A Flight Investigation of Various Stability Augmentation Systems for a Jet-Lift V/STOL Aircraft (Hawker-Siddeley P1127) Using an Airborne Simulator

Abstract

A flight investigation of various stability augmentation systems for jet-lift V/STOL aircraft, using a variable stability helicopter, is reported. The main emphasis was placed on overcoming the directional divergence due to the unstable weathercock stability that occurs at low airspeeds, but short investigations of a roll stabilizer to reduce the pilot work load, and a pitch stabilizing device to assist the pilot to maintain attitude in the presence of an angle-of-attack instability, were included. Both visual and a limited number of simulated instrument flights were conducted. After testing several stabilizing devices, it was concluded that a lateral accelerometer operating through the yaw reaction controls yielded directional handling qualities in the 'acceptable-satisfactory' region.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1968
Accession Number
AD0675766

Entities

People

  • D. M. Mcgregor

Organizations

  • National Research Council Canada

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Aircrafts
  • Analog Computers
  • Angular Acceleration
  • Center Of Gravity
  • Computers
  • Control Surfaces
  • Control Systems
  • Equations Of Motion
  • Flight
  • Flight Simulators
  • Helicopters
  • Instrument Flight
  • Short Takeoff Aircraft
  • Simulations
  • Simulators
  • Stabilization Systems
  • Transfer Functions

Readers

  • Aerospace Engineering
  • Aviation Science / Aeronautics.
  • Robotics and Automation.