SCR-270-D Mobile Long Wave Aircraft Warning Set

DESCRIPTION	Six-vehicle mobile, long wave early warning aircraft detector. Azimuth and range supplied. Set is equipped with "A" scope.
USES	To establish a screen of warning which provides information of approaching aircraft as early as possible but with a sacrifice of accuracy in range, azimuth and elevation. IFF equipment RC-150 is used.
PERFORMANCE AND SITING:	Maximum range on a single bomber flying at indicated heights, when set is on a flat sea level site: Altitude, feet 1000 5000 20,000 25,000 Range, miles 20 50 100 110 Set should be sited at a height between 100' and 1000' above an unobstructed reflecting surface.
TRANSPORTABILITY	Complete set is carried in 6 vehicles, the largest of which measures 30'4" x 9'10" x 8'. Total weight of shipment is 101,790 lbs; total volume 11,485 cu. ft.
INSTALLATION	Operates from trucks in which mounted. Can be placed in operation about 6 hours after arrival at site.
PERSONNEL	Seven men comprise operating crew. For 24 hour operation about 50 men are required to run radar, communication radio, and camp.
POWER	15.3 KW, supplied by PE-74, 25 KVA gasoline-driven generator, having fixed consumption of 4 gal. per hour, non-leaded gasoline.

Source