Structural Loads Survey During Cold-Weather Operations.

To determine the effects of cold weather on the loads of dynamic components in the main and tail rotor systems of the UH-1H helicopter was the prime objective of the reported study. Accordingly, 18 hours of in-flight oscillograph data were recroded on these components while the helicopter flew at pr...

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Bibliographic Details
Main Authors: Cox,Terry L., Torres,Thomas A.
Other Authors: TECHNOLOGY INC DAYTON OHIO
Format: Text
Language:English
Published: 1975
Subjects:
Helicopters
*HELICOPTERS
*ARCTIC REGIONS
*COLD WEATHER TESTS
STRUCTURAL PROPERTIES
LOADS(FORCES)
ALASKA
HELICOPTER ROTORS
STRAIN GAGES
INFLIGHT
ENVIRONMENTAL TESTS
SHAFTS(MACHINE ELEMENTS)
ALTITUDE
ARMY AIRCRAFT
DYNAMIC TESTS
TAIL ROTORS
UH-1H aircraft
Cyclic boost tubes
H-1 aircraft
Fort Greely
Arctic
Alaska
Online Access:http://www.dtic.mil/docs/citations/ADA007091
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA007091
Description
Summary:To determine the effects of cold weather on the loads of dynamic components in the main and tail rotor systems of the UH-1H helicopter was the prime objective of the reported study. Accordingly, 18 hours of in-flight oscillograph data were recroded on these components while the helicopter flew at prescribed temperature-density altitude conditions in the arctic environment of Allen Army Airfield, Fort Greely, Alaska, during January and February of 1974. Equipped with strain gages, the instrumented components were the main and tail rotor blades, drag brace, scissors link, collective and cyclic boost tubes, and tail rotor shaft.

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