EXTENSION OF THE HIGH-SPEED FLIGHT ENVELOPE OF THE XH-51A COMPOUND HELICOPTER

Abstract

The report presents the results of a speed extension program on the compound version of the rigid-rotor XH-51A helicopter. The principle objective of the program was to investigate the flight characteristics of the compound helicopter with special emphasis on the areas of flying qualities, performance, structural loads, vibration, and maneuverability in the speed range of 200 to 230 knots true airspeed. All contract objectives were met or exceeded. The maximum level flight true airspeeds demonstrated, during this program, were 236 knots at sea level and 228 knots at a density altitude of 12,000 feet.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1965
Accession Number
AD0627372

Entities

People

  • Donald R. Wyrick

Organizations

  • Lockheed Martin

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircraft Equipment
  • Aircrafts
  • Airfoils
  • Airframes
  • Altitude
  • Animal Structures
  • Control Systems
  • Fixed Wing Aircraft
  • Flight Speeds
  • Helicopters
  • Horizontal Stabilizers
  • Mach Number
  • Measurement
  • Rotary Wing Aircraft
  • Sea Level
  • Spoilers
  • Stabilization Systems

Readers

  • Aviation Science / Aeronautics.
  • Control Systems Engineering.