Accession Number : AD0276569

Title :   TRACKING TESTS WITH SPERRY HELICOPTER FIRE CONTROL SYSTEM MOUNTED IN AN H21 HELICOPTER

Corporate Author : FRANKFORD ARSENAL PHILADELPHIA PA PITMAN-DUNN RESEARCH LABS

Personal Author(s) : HAINES,C.C.

Report Date : APR 1962

Pagination or Media Count : 1

Abstract : The testing of a stabilized sighting system mounted in an H21 helicopter is described. This sight is unique in that stabilization signals are generated by the navigational equipment already available in the airship. Tracking error under a wide variety of flight and target conditions averaged approximately 2 mils rms. It was concluded that while the hardware tested had certain deficiencies, particularly regarding vibration, the principle of obtaining signals from the aircraft navigational equipment for sight stabilization had promise. This is particularly true for systems where angular tracking accuracy of approximately 3 mils is acceptable. (Author)

Descriptors :   *AIRCRAFT FIRE CONTROL SYSTEMS, *OPTICAL SIGHTS, *OPTICAL TRACKING, FIRE CONTROL SYSTEMS, FLIGHT TESTING, HELICOPTERS, OPTICAL EQUIPMENT, RECOILLESS GUNS, TRACKING

Distribution Statement : APPROVED FOR PUBLIC RELEASE