Accession Number : AD0745557

Title :   An Evaluation of the Longitudinal Dynamic Stability of an Aircraft at Stall.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Frederiksen,John Thomas

Report Date : JUN 1972

Pagination or Media Count : 73

Abstract : The longitudinal stability of an aircraft at or near stall was examined using the digital computer as an experimental tool to solve the longitudinal equations of motion. A linear analysis determined the effect of lift curve slope variation. An investigation was made to identify the nonlinear lift curve variations needed to create the often observed 'rocking-chair' or 'porpoising' stall trait. The characteristics of this limit-cycle oscillation were examined. (Author)

Descriptors :   (*JET AIRCRAFT, *STALLING), PITCH(MOTION), ANGLE OF ATTACK, STABILITY, EQUATIONS OF MOTION, MATHEMATICAL MODELS, AERODYNAMIC CONTROL SURFACES, COMPUTER PROGRAMS, THESES

Subject Categories : Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE