Accession Number : AD0696597

Title :   SELF-CONTAINED AUTOMATIC TRANSMITTING PACKAGE FOR LF SIGNALS: CONCEPT AND PRELIMINARY DESIGN FACTORS.

Descriptive Note : Instrumentation papers,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Lewis,E. A. ; Harvey,R. B. ; Fields,V. C. ; Harrison,R. B. ; Kalakowsky,C. B.

Report Date : AUG 1969

Pagination or Media Count : 41

Abstract : A novel method is described whereby a high altitude aircraft can send emergency low frequency messages by dropping an automatic device containing a parachute, antenna, transmitter, and power supply. The expected physical characteristics and performance are discussed on the basis of laboratory and field tests. Possibilities for deployment by rockets and balloons are also considered. (Author)

Descriptors :   (*AIRCRAFT, RADIO EQUIPMENT), (*RADIO TRANSMITTERS, DESIGN), CARGO PARACHUTES, PARACHUTE DESCENTS, AVIATION SAFETY, LOW FREQUENCY, AUTOMATIC, DIPOLE ANTENNAS, STORAGE BATTERIES, HIGH ALTITUDE, REELS, BRAKING, RELIABILITY(ELECTRONICS), PERFORMANCE(ENGINEERING), CONTAINERS, ROCKETS, BALLOONS

Subject Categories : Lighter-than-air Aircraft
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE