Fuel-conservation evaluation of US Army helicopters. Part 6. Performance calculator evaluation. Final report for period ending January 1981

Technical Report · Tue Jul 01 00:00:00 EDT 1986

OSTI ID:6234018

Dominick, F; Lockwood, R A

The US Army Aviation Engineering Flight Activity conducted an evaluation of Flight Management Calculator for the UH-1H. The calculator was a Hewlett-Packard HP-41CV. The performance calculator was evaluated for flight planning and in-flight use during 14 mission flights simulating operational conditions. The calculator was much easier to use in-flight than the operator's manual data. The calculator program needs improvement in the areas of pre-flight planning and execution speed. The mission flights demonstrated a 19% fuel saving using optimum over normal flight profiles in warm temperatures (15/sup 0/C above standard). Savings would be greater at colder temperatures because of increasing compressibility effects. Acceptable accuracy for individual aircraft under operational conditions may require a regressive analog model in which individual aircraft data are used to update the program. The performance data base for the UH-1H was expanded with level flight and hover data to thrust coefficients and Mach numbers to the practical limits of aircraft operation.

• Research Organization: Army Aviation Engineering Flight Activity, Edwards AFB, CA (USA)
• OSTI ID: 6234018
• Report Number(s): AD-A-181645/3/XAB; USAAEFA-81-01-6
• Resource Relation: Other Information: See also Part 5, AD-A128 532
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
HELICOPTERS
FUEL CONSUMPTION
US DOD
ACCURACY
CALCULATORS
HIGH TEMPERATURE
MACH NUMBER
MANUALS
OPERATION
PLANNING
AIRCRAFT
DOCUMENT TYPES
ENERGY CONSUMPTION
NATIONAL ORGANIZATIONS
US ORGANIZATIONS
VELOCITY
320201* - Energy Conservation
Consumption
& Utilization- Transportation- Air & Aerospace