGESTED RULES FOR APPLICATION OF FILE NUMBERS

Rule 1. - A "slant" (/) shall be used to separate the individual standard file numbers which are used to make up the combined number. Example: BB55/S82-1.

Rule 2. - Arbitrary symbols used by the writer for his own convenience solely and which mean nothing to the receiver shall invariably be inclosed in parentheses. Arbitrary symbols must follow after the combined standard file number except those used for arbitrary sub-

--v--

numbers which may follow any one of the standard file numbers used in the combination. sub-Example: BB55/S82-1(4).

Rule 3. - When a file number (see art. 2043 (12), U.S. Navy Regulations) is used as a reference, the whole number shall be quoted.

Rule 4. - The file numbers for correspondence regarding a particular vessel (or class of vessels) may be made up of the same title file number of the vessel (or class) and the subject title file number. Example: Subject: U.S.S. North Carolina's boats, file No, BBS5/S82.

Rule 5. - The file numbers for correspondence regarding a particular shore station (or class of shore stations) may be made up of the name title file number of the shore station (or class) and one or more subject title file numbers. Example: Subject: Norfolk Navy Yard, repairs to floating crane, file No. NY5/N31-15.

Rule 6. - File numbers for correspondence on various materials (fabricated or not fabricated) that has to do with tests, specifications, procurement, etc., and not with installation or repairs and alterations after installation, are formed by adding the leaflet specification number or class number to JJ. (See JJ Classification, Material.)

Rule 7. - The file number of correspondence regarding geographical locations may include the file number representing the title "Geographic location" (QG) followed by the name of the place spelled out. Special provisions have been made for foreign countries, states, grand land, and water divisions. The Hydrographic Office, Washington, D.C., is exempt from this rule, Example: Subject: Typhoon, Gulf of Aden; file No. H4-9/QG, Gulf of Aden.

Rule 8. - Arrangement of file numbers, The file number for the standard title U.S.S. North Carolina is BB55; similarly, S82 represents "boats." By combining these two in any sequence the writer indicates that the subject of the letter is the "U.S.S. North Carolina's boats," which should be sufficiently definite and descriptive to permit locating the letter, if later referred to by file number only, in any Navy file irrespective of its file-arrangement plan.

There are two possible combinations of the two standard titles mentioned above. The sequence of their corresponding symbols making up the file number is immaterial, as the two titles arranged in either order give a definite and positive indication of the subject of the letter. The sequence actually selected would depend upon the writer's file arrangement, i. e., the manner in which its division, subdivisions (and possible further subdivisions) are arranged.

WRITER'S FILE ARRANGEMENT

SERIAL NUMBERS

Serial numbers should not be enclosed in parentheses but when used, they should be placed on the line immediately below the file number and preceded by the word "serial."

Example: "BB55/S82  
Serial 1234"

The use of the serial numbers only in referring to previous correspondence gives rise to much difficulty in locating this correspondence. It is strongly recommended in such instances that the subject and/or file number of the communication be given, unless for reasons of security it is inadvisable to reveal these facts.

COOPERATION

A close cooperation of the administrative and technical forces with the filing forces saves loss of time to both. The holding of papers on desks, insufficient information in requests for files, the retention of file jackets beyond a reasonable time, all tends to block the smooth working of the files and prevents the current posting of correspondence on these

--vi--

cases, thus slowing up the efficient handling of correspondence. If a piece of correspondence is erroneously classified, the technical or administrative officer receiving it should return it to the file section for correction.

It is especially important that mail and file sections impress upon writers of official outgoing letters, the necessity of placing file numbers on all copies and indicate the bureau or office preparing same before sending them to a file room for recording.

SUBJECTS - CLASSIFICATION

The writer of a letter is in the best position to know the salient points thereof, and should be able to place a comprehensive "subject" at the head of a letter. If the subject is misleading or too brief it frequently results in wrong classification. In a very large percentage of official correspondence, the closing paragraph sums up what action is wanted and combined with an intelligent subject gives a good classification.

ADMINISTRATIVE INSPECTIONS

When administrative inspections are held it is recommended that the inspection officer check the Filing Manuals in possession of the unit inspected to see that all changes as issued by the Navy Department have been made therein.

PRECEDENTS

A common failing of filing forces is to lose sight of the general significance of correspondence, tying it up with a specific case. Care should be taken that correspondence that has a precedential or general application be so classified, or a copy be so classified, or a cross index made.

BOLD FACE TYPE

In the alphabetical section bold face type is used only to designate names of vessels.

--vii--

SUBJECT AND NAME TITLE GROUPS

SUBJECT GROUPS.

A Administration.

F Aircraft material.

H Hydrography, meteorology, navigation and astronomy.

L Logistics.

N Shore establishments materials.

P Personnel.

S Ships material.

NAME TITLE GROUPS.

AB-AZ Auxiliary ships.

BB Battleships.

CA-CL Cruisers.

CM Mine layers.

CV Aircraft carriers.

DD-DM Destroyers and light mine layers.

DMS Mine sweepers.

EA-EZ U.S. Government Executive Departments and Foreign Governments.

FA-FY Fleets.

GA-HZ Government establishments, independent, etc.

IX Unclassified vessels, naval.

JC-JS Materials.

KA-KW Marine corps organizations.

LA-LV Civilian personnel.

MA-MZ Enlisted personnel.

NA-NZ Shore establishments.

OA-OZ Officer personnel.

PC-PYc Patrol vessels.

QA-QZ Miscellaneous name titles.

SM Mine laying submarines.

SS Submarines.

VB-VT Heavier-than-air aircraft.

YA-YY District Craft.

ZK-ZZ Lighter-than-air aircraft.

Index.

--viii--

A1 Plans, projects, and policies.

A2 Executive action.

A3 Organization and management.

A4 Operations of vessels or aircraft.

A5 Exercises, practices, and competitions.

A6 Communications.

A7 Publicity and censorship.

A8 Intelligence.

A9 Reports and statistics.

A10 Publications.

A11 Researches and investigations.

A12 Historical matters.

A13 Inventions, patents, and beneficial suggestions.

A14 Foreign affairs, doctrines of state, foreign policies.

A15 Honors and ceremonies.

A16 War, preparation for; conduct of.

A17 Law and justice.

A18 Legislation and congressional action.

A19 Conferences, congresses, and conventions (other than political).

A20 Unclassifiable communications.

A21 Aviation.

--ix--

A1 PLANS, PROJECTS, POLICIES.

A1-1 Developments.

Plans (for plans, drawings, see L2 and S1). Projects.

A1-2 Government policies.

A1-3 Building programs.

To specify a particular project, policy, etc., combine the above with appropriate name or subject title and file number.

A1-4 Public Works.

A2 EXECUTIVE ACTION.

(For correspondence in regard to, changes in, or the interpretation, issuance, promulgation, revision, or revocation of)

A2-1 Regulations, navy.

Articles for the government of the Navy (regulations).
Changes.
Rules of the road.

A2-2 Manuals and administrative pamphlets.

A2-3 Uniform regulations, Navy and Marine Corps.

A2-4 Naval militia regulations.
Naval reserve force regulations.

A2-5 Shore establishments and fleet regulations.

A2-6 Regulations, army.

Articles of war.
Changes in Army regulations.
Military post regulations.
Army police.
Army uniform.
Militia.

A2-7 Regulations other than army and navy.

Dock, harbor, police, quarantine, customs, etc.

A2-8 Presidential decrees.

Executive orders.
Proclamations.

A2-9 General orders.

Court-martial orders.

A2-10 Executive decrees other than presidential.

Executive orders.
Proclamations.
Ordinances and resolutions.

A2-11 Departmental orders.

Bureau orders. (See A3-2 "Management.")
Circular letters.
Departmental circulars.
Multiple letters.

A2-12 Instructions.

Secret.
Special.

A2-13 Rules and safety laws, aviation.

International rules and laws.
Safety precautions.

--2--

A2-14 Permits, licenses, and passes.

Permits for passage of civilians on naval vessels and aircraft. (See L20 for naval personnel, commissioned, enlisted and civil, and dependents and relatives thereof.)

Permits to take moving and still pictures.

Permits for passage of contractor's representatives on naval vessels and aircraft to witness trials and tests.

Permits for use of Government personnel for filming commercial motion pictures.

Permits to visit ships, shore stations, and private establishments doing Government work.

Property passes.

Visits to ships, shore stations, and private establishments.

Visits to executive departments and independent Government establishments.

A2-15 Decisions, opinions, criticisms, and precedents.

Interpretations of decisions, opinions, and precedents.

Requests for decisions.

To specify a particular regulation, order, instruction, rule, decision, opinion, etc., combine the above with appropriate name of subject title and file number. Circular letters and similar correspondence should be classified under the title most appropriately descriptive of the subject matter. The above classifications are furnished principally for correspondence relative to handling, issuing, etc., or circular letters, etc.

A3 ORGANIZATION AND MANAGEMENT.

A3-1 Organization.

Amalgamation.
Authority and jurisdiction of any administrative unit.
Centralization.
Cognizance.
Cognizance of work.
Concentration.
Consolidation.
Definition of authority.
Delegation of authority.
Distribution of units.
Division of any administrative unit.
Extent of authority.
Organization of charts.
Peace basis.
Powers, duties, and function of any administrative unit.
Reorganization.
Responsibility for work.
Strength and distribution (organizations; for personnel, see P16-1).
Succession of authority.
War basis.
War footing.

--3--

A3-2 Management.

Business methods and procedure.
Conferences, administrative.
Constitution and bylaws.
Coordination (organization and management).
Cooperation (organization and management).
District orders. (See A2-5 for navy yard regulations.)
Economy.
Interbureau orders.
Intrabureau orders.
Liaison (organization and management).
Navy yard orders:

Office memoranda.
Office methods.
Scientific management.
Shop management.

A3-3 Blanks and forms.

(For honorable discharge blanks, see P19-1.)

A3-4 Status of public business in bureaus and offices, report of, etc.

A4 OPERATIONS OF VESSELS, AIRCRAFT, AND SHORE STATIONS.

A4-1 Status of vessels and aircraft.

Change in status of vessels and aircraft.
Commissioning and recommissioning.
Decommissioning.
Fitting out and fitting-out yards.
In commission.
In commission in ordinary.
In full commission.
In commission in reserve.
In reduced commission.
Loss of, official declaration of.
Out of commission.
Striking from Navy list.

A4-2 Status of shore stations.

Closing of shore stations.
Establishment of shore stations. (See A1 for proposed establishment.)
Opening of shore stations.

A4-3 Ship and aircraft movements.

Arrivals and departures.
Assignments, details, towing.
Clearance.
Cruises, cruising reports.
Diversion.
Employment of aircraft.
Employment of as (escort duty, detached service, Great Lakes patrol service, ice patrol service, immigration patrol service, etc.).
Entry.
Flights.
Home port.
Itineraries.
Movement orders.
Operation orders.

--4--

Passage.
Ports of call.
Schedules of employment.
Sealed orders.
Secret orders.
Shake-down cruises.
Tentative sailings.

A4-4 Routine.

Guard, boats.
Guard, medical.
Guard, ships.

A4-5 Visits of ships or aircraft.

Visits of foreign vessels or aircraft to ports of other foreign countries.
Visits of foreign vessels or aircraft to United States ports.
Visits of United States vessels or aircraft to foreign ports.
Visits of United States vessels or aircraft to United States ports. (See A15-2.)

A5 EXERCISES, PRACTICES, AND COMPETITIONS.

A5-1 Gun exercises.

Aircraft practices.
Advanced practices.
Battle practices (antiaircraft).
Force, division, or section practices.
Gunnery instructions.
Long-range battle practice.
Night battle practices.
Short-range battle practices.
Short-range director practices.
Spotting practice (day or night), turret and broadside.
Spotting practices (antiaircraft).

A5-2 Torpedo exercises.

Battle torpedo practices.
Control.
Depth settings.
Elementary torpedo practices.
Exercise torpedoes.
Ready torpedoes.
Rehearsals.

A5-3 Mine exercises.

A5-4 Depth-charge exercises.

A5-5 Bomb exercises.

A5-6 Field and boats gun and small-arm exercises.

Boat gun practices.
Marksmanship.
Rifle matches.
Scores (small-arm practices).
Small-arm competitions.
Small-arms firing regulations.
Trophies, rifle.

A5-7 Engineering performances.

Accounts.
Allowances.

--5--

Allowed speed.
Analyses of performance.
Availability cruises.
Break-downs.
Casualties.
Conditions.
Cruising radius (actual performance).
Economy.
Eligibility.
Endurance runs.
Engineering competitions.
Factors.
Fuel accounts.
Fuel consumption.
Fuel equivalents.
Full-power trials.
Horsepower, fuel consumption, and speed curves determined after commissioning.
      (For similar data taken on preliminary and final trials, see S8.)
Light spread.
Merit.
Monev prizes.
Navy "E."
Observers.
Performance curves.
Rules.
Score.
Smoke-prevention runs.
Standardization trials. (See S8 for "Acceptance trial.")
Steaming data.
Submerged runs.
Trophies,
Umpires.

A5-8 Battle efficiency competition.

A5-9 Drills.

Abandon ship.
Angle fire data.
Angle of fall, projectile.
Ballistic exercises and diagrams.
Battery.
Bayonet.
Boat.
Collision.
Competitive.
Curved fire speed data.
Exhibition.
Fire.
Fire and rescue.
Gas defense.
Guard mounting exercise.
Marches, practice.
Marjorie Sterrett battleship fund awards.
Moments of inertia, projectile.
Navy "E."
Prize money (gunnery).
Ranging data.

--6--

Regulations.
Reports on material and general remarks, gunnery exercises.
Tournaments, military.

The following, when occurring, will be classified with the type of practice under discussion.

Ammunition allowance (gunnery exercises).
Base course.
Casualties (gunnery exercises).
Classification of guns.
Fire distribution (gunnery exercises).
Gunnery preparedness inspections.
Hang fires (gunnery exercises).
Hits (gunnery exercises).
Limits of fire.
Observers and observations.
Observations, fall of shot.
Observations, rake.
Painting of shell for gunnery exercises.
Pattern, salvo (gunnery exercises).
Predicted scores.
Prizes (gunnery exercises).
Qualifications (gunnery exercises).
Rakes (gunnery exercises).
Range.
Range tables (gunnery exercises).
Range tug (gunnery exercises).
Rehearsals (gunnery exercises).
Repair party.
Roll and pitch (gunnery exercises).
Salvo signals (gunnery exercises).
Scores method of computing (gunnery exercises).
Sealed instructions (gunnery exercises).
Spotters (gunnery exercises).
Towing vessel (gunnery exercises).
Trophies (gunnery exercises).

A5-10 Bakery and cooking competition.

A5-1I Communication competition, radio, sound, and visual, prizes for proficiency in.

A5-12 Pigeon training, races, flights, etc.

A5-13 Visual signalling competition.

A5-14 Aircraft and balloon races.

Aircraft.
Balloon.
Trophies.

A5-15 Damage control practice.

A6 COMMUNICATIONS.

A6-1 Traffic (communications).

Alasiatic messages.
Alatl messages.
Alnav messages.
Alnavsta messages.
Alpac messages.
Cable service.

--7--

Cablegrams.
Day letters.
Dispatches (messages).
Field messages.
Land-wire traffic.
Land wire service and facilities.
Complaints on land wire systems.
Night letters.
Night telegrams.
Radio traffic.
Radio traffic, routing of.
Radiograms.
Rates for radio service when sent by Government stations.
Tapping wires (listening in).
Telegrams.
Telegraph service.
Telegraph traffic (land wire).
Telephone directories.
Telephone messages.
Telephone service.
Telephone traffic (land wire).
Television (telephone).
Traffic time studies.

A6-2 Operations of radio.

Atmospheric disturbance (static, etc.).
Complaints as to delays, failures, etc., in handling.
Complaints as to handling of radio traffic.
Calibrations.
Discrepancies.
International radio accounts.
Listening in.
Radiobroadcasting.
Radio circuits.
Radio-compass bearings.
Radio-compass operations.
Radio interference (wave lengths).
Radio operating signals.
Radiophone broadcasting.
Radio schedules.
Radio service, domestic and foreign.
Television (radio).
Tests of radio station (operating).
Time signals.
Time, transmission of (broadcasting).
Tracking and drilling.
Transmission power.
Transmitting intervals.
Violations of communication instructions.
Wave lengths, radio (traffic).

A6-3 Codes and signals.

Boat hails (signals).
Bugle calls.
Call letters.
Cipher codes.
Cipher letters.
Code lists (codes).
Codes, radio.

--8--

Codes, secret.
Codes (signal).
Codes (telegraphic).
Cryptograms.
Commercial signaling code.
Flag signaling code.
International Signal Code.
Signal books.
Signaling.
Signaling, danger.
Signaling, distress.
Signaling, flag.
Signaling, fog.
Signaling, heliograph.
Signaling, night.
Signaling, pyrotechnic.
Signaling, rocket.
Signaling, semaphore.
Signaling, sound.
Signaling, tactical.
Signaling, visual.
Underwater sound signaling.

A6-4 Mail.

Air mail service.
Anonymous.
Cable addresses (other than individuals).
Cable addresses, registration of (other than individuals).
Change of address (other than individuals).
Christmas boxes and packages.
Communications from persons mentally deficient.
Communications too vague to be answered.
Courier service.
Crank letters.
Dead letters.
Destroyed.
Dispatch agencies.
Franking privilege.
Foreign.
Guard for.
Insured mail.
Irregularity in.
Lost.
Mail addresses (other than individuals).
Mailing lists.
Messenger service.
Misdirected.
Money orders.
Ocean mail service.
Parcel post.
Parcel-post zones.
Penalty envelopes.
Personal mail.
Private mail.
Postage, rates of.
Postage stamps.
Postal guide and supplements.

--9--

Postal laws and regulations.
Post routes.
Pouch service.
Registered mail.
Rural.
Service.
Secret writing.
Transportation of.
Translations.
Undelivered mail.
Violations of postal laws and regulations.

A6-5 Correspondence.

Certified copies.
Instructions regarding preparation and forwarding of.
Irregularities in.
Manner of handling.
Methods of.
Office channels.
Routing sheets.
Signing of mail and correspondence.

A6-6 Files and records.

Amendments and correction of.
Destruction of records.
Examination of records.
File and index systems.
Lost records.
Making copies of.
Preservation of.
Production in court.
Records (archives).
Storage and care of.
Use of.
Tracer system.
Useless records and papers, destruction and disposition of.

A6-7 Pigeon service.

Pigeons, pedigrees and statistics of. (For pigeon lofts see N28-7; for aircraft pigeons and equipment see F42-4.)

A6-8 Secret and confidential correspondence and flies, instructions for handling, etc.

(See A7-3 for confidential publication.)

A7 PUBLICITY AND CENSORSHIP.

A7-1 Publicity.

Announcements.
Bulletins and circulars.
Bureau supplies and accounts memoranda.
Circulars.
Commercial press (radio).
Freedom of speech and of the press.
Interviews.
Movements of vessels, daily bulletin of.
Navy radio press.
News letters, permission to publish.
Orders issued to officers, daily bulletin of.
Permission to publish.

--10--

Press clippings.
Press correspondents.
Press notices.
Press reports.
Propaganda.
Public opinion.
Public press.

A7-2 Censorship.

Articles for publication, scrutiny of.
Handling confidential and secret matters.
Leaks of confidential information.

A7-3 Confidential, secret, and registered publications.

Corrections.
Custody.
Handling.
Loss of.
Safeguarding.

A7-4 Motion pictures and films.

A7-5 Photographs.

A8 INTELLIGENCE.

A8-1 Intelligence systems.

Instructions to officers relative to intelligence reports.

A8-2 Information, collection of.

Information from abroad
Information service
Military information other than own.

A8-3 Information, dissemination of, general.

Dissemination of information to foreign governments.

A8-4 Secret Service.

Agents.
Volunteer informants.

A8-5 Espionage.

Activities of foreigners
Alien enemies
Spies
Suspects
Unfriendly persons.

A9 REPORTS AND STATISTICS.

A9-1 Annual reports.

A9-2 Semiannual reports.

A9-3 Quarterly reports.

A9-4 Monthly reports.

A9-5 Semimonthly reports.

A9-6 Weekly reports.

A9-7 Daily reports.

A9-8 Occasional reports.

A9-9 Reports of proceedings of boards, commissions.

See A17 for reports of statutory boards.

Minority reports.

A9-10 Statistics.

Census
Data
Population.

--11--

A9-11 Ship's data book.

A9-12 Lloyd's Register.

A9-13 American bureau shipping register.

A9-14 Public works data book.

A9-15 Jane's fighting ships.

A9-16 Technical data and notes.

The above subject titles and file numbers are inserted for use in "crossing" and for combining with pertinent titles,, as required, for distinguishing and filing the various reports and correlative correspondence.

A10 PUBLICATIONS.

A10-1 Preparation.

Authors and authorship.
Copyrights, copyright royalties.
Corrections to cancellations and withdrawals.
Editing.
Engraving.
Illustrations (printing and binding).
Instructions governing the printing and binding of Government publications.
Legend on publications.
Plates.
Printing and binding.
Proofs and proofreading.
Requisitions for printing and binding (authority).
Reviews and opinions.

A10-2 Magazines, periodicals, newspapers, etc., and subscriptions for.

A10-3 Requests for and exchanges.

Cancellations and withdrawals.
Distribution.
International exchange of publications.

A10-4 Directories.

City.
Port.
(For Directory, Navy, see P16-6.)

A10-5 Almanacs (except nautical) and calendars.

A10-6 Ship and station papers (magazines).

The above subject title and file number is inserted for use in "crossing" and for combining with pertinent titles as required for distinguishing and filing the various publications and correlative correspondence.

A11 RESEARCHES AND INVESTIGATIONS.

A11 Scientific and similar expeditions, explorations, observations, researches, and investigations.

The above subject title and filing number is inserted for use in "crossing" and for combining with pertinent titles, as required, for distinguishing and filing the various researches, etc., and correlative correspondence. (For analysis, tests, and experiments, see L5-2.)

A12 HISTORICAL MATTERS.

A12-1 Chronicles.

Captured records.
Deck logs.
Engineering logs.

--12--

Engineers' bell book.
Logs.
Ships machinery history.
War diaries.
War histories.
War records.

A12-2 Mementos.

Brochures (souvenir pamphlets).
Disposition of relics.
Flags, historical.
Historical tablets. (For ships see S28-5.)
Loan of relics.
Paintings, historical.
Relics.
Ruins.
Trophies. For engineering performances and gunnery exercises trophies, see A5. For athletic trophies, see P10.

A12-3 State papers.

Constitution of the United States.
Declaration of Independence.
Magna charta.

A12-4 Official seals.

Coats of arms.
Emblems.
Combine with QW to provide for any particular war.

A13 INVENTIONS, PATENTS, AND BENEFICIAL SUGGESTIONS.

A13-1 Inventions and patents, general.

A13-2 Inventions and patents of Government personnel.

Applications for patents.
Assignment of patents.
Issue of patents.
License under patents.
Priority of consideration, requests for.

A13-3 Inventions and patents, other than Government personnel.

Applications for patents.
Assignment of patents.
Issue of patents.
License under patents.
Priority of consideration, request for.

A13-4 Infringements and interferences.

Claims.
Guarantees.
Misappropriation of ideas.
Suppression.

A13-5 Royalties.

A13-6 Trade-marks.

A13-7 Beneficial suggestions.

(See L22-3 for money rewards for.)

New devices.
New ideas.

--13--

A14 FOREIGN AFFAIRS, DOCTRINES OF STATE, FOREIGN POLICY.

A14-1 Commercial intercourse. (See also L14 and L23.)

Arming of merchant vessels.
Convoying of merchant or passenger vessels.
Discrimination, foreign, commercial.
Duties, etc. (See L14-2.)
Embargo, contraband of war, confiscations in connection with.
Navigation, closing of, opening of, for diplomatic reasons.
Ports, closed ports; open ports; blockaded ports.
Three-mile limit, commercial relations.
Twelve-mile limit.

A14-2 Property rights, international (not commerce).

Private property, protection of, in foreign countries.
Property rights involved in war; confiscations; enemy property; internment of property, ships, machinery, etc.

A14-3 Personal rights, international, noncombatants.

Citizens, protection of, in foreign countries.
Internment of persons.
Impressment.
Rights of asylum.
Safe conduct.
Treatment of women and children.

A14-4 Influence of nations, international relations.

Arbitration.
Foreign interference.
Intervention.
Mandates and manifests.
Mediation.
Monroe Doctrine.
Spheres of influence.

A14-5 Diplomatic intercourse, international, doctrines of state.

Causes of war; overt acts.
Controversies; disputes.
Demonstration of force.
Diplomatic relations, severance of; nonintercourse; resumption of.
Missions, diplomatic. (See Boards, Committees, Commissions, Missions, etc.)
Missions, fleet. (See Boards, etc.)
Negotiations.
Three-mile limit; other than commercial relations.

A14-6 Status of nations, with reference to war and peace.

Neutral nations; neutrality; proclamation of neutrality.
Passage of armed forces through foreign territory.
Peace, proclamation of; termination of war; actual date of termination of war or hostilities.
War, declaration of actual date of beginning of hostilities.
War, proclamation of.

A14-7 International agreements; awards; protocols.

Alliances; allies.
Amnesty; political relations.
Annexation of territory.

--14--

Armaments, limitations of; reductions of; scrapping of ships in connection with.
Armistice. (See A16).
Boundaries, international; cessions of territory.
Cessions, other than territory.
Concessions.
Indemnities; reparations.
League of Nations.
Modus vivendi.
Treaties.

A15 HONORS AND CEREMONIES.

A15-1 Official courtesies.

Dipping of colors.
Display of flags and colors.
Dressing ship.
Escorts.
Etiquette (naval).
Guards of honor.
Honors.
Manning the rail.
Manning the yards.
Ruffles and flourishes.
Salutes and saluting stations.
Side boys.
Visits of ceremony.

A15-2 Ceremonies.

Addresses (speeches).
Anniversary commemorations not legal holidays.
Celebrations.
Coronations.
Demonstrations (ceremonies).
Detail of vessels for.
Encampments.
Inaugurations.
Memorial services.
Parades.
Public receptions.
Requests for and details of aircraft, bands, personnel, and vessels for celebrations and other functions.
Requests for speakers.
Reviews.
Unveilings.

A15-3 National airs.

The Star Spangled Banner.
For funerals of individuals, parades, and ceremonies in connection therewith, see P6-4.

A16 WAR, PREPARATION FOR; CONDUCT OF.

A16-1 National defense.

Allocations.
Military observations; in foreign countries; other. (See also A8 - Intelligence)
Military strength of other powers.
Preparations for war; preparedness.
Protection of the seacoast.

--15--

Study of military and naval problems, other than military operations.
Universal training.
War state. (See P16-9.)

A16-2 Belligerents; combatants; policies of, in conduct of war.

Arming of merchant vessels. (See A14-1.)
Civilized methods of warfare; approval or disapproval of various weapons; illegal warfare.
Hostages.
Prisoners of war; surrender of individuals and groups.
Reprisals.
Retaliation.

A16-3 Warfare operations; defensive; offensive; reports of; problems; war games.

Activities, military or naval; councils of war.
Aerial bombing operations, aerial gas warfare.
Aerial spraying or sprinkling of liquids.
Aerial warfare, methods.
Armistice (protocol of armistice).
Blockades; bombardments; sieges.
Chemical warfare. (See S77 for ship installations.)
Combined air operations.
Demobilization of ships; of aircraft.
Demobilization of troops.
Detached service, military operations.
Engagements; battles; combats; encounters; raids; guerilla warfare.
Expeditions; campaigns.
Invasion; landing of armed forces; capture; occupation; abandonment; evacuation; surrender of places, positions, ships, armies, etc.
Joint operations of combined forces.
Land antiaircraft, methods; land mining operations.
Land warfare, methods.
Mobilization of ships; aircraft; reinforcement.
Mobilization of troops; reinforcement,
Screening operations, indirect methods of attack; ambush; barrage; camouflage, decoys; smoke screens.
Sea warfare (surface); naval warfare, methods; sea antiaircraft operations; antisubmarine operations.
Search operations; explorations; ' reconnaissance; scouting; search curves; search of vessels (boarding vessels.)
Service of information; skirmishing; aerial photography.
Strategy; tactics; data; strategical and tactical information; study of data (communications); formations; maneuvers; movements.
Submarine warfare, methods.
Tactical instructions.
Terminating military operations; flag of truce; truce; cessation of hostilities; suspension of hostilities.
Theater of war; enemy territory; defensive sea areas; places.

--16--

War instructions.
All general instructions, discussions, and reports on fleet and unit problems; Army and Navy problems; war games; strategy and tactics, etc., should be placed under this heading.

A16-4 Lend-lease program.

A17 LAW; JUSTICE.

A17-1 Systems and sources of law.

Common law: constitutional law; international law; statutes.
(For Statutes of United States, see A18; For treaties, see A14.)

A17-2 Legal codes; codifications.

Civil codes; penal codes; Revised Statutes; Statutes at Large.
Enforcement of laws.
Federal laws; State laws; laws of foreign countries; municipal laws, and ordinances.
Promulgation of laws.

A17-3 Special civil jurisdictions.

Admiralty and maritime law; prize courts; commercial law; consular courts.

A17-4 Judicial powers; functions; civil courts.

Appellate jurisdiction, civil; court officers; judiciary; court calendars; dockets; court calls; court decrees; court decisions; civil.

A17-5 Remedies; proceedings; relief; legal instruments.

Actions; annulments; appeals; caveat; habeas corpus proceedings; indictments; injunctions; judgments; jury; mandamus; penalties, civil laws; suits, law; litigation; wills and testaments.
(For processes, warrants, writs, etc., see specific subject.)
Bankruptcy proceedings.

A17-6 Agents, legal matters.

Administration of oaths, other than courts-martial; by naval personnel; by civil personnel; by others; notaries public.
Attorneys; attorneys at law.
Commissioner of deeds.
Disbarments; permits.
Power of attorney. (See also L13-1.)
Practice before departments; legal ethics.

A17-7 Delivery of men to civil authorities.

Arrests of Government personnel on Federal reservations by civil authorities.
Delivery of Government personnel to civil or other Federal authority.
Government personnel acquitted by civil authorities.
Government personnel convicted by civil authorities.
Government personnel released on bail by civil authorities.
Men convicted by civil authorities; released on bail; men acquitted by civil authorities.
Naval prisoners wanted as witnesses in civil courts.
Naval prisoners wanted as witnesses or parties in civil court.
Naval prisoners wanted by other military authorities.
Naval prisoners wanted for trial by civil courts.

--17--

A17-8 Service of civil process on Navy personnel.

Subpoena, etc.

A17-9 Naval law; sources, written, unwritten.

Customs and usages. (See also A2, A12, A17-4, A18.)
Laws Relating to the Navy, annotated (Code).
Naval Digest.
Naval Courts and Boards.

A17-10 Military government; martial law.

Exceptional military courts; military commission; superior provost court; provost court.
Authority to convene; precept for.
Record of proceedings; conduct of trial.
Martial law, exercise of, by Navy; jurisdiction.
Military government, exercise by Navy; jurisdiction.
Military law.

A17-11 Courts-martial; organization; legal constitution of.

Authority to convene. (See particular kind of court.)
Judge Advocate recorder.
Qualifications; duties; legal ethics; closed court.
Counsel for judge advocate.
Clerical assistance; reporter (stenographer); interpreter.
Expense to Government of; permission.
Members, qualifications of.
Officers of United States Naval Reserve Force or Coast Guard, etc., as members.
Challenge of members.
Quorum; reduction of, membership below; attendance below.
Duties of members; oaths; limitation of functions before sworn; liability of. (See also A17-15.)
Place of meeting; court; place under jurisdiction of United States.
Precept; composition of the court. (See particular kind of court.)
President; senior member.
Qualifications; duties; absence of.
Provost marshal; guard; orderly.
Qualifications; duties.

A17-12 Courts-martial; jurisdiction; pleas to the jurisdiction. (See also A17-11.)

Appellate jurisdiction, courts-martial cases.
Jurisdiction as to persons and time; statute of limitations. (See also Enlistment, P14-4, P19-1, and State of war, P13-1)
Jurisdiction as to place offense committed; concurrent jurisdiction.
Jurisdiction of Army courts-martial to try persons in the Navy, and vice versa.
Jurisdiction over offenses; over murder.

A17-13 Procedure before trial; rights of accused.

Arrest; suspension; confinement before trial; privileges.
Charges and specifications, for trial in joinder.
Original copy, disposition of.
Copy for accused; receipt; admission of receipt in court.

--18--

Counsel for accused; qualifications; duties; legal ethics.
Nolle prosequi.
Report for trial.

A17-14 Trial-procedure. Rights of accused.

Argument; opening; closing.
Arraignment, for trial in joinder.
Pleas, rejection of. (See also A17-11, A17-12.)
Plea in bar of trial; former jeopardy; pardon.
Pleas to the general issue; not guilty, guilty, etc.
Plea of insanity.
State of accused.
Time of trial; reports of delay.

A17-15 Evidence; witnesses; testimony.

Attendance of civilian witnesses; subpoena; warrant of attachment; expenses; fees.
Attendance of witnesses in naval or military service summons; expenses.
Competence of evidence.
Hearsay; confessions; admissions; admissions of joint conspirators; dying declarations; res gestae; statements of injured persons.
Writings; letters; telegrams; oaths; affidavits; depositions; former testimony.
Oaths, administration by court-martial.
Other rules; opinion evidence; expert testimony; real evidence; exhibits as evidence.
Competence of witnesses; testimony of accused; an accomplice; a member or judge advocate of the court; counsel; medical officers; civilian physician; a husband or wife; children; mentally deficient.
Examination of witnesses, privileges of; credibility of; impeachment of.
Oaths, administering by court-martial.
Proof; evidence.
Nature of evidence; direct; circumstantial.
Issues; burden of proof; degree of proof.
Relevance; character evidence; in mitigation.

A17-16 Findings.

Method of arriving at; voting.
Recordation of.

A17-17 Sentence; courts-martial procedure.

(For Schedule of punishments, see P13-9.)

Method of arriving at sentence; voting.
Previous convictions; introduction into record.
Recordation of sentence.

A17-18 Revision.

Constitution of the Court. Health of the accused; summary court-martial cases.

A17-19 Reviewing authority; convening authority; action on case.

Approval or disapproval of sentence, portion of sentence, findings; proceedings.
Clemency by reviewing authority. (See P13-10.)

--19--

A17-20 General court-martial, record of proceedings.

Authority to convene.
Precept; composition of the court; changes in membership.
(For other subjects relating to general courts-martial, see A17-11 to 19.)

A17-21 Summary courts-martial, record of proceedings. (See also A17-11 to 19.)

Authority to convene.
Functions; jurisdiction; procedure.
Precept; composition of the court,

A17-22 Deck court, record of proceedings. (See also A17-11 to 19.)

Authority to convene.
Functions; jurisdiction; procedure.
Precept; composition of the court.

A17-23 Naval Academy courts-martial, record of proceedings. (See also A17-11 to 19.)

Authority to convene.
Functions; jurisdiction; procedure.
Precept; composition of the court.

A17-24 Court of inquiry, record of proceedings. (See also A17-11 to 19.)

Authority to convene.
Functions; jurisdiction; procedure.
Precept; composition of the court.

A17-25 Board of investigation, record of proceedings. (See also A17-11 to 19.)

Authority to convene.
Functions; powers; procedure.
Precept; composition of the board.

A17-26 Investigation by one officer, record of proceedings. (See also A17-11 to 19.)

Authority to convene.
Functions; powers; procedure.
Precept; qualifications of investigating officer.

A17-27 Board of inquest, record of proceedings. (See also A17-11 to 19.)

Authority to convene.
Functions; powers; procedure.
Precept; composition of the board.

A17-28 Naval examining board; record of proceedings.

Authority to convene.
Composition of board.
Functions; powers; precept; procedure.

A17-29 Medical examining board; record of proceedings.

Authority to convene.
Composition of board.
Functions; powers; precept; procedure.

A17-30 Marine examining board; record of proceedings.

Authority to convene.
Composition of board.
Functions; powers; precept; procedure.

A17-31 Naval selection board; record of proceedings.

Authority to convene.
Composition of board.
Functions; powers; precept; procedure.

--20--

A17-32 Marine selection board; record of proceedings.

Authority to convene.
Composition of board.
Functions; powers; precept; procedure.

A17-33 Retiring board; record of proceedings.

Authority to convene.
Composition of board.
Functions; powers; precept; procedure.

A17-34 Naval clemency board.

Authority to convene.
Composition of board.
Functions; powers; precept; procedure.

A17-35 Marine retiring boards.

A17-36 Boards of inquiry.

A18 LEGISLATION AND CONGRESSIONAL ACTION.

A18-1 Bills (legislation).

Preparation of, hearings on; House bills; Senate bills.

A18-2 Acts and resolutions (legislation).

House resolutions.
Joint Senate and House resolutions.
Senate resolutions.

A18-3 Congressional investigations.

By House committee.
By Senate committee.

A18-4 Hearings.

A19 CONFERENCES, CONGRESSES, AND CONVENTIONS (OTHER THAN POLITICAL OR ADMINISTRATIVE).

A20 UNCLASSIFIABLE COMMUNICATIONS.

Correspondence which is believed unclassifiable under the other standard titles will be handled temporarily under this title. A copy or brief of the correspondence in question will be forwarded to the department for decision as to the proper classification and for the creation of a suitable title in the next revision of the Filing Manual.

A21 AVIATION.

A21-1 Naval Air Service.

A21-2 Marine Corps Air Service.

A21-3 Army Air Service.

A21-4 Postal Air Service.

A21-5 Commercial Air Service.

This group is to be used for general correspondence on aviation. Correspondence on planes, airships, material, or personnel should be filed under proper material or personnel groups.

--21--

--22--

F1 Design.

F2 Expense administration (general).

F3 Planning.

F4 Preparation (incidental to building).

F5 Molds.

F6 Launching and docking.

F7 Construction processes.

F8 Trials.

F9 Blank.

F10 Engine section and nacelle group.

F11 Wing group (airplane).

F12 Tail group (airplane).

F13 Body group (airplane).

F14 Strength hull structure (airship).

F15 Other hull structures (airship).

F16 Fins and rudders (airship).

F17 Car structure (airship).

F18 Gas cells and envelope (airship).

F19 Outer cover (airship).

F20 Inflation gases (airship).

F21 Main propelling machinery (power plant).

F22 Transmission (airship).

F23 Propellers.

F24 Starting system.

F25 Cooling system.

F26 Lubricating system.

F27 Fuel system.

F28 Water-recovery system (airship).

F29 Tools and equipment (aircraft and engine).

F30 Blank.

F31 Instruments and navigational equipment (other than lights).

F32 Control system.

F33 Interior communication.

F34 Furnishing.

F35 Ventilating and heating.

F36 Electric power and lighting.

F37 Auxiliary machinery.

F38 Finish.

F39 Insignia and marking.

F40 Designations.

F41 Ordnance.

F42 Exterior communication.

F43 Parachutes and harness.

F44 Photography and equipment.

F45 Handling, mooring, and towing gear.

F46 Hydraulic system.

F47 Blank.

F48 Special equipment.

F49 Miscellaneous equipment.

Plans in connection with any of the foregoing will be considered as belonging therewith. Correspondence in connection with application of finish to material will be considered as belonging with the parts concerned.

--23--

F1 AIRCRAFT DESIGN.

F1-1 General board requirements.

F1-2 Preliminary design.

Area calculations.
Camera obscura.
Design data.
Design memoranda.
Layout and drawings.
Models.
Performance calculations.
Photo elastic stress analysis.
Pressure distribution.
Proportions.
Specification changes.
Static tests.
Strength calculations.
Stress analysis.
Towing basin tests.
Trim calculations.
Turning experiments.
Weight calculations.
Wind tunnel tests.

F1-3 Specifications.

Aircraft specifications.
Army and Navy standard aircraft specifications, general.
Erection specifications.
Fabrication specifications.
Finish specifications.
Insignia and marking specifications.
Material parts.
Material specifications.
Specification changes.

F1-4 Contract requirements.

Award of bid.
Delivery.
Guaranty.
Photographs.
Quantity.
Requisition.
Returned weight statement.
Special requirements.
Strength tests.

F1-5 Final design.

Center of gravity determination.
Erection instructions.
Flight performance tests (other than trials under F-8).
Mock-up.
Photographs (complete airplane on ground, water, and in air).
Return weight statement.
Strength calculations and tests.

--24--

F2 AIRCRAFT EXPENSE, ADMINISTRATION.

F2-1 Cost of inspection offices.

F2-2 Travel cost and expenses.

F2-3 All other expenses allocable directly to the building, conversion, alteration, or repair of aircraft of one model or of a single aircraft.

F3 AIRCRAFT PLANNING.

F3-1 Material inspection.

Material readiness for war.
Reports of Board of Inspection and Survey.
Reports of factory or yard estimates up to forwarding final action to factory or yard by bureau.
Reports of statutory surveys.

F3-2 Estimates and drafting (planning).

Drafting not chargeable to specific job order.
Estimates not chargeable to a specific job order.

F4 AIRCRAFT PREPARATION (INCIDENT TO BUILDING).

F4-1 Berthing and shed expenses.

Cost of disassembly and transportation to places of repair.
Scaffolding. Service changes in connection with the work, air, light, electricity, water, etc.
Staging.

F5 AIRCRAFT MOLDS.

F5-1 Dies.

Fixtures.
Jigs.
Laying down in mold loft.
Lines and offsets.
Molds.
Patterns.
Special forms.
Templates.
Patterns and templates for temporary use for repair or alteration jobs to be charged on specific job order under proper group number.

F6 AIRCRAFT LAUNCHING, DOCKING, AND MOORING.

F6-1 Preparation.

F6-2 Launching.

Ceremonies.
Report of launching data.
Sponsor.

F6-3 Docking.

(For handling trucks and handling equipment see F45.)

F6-4 Mooring.

Mast.
Shed.
Three wire.
To ship.

--25--

F7 AIRCRAFT CONSTRUCTION PROCESSES.

Brazing.
General.
Heat treatment.
Riveting.
Soldering.
Welding.
X-ray analysis and equipment.
Violet rays.
Hardness tester.

F8 AIRCRAFT TRIALS.

F8-1 Builder's trials.

F8-2 Preliminary acceptance trials.

Trials by Board of Inspection and Survey.
Trials by Bureau of Aeronautics (experimental).
Trials by contractor.

F8-3 Commissioning trials.

F8-4 Final acceptance trials.

F8-5 Post repair trials.

F9 (Blank.)

F10 ENGINE SECTION AND NACELLE GROUP.

F10-1 Engine mount.

Vibration absorbing devices.
Firewall.
Engine ring cowl and flaps.
Engine nose cowl and shutters. Fairings.

F10-2 Nacelle.

Structure.
Cowling and covering.
Access doors.
Engine support.
Firewall.
Nacelle mounting.
Standard parte.
Supports for oil coolers.
Supports for oil tanks.

F11 WING GROUP (AIRPLANE).

F11-1 Wings.

Beams.
Bearings, pulleys, fair-leads, and attachments for surface control loads.
Blocks.
Cabane struts.
Center section panels.
Compression struts.
Covering.
Drag wires (internal).
Fittings (external).
Fittings (internal).
Inspection doors and windows.
Inspection plates.
Leading edge.
Ribs.

--26--

Walkways.
Standard parts (bolts, nuts, etc.).
Tip bows.
Trailing edge.
Wing tips.

F11-2 Ailerons.

Balances.
Beams.
Blocks.
Compression struts.
Control horns.
Covering.
Drag wires (internal).
Fittings (external).
Fittings (internal).
Inspection doors and windows.
Interaileron connections.
Leading edge.
Ribs.
Standard parts (bolts, nuts, etc.).
Tip bows.
Torque tubes.
Trailing edge.
Trimming tabs.

F11-3 (Blank.)

F11-4 Struts and wires.

F11-5 Flaps.

Covering.
Ribs.

F11-6 Slots.

F12 TAIL GROUP (AIRPLANE).

F12-1 Stabilizers.

Adjustable stabilizer.
Beams.
Bearings and connections for attachment of stabilizer-adjusting mechanism. Blocks.
Compression struts.
Covering.
Drag wires (internal).
Fittings (external).
Fittings (internal).
Inspection doors and windows.
Leading edge.
Ribs.
Standard parts (bolts, nuts, etc.).
Tip bows.
Trailing edge.

F12-2 Elevators.

Balances.
Beams.
Blocks.
Compression struts.
Control horns.
Covering.
Drag wires (internal).

--27--

Fittings (external).
Fittings (internal).
Inspection doors and windows.
Leading edge.
Ribs.
Standard parts (bolts, nuts, etc.).
Tip bows.
Torque tubes.
Trailing edge.
Trimming tabs.

F12-3 Fins.

Beams.
Blocks.
Compression struts.
Covering.
Drag wires (internal).
Fittings (external).
Fittings (internal).
Inspection doors and windows.
Leading edge.
Ribs.
Standard parts (bolts, nuts, etc.).
Tip bows.
Trailing edge.

F12-4 Rudders.

Balances.
Beams.
Blocks.
Compression.
Control horns.
Covering.
Drag wires (internal).
Fittings (external).
Fittings (internal).
Inspection doors and windows.
Leading edge.
Ribs.
Standard parts (bolts, nuts, etc.).
Tip bows.
Torque tubes.
Trailing edge.
Trimming tabs.

F12-5 Struts and wires.

F13 BODY GROUP (AIRPLANE).

F13-1 Body.

Fuselage.

Brace wires.
Cockpit enclosures.
Cowling and covering.
Doors and windows.
Engine mounting.
Fairings.
Fire bulkhead.
Fittings.
Foundations for installation.
Head rest.

--28--

Integral tail stubs.
Integral wing stubs.
Longerons.
Plating.
Stanchions.
Standard parts.
Steps (grips).
Turn-over structure.
Windshields.

Hull.

Blocks.
Bombing window.
Booms.
Braces.
Bulkhead.
Coaming.
Edgings and rubbing strips.
Fairing.
Fittings.
Flooring.
Foundations for installations.
Frames.
Handhole covers.
Keel.
Keelson.
Longitudinals.
Outrigger,
Planking.
Plating.
Stanchions.
Standard parts.
Step wedge.
Stringers.
Walking way
Water rudder and controls.
Wire.

F13-2 Landing gear (land type).

Land chassis.

Axle.
Fittings.
Parking brakes.
Retracting mechanisms.
Struts.
Tires and tubes.
Tricycle type.
Wheels and brake wheels.
Wires.

Tail skids.

Fittings.
Shoe.
Skid proper.

Tail wheels.
Wing skids.

F13-3 Landing gear (water type).

Blocks.
Braces.

--29--

Bulkheads.
Drain plugs.
Edgings and rubbing strips.
Fittings.
Float retracting mechanism.
Frames.
Handhole covers.
Bull keel.
Keelson.
Longitudinals.
Main floats.
Planking.
Plating.
Recovery hook.
Stanchions.
Standard parts.
Step wedge.
Stringers.
Strut and wires.

End fittings.
Fairing.
Struts.
Wires.

Walking way.
Water rudder and controls.
Wing floats.

F13-4 Catapulting.

Fittings,
Jet propulsion.
Provision for.
Reinforcements.

F13-5 Arresting equipment.

Axle hooks.
Retrieving gear.
Trailing hooks.

F13-6 Flotation gear.

Bags.
CO₂ cylinders.
Inflation equipment.
Integral flotation.
Testing of.

F13-7 Brakes.

Brake controls.

F13-8 Devices for landing on airships.

F13-9 Landing gear (amphibian type).

Main floats.
Operating gear,
Wheels.

F13-10 Landing gear (ski type).

F13-11 Shock absorbers.

Amphibian.

Oleo.

General.
Landing gear.

Cord.
Oleo.
Rubber disks.

--30--

Tail wheel.

Cord.
Oleo.

F13-12 Barrier crash provision.

Provision on landing gear.

F14 STRENGTH HULL STRUCTURE (AIRSHIP).

F14-1 Bow.

Axial cable and fittings.
Bow cap.
Bow mooring spindle.
Bow mooring structures.
Bow stiffeners.
Cloth taping.
Framing.
Gangplanks.
Keel walkway.
Miscellaneous.
Outrigger bow mooring spindle.
Thrust bearing and bow mooring spindle.
Wiring.

F14-2 Main body.

Axial cable and fittings.
Cloth taping.
Deck trolley attachments.
Framing.
Girders (lattices).
Keel.
Wiring.

F14-3 Stern.

Flagstaff.
Framing.
Miscellaneous.
Wiring.

F15 OTHER HULL STRUCTURES (AIRSHIP).

F15-1 Hull reinforcement over propellers.

Fabric and lacing.
Fittings.
Framing.
Wiring.

F15-2 Auxiliary corridors.

Cord netting,
Framing.
Miscellaneous structure and fittings.
Wiring.

F15-3 Climbing shafts and platforms.

Auxiliary structure and fittings.
Framing.
Gas pressure netting and covering.
Wiring.

F15-4 Officers' and crew's quarters and water-closet.

Auxiliary structure and fittings.
Fabric.
Framing.
Furniture.
Netting.
Wiring.

--31--

F15-5 Exhaust trunks, hoods, and hull supports.

Auxiliary structure and fittings (wood, fabric, etc.).
Framing.
Netting.

F15-6 Access hatches.

Framing.
Operating gears and fittings.

F15-7 Mooring and handling foundations.

Auxiliary structure and fittings.
Framing.
Wiring.

F15-8 Ordnance foundations.

Auxiliary structure and fittings.
Framing.
Wiring.

F15-9 Cordage gas-pressure netting.

Fittings.
Panels.

F15-10 Wire gas-pressure netting.

Fittings.
Panels.

F15-1I Water-ballast system.

Ballast bags.
Discharge buckets.
Filling pipes and fittings.
Hoods and supports.
Operating gear.
Suspension.

F15-12 Sand-ballast system.

Bags.
Discharge.
Hoppers.
Operating gear.
Racks.
Scoops.
Suspension.

F15-13 Other foundations and structure not classified elsewhere.

Framing.
Fittings.
Wiring.

F15-14 Arresting and launching of aircraft aboard lighter-than-air craft.

F16 FINS AND RUDDERS (AIRSHIP).

F16-1 Fins.

Castings.
Fittings.
Framing.
Internal wire bracing. Pintles.
Suspension wiring.

F16-2 Rudders.

Castings.
Fittings.
Framing.
Pintles.
Wiring.

--32--

F17 CAR STRUCTURE (AIRSHIP).

F17-1 Car structure.

Buffer bags.
Fabric and other coverings (glass, cellon, etc).
Fittings.
Framing.
Miscellaneous structure and fittings.
Outside plating.
Wiring.

F17-2 Car suspension.

Cable and fittings.
Release gear.
Struts and fittings.

F17-3 Observation baskets.

F18 GAS CELLS AND ENVELOPE (AIRSHIP).

F18-1 Gas cells (rigid).

Fabric. (See F18-6.)
Supports.
Valves and fittings.

F18-2 Gas envelopes (nonrigid.)

Fabric.
Internal rigging.
Nose stiffeners and battens,
Patches.
Pressure tubes.
Rip panels.
Valve and fittings.

F18-3 Ballonets.

Fabric.
Internal rigging.
Miscellaneous fittings.
Valves.

F18-4 Gas manifolds.

Fabric.
Miscellaneous fittings.

F18-5 Air scoops.

Check valves.
Manifold.
Scoops.

F18-6 Gas-cell fabric.

Goldbeater's skin.
Substitutes for goldbeater's skin.

Aluminum foil.
Cellophane.
Cement.
Rubber latex,
Tests.

F19 OUTER COVER (AIRSHIP).

F19-1 Bow.

Attachments.
Cement.
Dopes.
Fabric panels.
Lacing cord.
Lacing edges.
Sealing strips.

--33--

F19-2 Main body.

Attachments to wiring.
Cement.
Dope.
Fabric panels.
Lacing cord.
Sealing strips.

F19-3 Stem.

Attachments.
Cement.
Dope.
Fabric panels.
Lacing cord.
Lacing edges.
Sealing strips.

F20 INFLATION GASES.

F20-1 Hydrogen.

Ferrosilicon.
Caustic soda.

F20-2 Helium.

F21 AIRCRAFT MAIN PROPELLING MACHINERY.

F21-1 Internal-combustion engine.

Battery-coil system.

Breaker points.
Distributor.

Bearings.
Cam-shaft and valve-operating assembly.

Cam and hub
Push rods.
Rocker arms.
Tappets.

Carburetors.

Hot-air heaters and hot spots.

Crankcase.
Crankshafts.
Cylinders.
Fuel pumps, engine-driven.
Fuel pumps (integral with engine).
Gears.
Generators.
Gun control.

Gun-control gears.
Gun-control mechanism.

Impeller clutch band.
Induction system (integral with engine).

Manifolds and intake pipes.

Magnetos.

Armature.
Breaker points.
Coils.
Distributor blocks.

Oil-pump system (integral with engine).

Internal oil piping and connections.
Oil feed bearing bracket assembly.

Pistons.
Pressure bafflers.

--34--

Propeller hubs.
Rods, connecting.
Spark plugs.
Starter drive.

Starter jaw.

Superchargers.

Centrifugal.
General electric.
Moss.
Roots blower.
Valve type.

Switches.
Tachometer drive.
Valves, valve spring, and retainers.
Water-pump system (integral with engine).
Wiring, ignition (integral with engine).

Radio shielding.

F21-2 Engine accessories and parts.

Exhaust manifold, stacks, or collector rings.
Exhaust muffler.
Foundation bolts.

F21-3 Engine controls.

Altitude adjustment control levers.
Compression relief gear.
Reach rods, connections, and fittings.
Spark-control levers.
Throttle.

F21-4 Internal-combustion turbines.

F21-5 Steam engines (reciprocating).

F21-6 Steam turbines.

F21-7 Fuel-oil engines.

F21-8 Engine test stands.

Electric cradle dynamometer.
Fan.
Fixed.
Torque reaction.
Water brake.

F22 AIRCRAFT TRANSMISSION (AIRCRAFT).

F22-1 Gearing and shafting engine to propeller.

Brake.
Clutches.
Flywheel (separate).
Propeller hub.
Reduction and reversing gears.
Shafting and bearings.

F22-2 Control.

Cables.
Cranks.
Fittings.
Levers.
Rods.

F23 AIRCRAFT PROPELLERS.

F23-1 Propellers.

Anti-icing devices on propeller.
Controls.

--35--

Ordinary propellers.
Propeller balancing machines.
Propeller spinners.
Reversing propellers.
Variable pitch propellers.

F24 AIRCRAFT STARTING SYSTEM.

F24-1 Electric starter (direct geared or inertia).

Back-fire mechanism.
Battery.
Crank.
Engaging mechanism.
Housing and brackets.
Motor.
Reduction gears.
Switch.

F24-2 Gas engine starter.

Back-fire mechanism.
Crank.
Engaging mechanism.
Gas engine (aircraft starter).
Gearing (starter).
Housing and brackets.

F24-3 Hand starters (direct geared and inertia).

Back-fire mechanism.
Crank.
Engaging mechanism.
Housing and brackets.
Reduction gears.

F24-4 Air starter.

Air distributor.
Back-fire mechanism.
Compression.
Engaging mechanism.
Housing and brackets.
Motor.
Piping.
Reduction gear.
Starting valve.
Storage tank.

F24-5 Primer.

Cold-weather starting.
Valves.
Piping.
Pumps.

F24-6 Starter magneto.

Booster.
Housing.
Hand crank.
Operating gears.
Remote control (pull type).

F24-7 Cartridge starters.

Intake tube cartridges.

--36--

F25 AIRCRAFT COOLING SYSTEM.

F25-1 Water radiator.

Connections.
Core.
Fittings.
Header and expansion tanks.

F25-2 Temperature control.

Air scoops.
Connections.
Fittings.
Operating gear (levers, gears, rods, wires, etc.).
Shutters.

F25-3 Water piping.

Connections.
Fittings.
Piping (metallic and nonmetallic).

F25-4 Radiator water containers.

Connections.
Fittings,
Overflow tanks.
Piping.
Storage containers (bags).
Suspension.

F26 AIRCRAFT LUBRICATION SYSTEM.

F26-1 Oil tank.

Connections.
Fittings.
Portable containers.
Service tanks.
Storage tanks.
Suspension (straps).

F26-2 Oil radiator.

Boxes.
Connections.
Core.
Fittings.
Oil regulators.

F26-3 Oil heaters and oil coolers.

Coils.
Connections.
Fittings.
Oil temperature control and check valves.
Oil sumps.
Warm-up compartments.

F26-4 Oil piping.

Connections.
Fittings.
Manifolds.
Piping.
Strainer.

F27 AIRCRAFT FUEL SYSTEM.

F27-1 Fuel tanks.

Connections.
Dump valves.
Filler caps.
Fittings.

--37--

Fixed service or gravity tanks.
Fixed storage tanks.
Releasing devices.
Slip storage.

F27-2 Fuel piping.

Connections.
Fittings.
Fuel cocks.
Fuel pressure regulators (relief valves).
Piping.
Strainers and filters.

F27-3 Hand pumps.

Connections.
Crank.
Fittings.
Pedals.
Piping.
Pump.

F27-4 Power pumps (not integral with engine).

Connections.
Fittings.
Gearing.
Motor.
Piping.
Pump.
Windmill.

F28 AIRCRAFT WATER RECOVERY SYSTEM.

F28-1 Condensers.

F28-2 Piping.

Air.
Connections.
Exhaust.
Fittings.
Water.

F28-3 Pumps.

Air.
Water.

F28-4 Separators (for cleaning condensate).

F28-5 Control mechanism.

F29 TOOLS AND EQUIPMENT (AIRCRAFT AND ENGINE).

F29-1 Tools and equipment.

Bearing reaming equipment.
Engine overhaul stands.
Fixed.
Portable.
Valve refacing and reseating equipment.

F29-2 Material for repairs.

Spare material.
Spare parts.

F29-3 Stock material and parts.

Naval Aircraft Factory standard parts.
Material not otherwise classified.

F30 (Blank)

--38--

F31 Aircraft Instruments and Navigational Equipment (other than lights).

F31-1 Instruments (other than navigational, electrical, test, and calibration).

Accelerometer.
Air-speed indicator.
Air-speed indicator tube (Pitot static tube).
Air thermometer.
Altimeter.
Automatic pilot.
Bank indicator.
Binocular.
Carburetor thermometers.
Clock.
Directional gyro.
Engine cylinder thermometer.
Engine gauge unit.
Fuel and oil pressure gauges.
Fuel flowmeter.
Fuel quantity gage.
Inclinometer.
Manifold pressure gage.

Oil thermometer.

Tachometer.
Turn indicator.
Rate of climb indicator.

F31-2 Instrument flying equipment (blind flying and night flying, except lights)..

F31-3 Navigation instruments and equipment.

Chart boards.
Charts (maps).
Chronometers.
Compass (earth inductor).
Compass (magnetic).
Drift computer.
Drift indicator.
Drift sight.
Ground speed indicator.
Navigational computer.
Octant.
Plotting board.
Sextants and octants.
Stop watch.

F31-4 Flight-test instruments.

Air-speed recorder.
Air-temperature thermometer.
Strut thermometer.
Barograph.
Recording tachometers.
Thermograph.

F31-5 Calibration (testing) equipment.

Air-speed indicator calibrator.
Altimeter calibrator.
Mercurial barometer.
Tachometer calibrator.
Thermometer calibrator.

--39--

F32 Control system (Aircraft).

F32-1 Rudder controls.

Balance springs.
Fairleads, pylons, sheaves, and fittings.
Foot bars.
Leads (chain, wire, cable, solid wire, and fittings).
Operating rods, tubes, etc.
Pedals.
Preventer lines.
Reducing gearing.
Steering engines.
Steering stands.
Steering wheels.
Supports.
Telemotors.
Tension adjustment devices.
Transmission shafting.

F32-2 Elevator controls.

Balance springs.
Fairleads, pylons, sheaves, and fittings.
Leads (chain, wire, cable, solid wire, and fittings).
Operating rods, tubes, etc.
Posts.
Preventer lines.
Reduction gearing.
Steering engines.
Steering stands.
Steering wheels.
Telemotors.
Tension adjustment devices.
Transmission shafting.
Yoke supports.

F32-3 Aileron controls.

Cables.
Fairleads, etc.
Pulleys, bearings.
Rods, tubes, etc.
Stick.
Supports.
Torque tubes.
Wheel.

F32-4 Stabilizer controls.

Bearings.
Driver.
Loads.
Sprockets.
Wheel or levers.

F32-5 Wing form controls.

Angle of incidence.
Slotting wing.
Swelling wing.

Each of the above can be divided into control boxes, wheels, reduction gearing, shafting, operating rods, tubing, leads, fairleads, pulls, etc.

F32-6 Minor controls.

Air scoops.
Air valves.
Gas valves.
Hatches.

--40--

Manifolds.
Ropes.
Sand ballast.
Traps.
Water ballast.
(Each of the above can be divided into control boxes, wheels, reduction gearing, shafting, operating rods, tubing, leads, fairleads, pulls, etc.)

F33 INTERIOR COMMUNICATION (AIRCRAFT).

F33-1 Interior communication.

Air message pads and holders.
Klaxons.
Leads and fittings.
Printator.
Telautographs.
Telegraphs, control.
Telephones.
Voice tubes and fittings.

F34 FURNISHINGS (AIRCRAFT.)

F34-1 Living quarters furnishings.

Cushions.
Hammocks.
Linen.
Lockers.
Mattresses.
Personal equipment and bags.
Sleeping bags.
Table chairs,
Toilet fixtures.

F34-2 House and office furnishings.

Desks and chairs.
File cases.
Typewriters.

F34-3 Messing equipment.

Cooking utensils (portable).
Galley ranges.
Kettles and boilers.
Lockers for gear.
Messing gear.
Refrigerators.
Vacuum bottles.

F34-4 Sanitation.

Distillers.
Fresh-water storage and fixtures.
Lavatories and accessories.
Water breakers.
Water-closet fixtures.

F34-5 Medical.

First-aid kits.
Medicines and dressings.
Medicine cases.
Miscellaneous medical equipment.

F34-6 Fixed equipment.

Baggage compartments.
Carbon dioxide.

--41--

Carbon tetrachloride.
Emergency equipment.
Fire extinguishers.
Flooring, Floorcovering.
Instrument board.
Lockers.
Message carrier.
Mirrors.
Miscellaneous living equipment.
Portable platforms and ladders.
Synthetic plastics.
Upholstery.

F35 VENTILATING AND HEATING (AIRCRAFT).

F35-1 Ventilation system, apparatus, and accessories.

Air scoops.
Cowls.
Ducts.
Fans.
Hatches,
Miscellaneous fittings.
Shutters.
Ventilating sets.

F35-2 Heating apparatus and accessories.

Coils, exhaust gases.
Coils, hot water.
Electric heaters.

F35-3 Cabin supercharging.

F36 ELECTRIC POWER AND LIGHTING (AIRCRAFT).

F36-1 Electric power generators.

Foundations.
Gas-engine-driven generators.
Generators.
Spare parts (generators).

F36-2 Electric power distribution.

Circuit breakers.
Conduits.
Cut-outs.
Fuses.
Insulating material.
Insulators.
Junction boxes.
Power leads.
Rheostats.
Switchboards,
Switches.
Transformers.

F36-3 Batteries.

Dry-cell storage batteries.
Permanent storage batteries.
Portable storage batteries.
Storage-battery boxes.

F36-4 Motor generators and similar apparatus.

--42--

F36-5 General lighting.

Appliances.
Fixtures.
Wiring.

F36-6 Portable lights.

Flash lights and batteries.

F36-7 Float lights.

Electric.

F36-8 Interior lights.

Compass lights.
Dome lights.
Instrument board lights.

F36-9 Signal lights.

Blinkers.
Pyrotechnic signal lights.
Recognition or identification.

F36-10 Navigating lights.

Anchor lights.
Running lights.

F36-11 Landing lights (aircraft).

Electric wing tip flares.

F36-12 Electrical instruments.

Ammeters.
Charge and discharge indicators.
Voltmeters.

F37 AUXILIARY MACHINERY (AIRCRAFT).

F37-1 Mooring machinery.

Electric winches.
Hand winches.

F37-2 Auxiliary pressure system.

Airlines.
Blowers.
Drive.
Ducts.

F38 FINISH.

F38-1 Dope.

Acetate.
Dope solvent.
General.
Nitrate.
Pigmented.

F38-2 Painting.

Antifouling paints.
Bituminous.
Cleaning compound.
Dope proof.
Enamels.
Gasoline proof.
General.
Insignia colors.
Interior finish.
Lacquers.
Paint and varnish remover.
Painting on fabric.
Painting on wood.
Painting on metals.

--43--

Primer.
Radium luminous paints.
Rust preventative compound
Seam compound.
Varnish.

F38-3 Finish processes.

Anodic.
Brushing.
Cadmium.
Chromium.
Cleaning compounds.
Copper.
Galvanizing.
General.
Hot oil dip.
Lead plating.
Metal spray coating.
Nickel.
Oxidizing.
Parkerizing.
Pickling.
Plating.
Polishing.
Rubberized coating.
Salt spray testing.
Sand blasting.
Scraping.
Silver.
Sodium silicate.
Tin.
Zinc.

F38-4 Temporary preservation coating (for shipping and storage).

General.
Oil.
Slushing compounds.

F38-5 Fireproofing.

Fabric.
General.
Wood.

F39 INSIGNIA AND MARKING.

F39-1 Insignia.

Airplane.
Airship.
Balloon.
General.

F39-2 Distinguishing marks.

Airplane.
Airship.
Balloon.
General.

F39-3 Draft marks and gauges.

General.
Level lines.
Load water lines.

--44--

F39-4 Labeling (marking).

General.
Information plates.
Marking for electric circuit.
Marking for piping.

Air.
Fuel.
Helium.
Hydrogen.
Oil.
Water.

Name plates.
Serial numbers.
Tagging.

F39-5 Camouflage.

Airplane.
Airship.
Balloon.
General.

F40 DESIGNATING.

F40-1 Designations.

Change in designation.
Class.
Model.
Name.
Nomenclature.
Number.
Type.

F41 AIRCRAFT ORDNANCE.

F41-1 Aircraft machine guns.

Barrels.
Breech mechanism.
Feeding mechanism.
Operating mechanism.
Trigger mechanism.

F41-2 Aircraft machine gun controls.

Drive unit.
Firing keys.
Impulse cable,
Impulse generators.
Operating cable.
Switches.
Trigger motor.

F41-3 Aircraft machine gun sights.

Sights (free gun).
Optical sight.
Sights, open (fixed gun).
Sights, telescopic.
Spotting glasses.

F41-4 Aircraft machine gun mounts.

Mounts, fixed gun.
Mounts, flexible gun.

F41-5 Aircraft machine gun ammunition carriers.

Ammunition boxes.
Belts.

--45--

Chutes.
Ejection boxes.
Pans.

F41-6 Aircraft bombs.

Body.
Bursting charge.
Demolition.
Exploders.
Fuses, bomb.
Fuses, delay.
Fuses, instantaneous.
Fuses, nose,
Fuses, tail.
Incendiary.
Nose.
Reserve aircraft bombs.
Shrapnel.
Stabilizers.
Tail.
Vanes.

F41-7 Aircraft bomb racks.

Arming and safety devices.
Release controls.
Releases.

F41-8 Aircraft bomb sights.

Bearings.
Bubbles, bomb sight.
Directors system.
High altitude.
Low altitude.
Mounts.
Operating mechanism.
Repair kits (bomb sights).
Stabilizers.

F41-9 Aircraft torpedoes.

Devices for aircraft launching of torpedoes.
Director.
Drogues.
Racks.
Release controls.
Releases.
Reports of launching torpedoes from aircraft.

F41-10 Training and target practice material (ordnance).

Bombing.
Bombs, dummy.
Camera gun films.
Camera guns.
Gunnery.
Machine guns (ground type).
Rakes.
Reels.
Releases.
Subcaliber bombs.
Targets, fixed.
Targets, fixed aerial.
Targets, moving aerial.
Targets, sleeves.

--46--

Towing cable.
Trips.

F41-11 Small arms and equipment.

Pistols.
Shotguns.

F41-12 Gas and smoke warfare apparatus.

F41-13 Armor and allied protective materials.

F41-14 Aircraft machine gun synchronizers.

Impulse generator.
Solenoids.

For the purpose of cost repair and job order numbering F41 will be used, but for classifying correspondence the following will be handled under the file numbers indicated:

Aircraft ammunition (service, tracer, armor-piercing, armor-piercing incendiary, incendiary, armor-piercing tracer), S78-11.
Flares, aircraft. (See S70-1 and F36-11.)
Float lights, aircraft. (See S70-1 and F36-7.)

F41-15 Pyrotechnics.

Aircraft parachute flares.
Float lights.
Smoke candles.
Very's pistol and ammunition.

F42 EXTERIOR COMMUNICATION (AIRCRAFT).

F42-1 Aircraft radio.

Amplifier.
Antennae.
Batteries.
Electrical bonding.
Radio compass.
Radio generator mounts.
Receiver sets.
Telephone.
Transmitter sets.
Wiring and wiring appliances.

For correspondence on radio installation for a particular airplane or type of airplane, the above number will be used combined with airplane or type number. Where multiplicity of divisions of correspondence on airplane radio apparatus is required, as at Navy yards, Bureau of Aeronautics, or Bureau of Ships, etc., subtitles may be obtained by using titles and numbers listed in Bureau of Ships' radio pamphlet RE-1A-1065, items 18 to 99 inclusive. File numbers will be obtained by combining with the standard file number F42-1, the class number as listed in that pamphlet. All titles contained in pamphlet will be shown in Filing Manual index.

F42-2 Sound signals.

F42-3 Visual signals.

F42-4 Pigeons and equipment.

--47--

F43 PARACHUTES AND HARNESS.

F43-1 Parachutes.

Containers.
Linen tapes.
Sails.
Silk cloth.
Silk cords, Silk tapes.
Substitutes for silk cloth.
Thread.

F43-2 Parachutes harness (webbing, etc.).

F44 PHOTOGRAPHY AND EQUIPMENT (AIRCRAFT).

F44-1 Photography.

Motion-picture.
Still.

F44-2 Photographic supplies and equipment.

Acid and chemicals.
Cameras (motion-picture).
Cameras (still).
Developing and printing.
Films and containers.
Instructional films.
Lantern slides.
Lenses.
Lockers.
Paper.
Plates.
Tripods.

F44-3 Aerial photographs.

Record.
Structural.

F45 HANDLING, MOORING, AND TOWING GEAR.

F45-1 Anchors.

Anchors and grapnels.
Drogues.
Sea drags.

F45-2 Ropes, cables, and lines.

Blocks, sheaves, fair-leads.
Cable fittings.
Drag ropes.
Hauling cables.
Handling lines.
Line fittings.
Mooring cables.
Rope fittings,
Send-off poles.

F45-3 Mooring devices (does not include mast or docking carriages).

Grapnel (mooring).
Mooring point.
Rosendahl's method.
Taxying [sic] car.
Three wire.

F45-4 Hoisting slings (airplane).

F45-5 Docking devices (aircraft).

Docking carriages.
Docking rails.
Docking trolleys.

--48--

F45-6 Towing.

Towing cables.

F46 HYDRAULIC SYSTEM.

F47 (blank.)

F48 SPECIAL EQUIPMENT (AIRCRAFT).

F48-1 Beaching gear.

Ballast.
Brakes.
Flotation tanks.
Steering devices.
Trucks.
Wheels.

F48-2 Anti-icing equipment.

Containers for anti-icing fluid.
Propeller anti-icing fluid.
Pumps.
Rubber boots for wings and tail surfaces,
Tubing and fittings.

F48-3 Special hoists and platforms.

Bomb hoists (not integral),
Bomb loading platforms.
Engine hoists.
Engine maintenance platforms.
Propeller hoists.

F49 MISCELLANEOUS EQUIPMENT (AIRCRAFT).

F49-1 Oxygen apparatus.

Breathing apparatus.
Oxygen regulators.
Oxygen tanks.

F49-2 Gas masks (aircraft).

F49-3 (Blank).

F49-4 Crew equipment.

Asbestos clothing.
Baggage.
Bulletproof vests.
Extra clothing.
Face masks.
Flying suits.
Gauntlets and gloves.
Goggles.
Helmets.
Miscellaneous.
Waders.

F49-5 Safety belts.

F49-6 Life preservers.

F49-7 Portable instruments.

Binoculars.
Megaphones.
Planimeters.
Protractors, dividers, etc.
Reading glasses.
Rulers, parallel.
Sextants.
Slide rules.

F49-8 Emergency propulsion sails.

F49-9 Engine and cockpit covers.

--49--

--50--

H1 Hydrography, oceanography, and allied topics.

H2 Navigation and navigational aids.

H3 Obstructions to navigation.

H4 Meteorology.

H5 Astronomy and astronomical reports.

H6 Physics.

H7 Time.

--51--

H1 HYDROGRAPHY, OCEANOGRAPHY, AND ALLIED TOPICS.

(For Grand Divisions, Water, see QH; for Geographic Divisions, Water, see QX)

H1-1 Anchorages and Harbors (includes reports of dredging).

Anchorages, forbidden.
Berthing facilities. (See L24).

H1-2 Channels (includes reports of dredging).

H1-3 Charts and Hydrographic publications.

Request for.

H1-4 Distances.

H1-5 Earthquakes (seismic disturbances).

H1-6 Fish banks, nets, stakes, etc.

H1-7 Islands (new ones, existence, nonexistence, change of form, location on charts, etc.).

H1-8 Magnetism and magnetic disturbances.

H1-9 Ocean currents, Gulf, Japanese, Equatorial, etc.

Bottle papers.

H1-10 Reefs, rocks, shoals, and banks.

H1-11 Rips and tide rips.

H1-12 Rivers and canals.

HI-13 Routes, ocean.

H1-14 Sea level, tides.

H1-15 Sea water.

Constituents and specific gravity.
Discolored.
Great waves.
Oil spots.
Oil used to calm sea.
Temperature.
Tidal waves.
Waterspouts.

H1-16 Sound, sound waves, and echoes.

Aberrations and silent areas.
Means of detecting.

H1-17 Soundings, deep-sea, etc.

H1-18 Surveys.

Aircraft surveys.
Hydrographic.
Reconnaissance,
Topographic.

H1-19 Trial courses, location of (obsolete, see NE.)

H1-20 Volcanoes

H1-21 Chart portfolios.

H1-22 Pollution of navigable waters.

H1-23 Air routes.

H1-24 Whales, seals, etc., observation of.

H1-25 Geographic positions.

Charted positions.
Latitude and longitude established.
Observation spots.
Records and methods of establishing.

H1-26 Geographic names, decisions of Geographic Boards. (For geographic locations, see also QG.)

--52--

H2 NAVIGATION AND NAVIGATIONAL AIDS.

H2-1 Anchorage.

Anchors for mooring.

H2-2 Beacons and ranges (other than radio and aerial).

H2-3 Buoys and dolphins, channel, mooring, range, and rack.

H2-4 Buoys, surveying.

H2-5 Fixing position (including computations and formulae),

H2-6 Hydraulics (as applied to action of passing vessels).

H2-7 Leader systems.

H2-8 Lighthouses and light vessels (location and character).

H2-9 Range-finder signals and stations.

H2-10 Rescue work.

H2-11 Seamanship.

H2-12 Structures, trees, earth formations (aids).

H2-13 Submarine signaling stations.

H2-14 Target and torpedo ranges.

H2-15 Zone system (obsolete, see H7-Time).

H2-16 Fog-signal stations.

Beacons.

H2-17 International ice patrol.

H2-18 Time balls and shapes.

H2-19 Life-saving stations (location and character).

H2-20 Radio beacons, ships and aircraft.

H2-21 Magnetic survey ranges.

Correspondence on erection and repair of structures, see N20.
For work on light vessels, see QS9.

H3 OBSTRUCTIONS TO NAVIGATION.

H3-1 Buoys adrift.

H3-2 Derelicts (vessels adrift out of control).

H3-3 Logs, timbers, trees, small boats, rafts, broken parts of vessels, etc.

H3-4 Fog and smoke.

H3-5 Ice, icebergs, and ice formations.

H3-6 Mines, surface or subsurface, explosive or nonexplosive. (See also S76 Mines.)

H3-7 Sea and gulfweed.

H3-8 Wrecks (vessels fast to bottom or stranded).

H3-9 Clearance of structures over navigable waters.

H3-10 Obstructions to air navigation (high buildings, towers, chimneys, flagpoles, high-tension wires, etc.).

H4 METEOROLOGY AND AEROLOGY.

H4-1 Aurora borealis and aurora australis.

H4-2 Lightning striking ship or affecting the compass (St. Elmo's light).

H4-3 Meteorites, meteoroids, meteors, and bolides.

H4-4 Meteorological and aerological instruments and equipment

(aerographs, anemometers, anemographs, barometers, theodolites, pilot balloons, etc.).

Experimental and development projects.
Instructions for installation, operation, maintenance, etc.
Specifications, descriptions, prices, estimates.

--53--

H4-5 Requests or requisitions for aerological instruments equipment, and supplies.

Invoices.
Requisitions.
Shipment notices.
Surveys.

H4-6 Observatories and stations; meteorological storm-warning towers and signals.

H4-7 Weather service (includes communications and instructions concerning.)

Forecasts and advices.
Observations and reports.

H4-8 Aerological forms (including instructions therefore).

H4-9 Weather phenomena.

Blizzards.
Floods,
Fog and fog dispersal.
Gales.
Hurricanes.
Ice formations.
Monsoons.
Static electricity.
Typhoons.

H4-10 Weather averages and statistics; climatology. (Filed by localities or regions.)

H4-11 Aerological policy, plans, and programs.

Annual report data.
News.
Progress.
Quarterly survey data.

H5 ASTRONOMY AND ASTRONOMICAL REPORTS.

H6 PHYSICS.

H7 TIME.

Central.
Daylight saving.
Eastern.
Greenwich.
Mountain.
Pacific.
Standard.
Times adopted in other countries and zone systems. (For time signals see A6-2.)
Washington Naval Observatory.

--54--

L1 Appropriations, estimates, and allotments.

L2 Specifications.

L3 Advertising.

L4 Purchasing.

L5 Inspection and tests.

L6 Payments, receipts, and deliveries.

L7 Allowances.

L8 Procurement.

L9 Care and preservation.

L10 Accounting.

L11 Appreciation, depreciation, and disposition.

L12 Investments and deposits.

L13 Insurance and bonding.

L14 Duties, taxes, assessments, and dues.

L15 Mortgages.

L16 Pay, salaries and wages; money allowances to personnel, including allotments of pay, rental allowances, rations, and subsistence allowances.

L17 Incomes.

L18 Financial dealings (individuals).

L19 Personal effects.

L20 Travel.

L21 Shipment.

L22 Gifts.

L23 Bills of exchange.

L24 Resources and facilities.

--55--

L1 APPROPRIATIONS, ESTIMATES, AND ALLOTMENTS.

L1-1 Appropriations.

Appropriation bills.
Appropriations and funds.
Budget.
Deficiency estimates.
Digest of Appropriations.
Emergency funds.
Estimates for appropriations.
Liabilities against appropriations.
Reimbursement of appropriations.
Revision of appropriations.
Statement of expenditures under appropriations.
Surplus funds under appropriations.
Unexpended balances on appropriations.
Working funds.

L1-2 Allotment of appropriations.

Allotments of appropriations for special purposes.
Allotments of appropriations to yards.
Allotments in general.
Contingent allotments.
Quarterly money allowance to vessels.
Requisition for allotments.
Requisitions for funds.
Statements of expenditures under allotments.
Surplus funds under allotments.
Transfer of funds.
Unexpended balances on allotments.

Correspondence on appropriations can be subdivided to suit individual needs by:

a. Addition of fiscal year involved.
b. By using the appropriation numbers issued yearly by the Bureau of Supplies and Accounts for accounting purposes.

L2 SPECIFICATIONS.

L2-1 Specifications.

Adherence to specifications.
Changes in specifications.
Classification.
Design,
Description of material (specifications).
Illustrations.
Sizes (specifications).
Specifications as to quality.
Standard specifications.

L2-2 Drawings, blueprints, plans.

Blueprints.
Diagrams.
Drafting-room forms.
Drawings,
Plans.

L2-3 Molds, patterns. (For ship's pattern and molds, see S5.)

Models.
Molds.
Patterns.

--56--

L2-4 Standards, etc.

Measurements.
Standard (such as weights and measures).
Standardization of material.
Weights.
(See also S29 for ship group.)

L2-5 Building codes.

L3 ADVERTISING.

Authority for.
Methods.
Mediums.
Posters.
Publications, circulars, etc.

L4 PURCHASING.

L4-1 Firms.

Acceptable list.
Bradstreet's and Dun's reports.
Business standing of contractors.
Catalogues of firms.
Contractors.
Debarment of bidders.
Defaulting contractors.
Foreign firms.
List of offers of manufacturers.
Mailing list of bidders.
Manufacturers.
Offers by firms not under regular bids.
Offers of services, plants, material, etc. (other than
individual).
Regular dealers (purchasing of material).
Subcontractor.
Trading list.

L4-2 Schedules, proposals, bids, and awards.

Acceptance of bids.
Acceptance of bids received after time of opening.
Acceptance of material at reduced price.
Authority to purchase.
Awards on bids.
Bids.
Bids in excess of estimates.
Bids forwarded for approval prior to awards.
Bids, manner of making awards on.
Bids on proposals.
Bidders' data.
Bidders' requests for return of guaranty.
Bidding through agents.
Competition between bidders.
Complaints regarding proposals.
Consolidation of purchases.
Delayed awards on bids.
Direct bidding.
Errors in bids.
Estimates based on prevailing market prices.
Guaranties on proposals.
Informal bids.

--57--

Instructions for bidders.
Navy purchasing principles.
Opening of bids.
Preparation of schedules (purchasing).
Prices and price lists.
Price fixing on articles to be purchased.
Principles and regulations governing purchasing.
Proposals (purchasing).
Proprietary articles, methods of purchase of.
Purchasing agencies.
Circular of requirements.
Samples submitted on bids.
Schedules (purchasing).
Standard samples.
Substitutes.
Waiving competition on proposals.

L4-3 Contracts and other orders.

Adjustments under contracts.
Adjustments under cost-plus contracts.
Advances of materials.
Agreements (contracts).
Approval of purchase orders.
Bonus for speeding production.
Bribery in contracts (see P13-1).
Bureau orders.
Cancellation of contracts.
Charters.
Completion of.
Completion of contract.
Completion dates.
Constructional period.
Contingent fees under contracts.
Contracts.
Contracts, copies of.
Contracts, forms of.
Contracts, handling of.
Contracts, preparation of.
Cost-plus contracts.
Cost-plus contracts, material.
Cost-plus contracts, ship.
Decisions and rulings under contracts.
Deeds.
Division of contract price.
Emergency purchases.
Extensions granted on contracts.
Instructions relative to compliance or noncompliance with contract terms.
Lease and rentals.
Methods of purchase of material for special purposes.
Modification of Navy orders.
Navy orders (purchasing).
Options.
Orders for deliveries.
Penalties.
Principles for cancellation of contracts.
Priority orders (purchasing).

--58--

Purchases under general supply schedule contracts.
Purchase of material abroad.
Purchase on account of defaulting contractors.
Release from purchase.
Bequest for copies of contracts.
Revision of contracts.
Rules for drawing up contracts.
Special contracts.
Supplementary contracts.

This classification is furnished for instructions, etc., on the method of making purchases. Correspondence on a schedule, proposal, etc., will be classified under the particular schedule, proposal, etc., in question. Correspondence on individual schedules may be numbered by using the latter "S" and schedule number. Correspondence on individual contracts are numbered and may be filed according to the official designation and contract number of the activity under whose jurisdiction the contract is awarded. Example:

NOd-2085, Departmental contract 2085.
NORD-2S5, Bureau of Ordnance contract 285.
NOs-66230, Bureau of Supplies and Accounts contract 66230.
NOy-3090, Bureau of Yards and Docks contract 3090.
N14OS-86450, Navy Purchasing Office, New York contract 86450.
N1568-37590, Aircraft Factory, Philadelphia Pa. contract 37590.

L5 INSPECTION AND TESTS.

L5-1 Inspection of materials.

After delivery.
Analyses (chemical, etc.).
Before delivery.
Defective material.
Defective workmanship.
Inspection of vessels. (See S3.)
Inspection tests.
Waivers of requirements.

L5-2 Tests, suitability (material not under purchase).

Experiments.
Laboratory tests.
Service tests.
Shock tests.
Simulative tests.
Special apparatus and arrangements for making test.

L5-3 Inspection of real property.

L5-4 Inspections of operations and personnel, shore establishments.

L6 PAYMENTS, RECEIPTS, AND DELIVERIES.

L6-1 Deliveries and receipts.

Acceptance of deliveries.
Advance deliveries.

--59--

Checkages.
Delays in deliveries and receipts.
Deliveries.
Excess deliveries.
Exemption from deliveries.
Expediting deliveries.
Failure in making deliveries.
Guarantee period.
Illegal deliveries and receipts. (See par. 13-1.)
Outfitting period, new ships.
Partial deliveries.
Prompt deliveries.
Receipts.
Rejection of deliveries.
Releases.
Shortage of deliveries.

L6-2 Disbursing.

Authorization for payments.
Advance of money to contractors.
Bad debts.
Bills.
Bills, lost.
Bills payable.
Bills receivable.
Bills, unpaid.
Carrying charges.
Cash advances.
Certificates on dealers' bills.
Claims and compensation.
Collections.
Corrected public bills.
Credits.
Deferred payment (labor and material).
Delays in payments.
Disbursements.
Discount for cash, contractors' bills.
Illegal payments.
Liquidated and unliquidated damages, payment of.
Liquidation.
Overpayments and receipts therefor.
Partial payments.
Payments.
Payments on public bills.
Penalties.
Preparation payments.
Preparation of public bills.
Priorities (payments).
Progress payments.
Public bills.
Public vouchers.
Refunds.
Reimbursements.
Reservations.
Vouchers.
Vouchers, abstract of.
Warrants (authority for making payments).