Artificial and Natural Icing Test of the YCH-47D.

Abstract

The YCH-47D helicopter icing test was conducted between 4 February and 28 March 1980. Twenty flights were conducted, seven in the artificial environment, eleven in natural icing and two flights in heavy snow. A total of 35 hours were flown with 17.4 hours in the icing environment. Testing was conducted at St. Paul, Minnesota, in two phases: (1) protected (the deice system operated automatically) in the artificial environment and (2) unprotected (the deice system in a standby status), both in the artificial and natural environment. The YCH-47D was evaluated at conditions varying from 0.1 to 1.5 gm/m cube liquid water content (LWC) and temperatures varying from -2 degrees C to -20 degrees C. Maximum time for an individual flight in the natural environment was 95 minutes at an average LWC of 0.2 gm/m cube and -10 degrees C.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1981
Accession Number
ADA122964

Entities

People

  • Charles F. Adam
  • Frame J. Bowers Iii
  • William Y. Abbott

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Airframes
  • Cameras
  • Control Systems
  • Detectors
  • Environment
  • Flight Crews
  • Ice Formation
  • Measurement
  • Oil Coolers
  • Photographic Equipment
  • Photographs
  • Pressure Gages
  • Radar Altimeters
  • Test And Evaluation
  • Turbines
  • Virtual Reality

Readers

  • Aerospace Engineering
  • Mathematics or Statistics
  • Polar and Arctic Studies