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Online Library of Selected Images -- Picture Data

Photo #: S-584-168

"Preliminary Study # 3 ... Air Craft Carrier ... 34-3/4 knot", November 17, 1920

A preliminary design plan for an aircraft carrier for the Fiscal Year 1922 shipbuilding program (Preliminary Study # 3), prepared by the Bureau of Construction and Repair in response to draft characteristics provided by the General Board on 6 November 1920 in order for the Bureau to be able to discuss design tradeoffs at a planned General Board hearing. This version met all the draft characteristics save being one-quarter knot low on speed and having weak protection against torpedo attack. No ships were built to this concept, which was superseded by new designs in 1921 (see Photo # S-584-179.)
This plan provided sixteen 6-inch guns, electric drive machinery, and a speed of 34.75 knots in a ship 840 feet long on the waterline, 80 feet in beam on the waterline, and with a normal displacement of 34,500 tons.
Note: The original document was ink on paper (black on white). It was scanned in two parts, top and bottom, and reassembled digitally.

The original plan is in the 1911-1925 "Spring Styles Book".

U.S. Naval History and Heritage Command Photograph.

Online Image: 1489KB; 3985 x 2435 pixels


For separate images of this view's top and bottom sections, seen as they are in the original "Sping Styles Book", see:
  • Photo # S-584-168-A and
  • Photo # S-584-168-B
  • NOTES:

  • Click on the small photograph to prompt a larger view of the same image.

  • If you want other types reproductions than this digital image, see: "How to Obtain Photographic Reproductions."

  • To the best of our knowledge, the picture referenced here is in the Public Domain, and can therefore be freely downloaded and used for any purpose.

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    Reassembled image posted 3 September 2011
    Links added 19 January 2012