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*DEICING SYSTEMS
2
AIRCRAFT
2
FLIGHT TESTING
2
HANDLING
Helicopters
2
Ice and Permafrost
2
LEVEL FLIGHT
2
LOADS(FORCES)
2
PERFORMANCE(ENGINEERING)
2
QUALITY
STRUCTURAL PROPERTIES
2
SURVEYS
2
Snow
2
TEST AND EVALUATION
*HELICOPTERS
1
*ROTOR BLADES(ROTARY WINGS)
1
ACTIVATION
1
AIRCRAFT ENGINES
1
AIRSPEED
1
AIRWORTHINESS
1
BOOTS
1
DYNAMIC RESPONSE
1
ENDURANCE(GENERAL)
1
ENVELOPE(SPACE)
1
FEASIBILITY STUDIES
1
FLIGHT
1
H-1 AIRCRAFT
1
HELICOPTER ROTORS
1
HOVERING
1
ICE FORMATION
1
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