Accession Number : AD0833396

Title :   THE APPROXIMATE LONGITUDINAL STABILITY DERIVATIVES OF A VECTORED THRUST VTOL.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Winters, Charles P.

Report Date : MAR 1968

Pagination or Media Count : 153

Abstract : The objective of this study was to investigate the stability derivatives and the stability of the vectored thrust P-1127 airplane. Expressions were derived for the derivatives. The performance, derivatives and stability were found for both an accelerating and nonaccelerating transition from hover to conventional flight. The results of the accelerating transition were compared to values available from Hawker Siddeley. Both transitions were unstable for many airspeeds but the times to double amplitude were such that a pilot could control the airplane. (Author)

Descriptors :   (*VERTICAL TAKEOFF AIRCRAFT, AERODYNAMIC CHARACTERISTICS), (*JET FIGHTERS, STABILITY), SUPERSONIC AIRCRAFT, PITCH(MOTION), THRUST, PERFORMANCE(ENGINEERING), LIFT, ACCELERATION, HOVERING, EQUATIONS OF MOTION, DRAG, COMPUTER PROGRAMS, NONLINEAR SYSTEMS, DOWNWASH, THRUST, WEIGHT, ANGLE OF ATTACK, THESES, MATHEMATICAL ANALYSIS.

Subject Categories : Attack and Fighter Aircraft
      V/STOL
      Numerical Mathematics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE