Accession Number : AD0640596

Title :   VHF AND UHF HIGH-G TELEMETRY INSTRUMENTATION FOR HARP VEHICLES.

Descriptive Note : Memorandum rept.,

Corporate Author : BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD

Personal Author(s) : MERMAGEN,W. H. ; Cruickshank,W. J. ; Vrataric,F.

Report Date : MAY 1966

Pagination or Media Count : 34

Abstract : Telemetry systems capable of surviving gun-launched accelerations in the order of 60,000 g have been developed for the High Altitude Research Program (HARP). Such telemetry systems have been used to provide data on the flight dynamics of gun-launched vehicles as well as measurements of upper atmospheric phenomena. The results of measurements of electron densities and temperatures in the upper atmosphere are presented and discussed as examples of the data gathering capability of the HARP program. Vehicle roll rates and pitch-yaw frequencies have been measured during high altitude flights. The results are presented and some anomalous examples are discussed. It has been shown that the technique of using guns to launch instrumented payloads into the upper atmosphere is both practical and useful. Moreover, the inclusion of on-board instruments to observe the dynamical behavior of flight vehicles provides a useful tool for aerodynamic research in the real atmosphere. (Author)

Descriptors :   (*TELEMETER SYSTEMS, ROCKET ASSISTED PROJECTILES), GUN LAUNCHERS, HIGH ALTITUDE, VERY HIGH FREQUENCY, ACCELERATION, ULTRAHIGH FREQUENCY, RELIABILITY(ELECTRONICS), ATMOSPHERIC SOUNDING

Subject Categories : Atmospheric Physics
      Telemetry

Distribution Statement : APPROVED FOR PUBLIC RELEASE