Accession Number:

AD0901617

Title:

SST Technology Follow-on Program-Phase I. Laboratory Analysis of the SST Directional Electric Command and Stability System Component Failure Effects.

Descriptive Note:

Final rept. on Task 7,

Corporate Author:

BOEING COMMERCIAL AIRPLANE CO SEATTLE WA

Personal Author(s):

Report Date:

1972-07-01

Pagination or Media Count:

42.0

Abstract:

Results of laboratory tests performed to determine the component failure effects on the SST directional electric command and stability system ECSS are summarized. Two channels of breadboard electronics for the directional ECSS were developed and coupled into a hardware breadboard mini rig of the electric command EC servo. A simulated airframe was then used to determine component failure effects on the system. These were then separated into three categories. Results of laboratory test analyses indicate that the critical failure combinations are associated with the mode filters loss of damping term and loss of the EC servo position feedback command signal. Probability of these failure combinations was determined and a method proposed that would detect these failures for preflight and in-flight monitoring. Author

Subject Categories:

  • Civilian Aircraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE