ANALYSIS OF A PROGRAMMED THROTTLE POWER CONTROL FOR A TYPICAL PULSE-JET HELICOPTER

Abstract

An analysis was made of the steady-state characteristics and transient behavior of the XH-26 helicopter with a programmed throttle control during 2 severe maneuvers: a pull-up to hovering from high-speed level flight and a pull-up to hovering from a steady descent. During these severe maneuvers, the rotor speed remained within -15 to +10% of the initial value with no trim control by the pilot, provided the fuel system time lag was 0.5 sec or less. This time lag was considered achievable. The programmed throttle control was concluded to act substantially as a rotor governor in maintaining the rotor speed within prescribed limits and to reduce considerably the pilot's task of coordination between collective pitch and throttle. (See also AD-16561)

Document Details

Document Type
Technical Report
Publication Date
Jun 15, 1953
Accession Number
AD0016562

Entities

People

  • L.r. Gutstadt

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Flight
  • Fuel Systems
  • Helicopters
  • Hovering
  • Level Flight
  • Maneuvers
  • Speed Regulators
  • Steady State

Fields of Study

  • Engineering
  • Physics

Readers

  • Aerospace Engineering
  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience