Fuel conservation evaluation of US Army helicopters. Part 5. Ah-1S flight testing. Final report, 31 July-21 September 1982

Technical Report · Sat Jan 01 00:00:00 EST 1983

OSTI ID:5844114

Todd, L L; Savage, R T; Vincent, R L; Williams, R A; Downs, G T

The United States Army Aviation Engineering Flight Activity conducted level flight performance tests of the AH-1S (Prod) helicopter to provide data to determine the most fuel efficient operating conditions. Hot and cold weather test sites were used to extend the range of the advancing tip Mach number data to supplement existing AH-1S performance data. Preliminary analysis of non-dimensional data identifies the effects of compressibility on performance and shows a power penalty of as much as 6% at a high NR/theta. The power required characteristics determined by these tests can be combined with engine performance to determine the most fuel efficient operating conditions.

• Research Organization: Army Aviation Engineering Flight Activity, Edwards AFB, CA (USA)
• OSTI ID: 5844114
• Report Number(s): AD-A-128532/9
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
HELICOPTERS
FUEL CONSUMPTION
PERFORMANCE TESTING
DATA ACQUISITION
EFFICIENCY
ENERGY CONSERVATION
FLIGHT TESTING
MACH NUMBER
OPERATION
AIRCRAFT
ENERGY CONSUMPTION
TESTING
VELOCITY
320201* - Energy Conservation
Consumption
& Utilization- Transportation- Air & Aerospace