LIMITING OF AIRCRAFT SPEED BY AUTOMATIC ENGINE THRUST CONTROL

Abstract

Four systems which vary engine power as airplane speed changes were studied. Three of the systems use a variable pitch propeller with manual control and a governor which maintains constant rpm by controlling throttle position. With the variable pitch propeller set at a fixed pitch, the power required to maintain constant rpm varies as air speed changes, thus the governor automatically changes power as air speed varies. The fourth system uses a conventional constant speed propeller and an air speed sensor system controls the engine throttle. All four systems, when compared to the conventional constant speed propeller - manual throttle system, will automatically limit speed build up in a dive. The systems automatically reduce power when air speed increases, thus much steeper dive angle and rate of descent is automatically allowed for the same forward speed. All four systems can be used for automatic power control in normal flying conditions.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1963
Accession Number
AD0613061

Entities

People

  • H. A. Slingsby

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Actuators
  • Aircraft Engines
  • Aircrafts
  • Airplanes
  • Airspeed
  • Center Of Gravity
  • Control Systems
  • Dynamic Response
  • Flight Speeds
  • Flight Testing
  • Human Factors Engineering
  • Landing Gear
  • Photographs
  • Pressure Switches
  • Propellers
  • Thrust Control
  • Variable Pitch Propellers

Fields of Study

  • Engineering

Readers

  • Aerodynamics.
  • Aerospace Engineering
  • Robotics and Automation.