June 28, 1982

Propulsion

Powerplants of Next Century Studied

Propulsion

Engine Makers Improving Core Sections

Propulsion

Military Seeking Advanced Powerplant

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Propulsion

Powerplants of Next Century Studied

The U. S.’s two major engine manufacturers, General Electric and Pratt & Whitney, are evaluating a broad range of emerging technology for application to advanced turboprop and turbofan engines with sufficient performance flexibility to satisfy propulsion requirements that military and civilian users are beginning to define for the year 2000 and beyond.

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Propulsion

Engine Makers Improving Core Sections

New York—Both General Electric Co. and Pratt & Whitney Aircraft are testing new military and commercial high-pressure core sections that incorporate new blade shapes and materials, refined internal aerodynamics and advanced composite materials to increase engine durability, reliability and fuel economy.

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Propulsion

Military Seeking Advanced Powerplant

Washington—The Navy and Air Force are evaluating industry proposals for concept definition studies leading toward a mid-1980s advanced technology engine demonstration program. The engine demonstration program is aimed at providing a new technology centerline engine for advanced tactical fighters for each of the two services in the 1990s.

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Propulsion

Fuel Consumption, Reliability Key to Outlook for General Aviation

Reliability and considerations of both fuel type and decreased fuel consumption will spur the development of piston and turbine engines to be used in general aviation and commuter aircraft into the late 1980s. Trends are emerging in the development of the lower horsepower reciprocating engines used in general aviation aircraft that have been prompted not only by the price of aviation fuel but also by fuel availability in many areas.

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Propulsion

Congress’ Support Aids Propfan Work

Washington—Support in Congress for advanced turboprop propulsion is reviving National Aeronautics and Space Administration’s propfan program, which the Reagan Administration eliminated from the agency’s Fiscal 1983 budget request.

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Propulsion

Joint Efforts Spurring Rotary Engine Advances

Los Angeles—Evolving military helicopter requirements in the U. S. and Europe are spurring design definition, development and technology demonstration efforts on both sides of the Atlantic on a new generation of helicopter turbine engines to enter service over the next 10-12 years.

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Propulsion

Airframe Makers Eye New Turboprops

Propulsion for the 150-seat transport and engine advances required to improve existing products are the key short-term needs for U. S. airframe manufacturers, but some are eyeing with anticipation the fuel burn advantages promised by new-technology turboprop powerplants that may not be many years away.

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Propulsion

Shift Seen to Digital Electronic Control

The increasing complexity of aircraft propulsion to meet the demands of military users for higher performance and of civil users for greater fuel economy is accelerating the shift from long-used hydromechanical engine control systems to digital electronic systems.

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Propulsion

Suppliers Press Technology Advances

Suppliers of propulsion system materials and components are developing technology that engine manufacturers will rely upon to increase the performance and lower the cost of powerplants planned for the latter part of the decade as well as to improve those now entering service.
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Air Transport

Aeroflot Expanding International Service

Wide-body Il-86 operations are approaching routine after year of scheduled service between USSR, European points

June 211982 July 51982