Accession Number : AD0833270

Title :   SIMPLIFIED APPROXIMATIONS OF INTERFERENCE EFFECTS ON JET V/STOL AIRCRAFT.

Descriptive Note : Master's thesis,

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

Personal Author(s) : Archino, David Thomas

Report Date : MAR 1968

Pagination or Media Count : 96

Abstract : A semi-empirical approach is used to predict performance losses and pitching moments caused by interference effects on different aircraft planforms in hover and transition. Different aircraft planforms, and variation of the jet exhaust combinations make the problem of predicting interference effects difficult. The induced flow that causes the performance losses in hover is superimposed on the free stream flow to determine the interference effects on performance and pitch during transmission. An empirical factor is used to correct for the compressibility and temperature effects of the jet exhaust on the induced flow. Results are computed on the IBM 7094 computer. (Author)

Descriptors :   (*VERTICAL TAKEOFF AIRCRAFT, GROUND EFFECT), STABILITY, SHORT TAKEOFF AIRCRAFT, LIFT, HOVERING, PITCH(MOTION), COMPRESSIBLE FLOW, MATHEMATICAL PREDICTION, TEMPERATURE, AERODYNAMIC CONFIGURATIONS, APPROXIMATION(MATHEMATICS), CORRECTIONS, COMPUTER PROGRAMS, THESES.

Subject Categories : V/STOL
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE