Accession Number : AD0772673

Title :   A Limited Analysis of an F-4C Aircraft with a High-Gain Control Augmentation System and Comparison with Flight Test Data,

Corporate Author : AERONAUTICAL SYSTEMS DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Kogler,Richard A.

Report Date : MAY 1973

Pagination or Media Count : 116

Abstract : A high-gain control augmentation system was designed by the Bendix Corporation to allow the pilot of a fighter aircraft to command the C* parameter through the longitudinal control stick. This system was installed in an F-4C aircraft and flight tested at the Air Force Flight Test Center. A theoretical analysis of the control augmentation system and airframe combination was performed for nine selected flight conditions. The results showed that the CAL 'thumbprint', MIL-F-8785B(ASG) and C* flying qualities criteria do not predict longitudinal flying qualities consistent with qualitative pilot ratings from flight test. Pilot comments indicated significant improvement in the longitudinal flying qualities of the F-4C with the C* command control augmentation system over the production aircraft. (Modified author abstract)

Descriptors :   *Jet fighters, *Flight control systems, Stability, Control systems, Structural response, Flight testing, Transfer functions, Specifications

Subject Categories : Attack and Fighter Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE