Pratt and Whitney Aircraft JT8D turbofan engine. performance improvement to offset rising fuel costs

Conference · Tue Jan 01 00:00:00 EST 1980 · SAE Aerospace Congr. Pap.; (United States)

OSTI ID:6256299

Fahle, R K

A Pratt and Whitney Aircraft Group program begun in 1978 has led to the development of retrofit kit packages and major engine modifications that will provide thrust-specific fuel consumption (TSFC) reductions of 2.1% for the JT8D-1 and -7 engines, 3.0% for the JT8D-9 engine, and 5.5% for the JT8D-15, -17, and -17R engines under cruise conditions, and comparable fuel savings under other conditions. The modifications being made will affect the fan, compressor, and turbine sections of the engines to improve component efficiency. The retrofit kits will be used on existing in-service engines; other modifications will be introduced in service during 1981 and 1982. Fuel savings per engine per year could range from 27,000 to 91,000 gal, and fleet savings could amount to several hundred million gallons per year.

• Research Organization: Pratt and Whitney Aircraft Group
• OSTI ID: 6256299
• Report Number(s): CONF-801051-
• Journal Information: SAE Aerospace Congr. Pap.; (United States), Vol. 801117; Conference: 75. SAE anniversary aerospace congress, Los Angeles, CA, USA, 13 Oct 1980
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
AIRCRAFT
ENGINES
DESIGN
ENERGY EFFICIENCY
FUEL CONSUMPTION
MODIFICATIONS
BLOWERS
COMPRESSORS
ENERGY CONSERVATION
FUEL ECONOMY
TURBINES
EFFICIENCY
ENERGY CONSUMPTION
MACHINERY
TURBOMACHINERY
330103* - Internal Combustion Engines- Turbine
320201 - Energy Conservation
Consumption
& Utilization- Transportation- Air & Aerospace