FLIGHT EVALUATION PROGRAM EARTH RATE DIRECTIONAL REFERENCE ID-551/APN-105

Abstract

Development of the ID-551/APN-105 Earth Rate Directional Reference (ERDR) is described. Two models were constructed. The prototype model differs from the developmental model in that there are only two units instead of four, due to improved packaging. Improvements of the electrical configuration, such as the use of twospeed integrators, were made in the prototype to improve the performance over that of the developmental model. Both systems were subjected to bench testing to determine compliance with specifications. A minimum flight test program was followed to further evaluate the system performance. Results of the flight test program were on the whole successful. Most problems were solved and the ERDR-Doppler system is capable of operating with the expected accuracies. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1961
Accession Number
AD0269917

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Directional
  • Doppler Systems
  • Integrators
  • Models
  • Packaging
  • Prototypes
  • Specifications

Readers

  • Geodesy
  • Software Engineering