Anti-Aircraft Fire Control Sets

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SCR-547 Mobile Microwave radar-Optical Height Finder

SCR-547
SCR-547

DESCRIPTION: Mobile microwave radar-optical height finder. (Slant range supplied by radar; azimuth and angular height by optical tracking.) Set consists of antenna trailer, tractor, and spare parts truck. Early models also include a power van.
USES: To supply slant range or altitude to Antiaircraft Artillery fire control instruments.
PERFORMANCE
AND SITING:
Maximum range (limited by data transmission system), 25,000 yds. Useful range is generally limited by visibility. Minimum range, 300 yds. Average range error, ± 25 yds. Altitude limits, 300 to 10,000 yds. Set should be sited for maximum visibility.
TRANSPORTABILITY: Set is transported in vehicles, the largest of which weighs 7.7 tons and measures 8' x 10' x 211/2'. Total weight of set without power van is 16.6 tons; with power van, 24.3 tons.
INSTALLATION: Five trained men can set up and synchronize the equipment with associated director in 20 minutes.
PERSONNEL: Three operators and a chief radar Operator are minimum requirement. When power van is used, additional personnel is needed.
POWER: Early models use power from van-mounted engine-driven generator, consuming 1 gal. gas per hour. Later models receive power from Antiaircraft Gun Battery power plant, the peak power required being about 3.5 KVA, single phase.

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SCR-545 Mobile Long Wave Aircraft Search and Microwave AA Fire Control Set

SCR-545-A
SCR-545-A

DESCRIPTION: Mobile long wave aircraft search and microwave AA gun-laying. Set consists of trailer and prime-mover carrying power plant. One spare parts truck furnished for each antiaircraft gun battalion. Provides present azimuth, angular height, and slant range. Operates with IFF equipment RC-145.
USES: To search for targets and furnish position data for AAAIS. Transmits necessary present position data for all antiaircraft gun directors. May also be used as radar range-finder, with separate visual determination of azimuth and angular height.
PERFORMANCE
AND SITING:
Maximum reliable range, 50,000 yds. Minimum range, 500 yds. Average range error, 25 yds. Average azimuth and angular height error, 3 mils. If no interference exists, set should be sited for maximum visibility.
TRANSPORTABILITY: Set is carried in vehicles. Excluding spare parts truck they weigh a total of 27 tons, and occupy 3840 cu. ft. Largest vehicle measures 81/3' x 101/4' x 243/4'. Spare parts truck (supplied with every 4 sets) weighs 8 tons.
INSTALLATION: Operates from vehicles in which mounted. SCR-545 can be set up, oriented, and synchronized with associated equipment in 1 hour, using a crew of 9 trained men.
PERSONNEL: Four operators and a chief Radar Operator are minimum requirement.
POWER: Peak power required is approximately 15 KVA. Supplied by gasoline engine driven generator, consuming 5 gal. per hour.

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SCR-584 Mobile Microwave Anti-Aircraft Fire Control Set

SCR-584 With Gun Battery
SCR-584 With Gun Battery

DESCRIPTION: Mobile medium-range microwave Antiaircraft Artillery gun-laying set, consisting of semi-trailer and 4-ton tractor. One spare parts truck is furnished to each AA gun battery. Supplies present azimuth, angular height and slant range or altitude. Operates with IFF equipment RC-184.
USES: To search for targets and furnish position data for AAAIS. Transmits necessary present position data for all long-range AA gun directors. May also be used as radar range or height finder with separate visual determination of azimuth and angular height.
PERFORMANCE
AND SITING:
Maximum reliable range, 50,000 yds. Minimum range, 500 yds. Average range error, 25 yds. Average azimuth and angular height error, 3 mils. Set should be located for maximum visibility.
TRANSPORTABILITY: Set is transported in vehicles. Excluding spare parts truck, set weighs a total of 15 tons and occupies 2770 cu. ft. Largest vehicle measures 8' x 101/2' x 191/2'. Spare parts truck (supplied with every 4 sets) weighs 7 tons.
INSTALLATION: SCR-584 can be set up, oriented and synchronized with associated equipment in 30 minutes, using crew of 9 trained men.
PERSONNEL: Two operators and Chief Radar Operator are minimum requirement.
POWER: Required peak power of about 12 KVA, 3 phase, is supplied by Gun Battery power plant.

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