Fuel Conservation Evaluation of US Army Helicopters. Part 5. AH-1S slight Testing

Abstract

The United States Army Aviation Engineering Flight Activity conducted level flight performance tests of the AH-1S (Prod) helicopter to provide data to determine the most fuel efficient operating conditions. Hot and cold weather test sites were used to extend the range of the advancing tip Mach number data to supplement existing AH-1S performance data. Preliminary analysis of non- dimensional data identifies the effects of compressibility on performance and shows a power penalty of as much as 6% at a high NR/theta. The power required characteristics determined by these tests can be combined with engine performance to determine the most fuel efficient operating conditions.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1983
Accession Number
ADA128532

Entities

People

  • Gary. T. Downs
  • Loren L. Todd
  • Richard L. Vincent
  • Richard T. Savage
  • Robert A. Williams

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Temperature
  • Aircrafts
  • Airframes
  • Army Aircraft
  • Army Aviation
  • Barometric Pressure
  • Engineering
  • Flight Testing
  • Helicopters
  • Mach Number
  • Magnetic Tape
  • Measurement
  • Performance Tests
  • Sea Level
  • Test And Evaluation
  • Test Methods
  • Turboshaft Engines

Readers

  • Aerospace Engineering