Evaluation of UH-1H Hover Performance Degradation Caused by Rotor Icing

Hover icing tests were conducted with a UH-1H helicopter. The rotor blade ice shapes obtained in the Canadian National Research Council Icing Spray Rig were documented using steroscopic photography, silicone molds, and cross- section tracings. Power required data were also obtained in an attempt to...

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Bibliographic Details
Main Authors: Abbott, W Y, Belte, D, Williams, R A, Stellar, F W
Other Authors: ARMY AVIATION RESEARCH AND DEVELOPMENT COMMAND ST LOUIS MO
Format: Text
Language:English
Published: 1983
Subjects:
Helicopters
Snow
Ice and Permafrost
*HOVERING
*ICE FORMATION
*ROTOR BLADES(ROTARY WINGS)
COLD WEATHER TESTS
CROSS SECTIONS
DEGRADATION
FLIGHT TESTING
HELICOPTER ROTORS
ICE
LOW VELOCITY
MOLDING TECHNIQUES
SHAPE
SPRAYS
STEREOPHOTOGRAPHY
H-1 AIRCRAFT
UH-1H AIRCRAFT
LPN-USAAEFA-82-12
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA141252
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA141252
Description
Summary:Hover icing tests were conducted with a UH-1H helicopter. The rotor blade ice shapes obtained in the Canadian National Research Council Icing Spray Rig were documented using steroscopic photography, silicone molds, and cross- section tracings. Power required data were also obtained in an attempt to define the rotor performance degradation caused by icing. A summary of the test effort and ice shape documentation is presented in this report. Additional low-speed performance tests were performed and the results presented.

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