Accession Number:

ADA023216

Title:

The Influence of Roll, Pitch, and Yaw Rate Perturbations on the Alpha-Beta Stability Envelope of the F-4D Aircraft.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1976-01-01

Pagination or Media Count:

106.0

Abstract:

A study was made of the influence of pitch, roll, and yaw rate perturbations on an alpha-beta stability envelope of the F-4D aircraft. The nonlinear equations of motion were integrated numerically and the motion analyzed for stability. The stability criteria were adapted from MIL-F-8785BASG, Military Specification - Flying Qualities of piloted Airplanes. Equilibrium conditions were perturbed and the stability analyses revealed two characteristic motions. The stable motion was a yaw divergence with a minor roll oscillation. Whereas the unstable motion was a divergence in roll. The aircraft appears to enter a steep, rolling dive.

Subject Categories:

  • Aerodynamics
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE