JUH-1H Redesigned Pneumatic Boot Deicing System Flight Test Evaluation

The U.S. Army Aviation Engineering Flight Activity conducted an evaluation of the Pneumatic Boot Deicing System (PBDS) with two pneumatic deicer boot designs, referred to as second and third generation. The objective of the test was to conduct feasibility testing of the pneumatic system concept for...

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Bibliographic Details
Main Authors: Graham, Matthew S, Haworth, Loran A, Kimberly, Jack L
Other Authors: ARMY AVIATION ENGINEERING FLIGHT ACTIVITY EDWARDS AFB CA
Format: Text
Language:English
Published: 1987
Subjects:
Helicopters
Snow
Ice and Permafrost
*DEICING SYSTEMS
*ROTOR BLADES(ROTARY WINGS)
AIRCRAFT
BOOTS
ENVELOPE(SPACE)
FEASIBILITY STUDIES
FLIGHT TESTING
HANDLING
HELICOPTER ROTORS
HOVERING
ICE FORMATION
INFLIGHT
LEVEL FLIGHT
LOADS(FORCES)
PENALTIES
PERFORMANCE(ENGINEERING)
PNEUMATIC EQUIPMENT
QUALITY
RELIABILITY
STRUCTURAL PROPERTIES
SURVEYS
TEST AND EVALUATION
PBDS(PNEUMATIC BOOT DEICING SYSTEM)
JUH-1H AIRCRAFT
H-1 AIRCRAFT
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA194918
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA194918
Description
Summary:The U.S. Army Aviation Engineering Flight Activity conducted an evaluation of the Pneumatic Boot Deicing System (PBDS) with two pneumatic deicer boot designs, referred to as second and third generation. The objective of the test was to conduct feasibility testing of the pneumatic system concept for deicing helicopter rotor blades in forward flight, and to assess any changes to aircraft performance and handling qualities. Phase I consisted of a ground and inflight structural loads survey which established an operational envelope. Phase 2 consisted of forward flight testing in artificial and natural icing conditions of the second generation design only. Phase 3 consisted of limited artificial rain erosion tests of the second generation design. Phase 4 consisted of performance and handling qualities evaluation of the second generation design. Hover and level flight performance were greatly improved over the first generation, but a significant performance penalty still exists. Handling qualities were essentially unchanged from the standard UH-1H. Two unsatisfactory and six undesirable reliability and maintainability characteristics were identified.

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