Results 31 to 40 of about 8,114 (97)
Test stand performance of a convertible engine for advanced V/STOL and rotorcraft propulsion [PDF]
A variable inlet guide vane (VIGV) convertible engine that could be used to power future high-speed V/STOL and rotorcraft was tested on an outdoor stand.
Mcardle, Jack G.
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Turboprop cargo aircraft systems study [PDF]
The effects of using advanced turboprop propulsion systems to reduce the fuel consumption and direct operating costs of cargo aircraft were studied, and the impact of these systems on aircraft noise and noise prints around a terminal area was determined.
Hewell, J. G., Jr. +5 more
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Advanced turboprop technology development [PDF]
The efficiency of high-speed turboprop propulsion systems is considered with emphasis on fuel savings. Specific topics discussed include: (1) high efficiency and low noise of propeller design; (2) fuselage noise attenuation; (3) propeller and gear box ...
Bencze, D. P. +2 more
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Multiple Application Propfan Study (MAPS): Advanced tactical transport [PDF]
This study was conducted to ascertain potential benefits of a propfan propulsion system application to a blended wing/body military tactical transport. Based on a design cruise Mach no.
Liebeck, R. H. +6 more
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Multiple-Purpose Subsonic Naval Aircraft (MPSNA): Multiple Application Propfan Study (MAPS) [PDF]
Study requirements, assumptions and guidelines were identified regarding carrier suitability, aircraft missions, technology availability, and propulsion considerations. Conceptual designs were executed for two missions, a full multimission aircraft and a
Engelbeck, R. M. +4 more
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Altitude calibration of an F100, S/N P680063, turbofan engine [PDF]
An airflow and thrust calibration of an F100 engine was conducted in coordination with a flight test program to study airframe-propulsion system integration characteristics of turbofan-powered high-performance aircraft.
Biesiadny, T. J. +2 more
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NASA Quiet Clean General Aviation Turbofan (QCGAT) program status [PDF]
The suitability of large engine technology to reduce noise, emissions, and fuel consumption of small turbine engines and develop new technology where required is determined.
Bresnahan, D. L., Sievers, G. K.
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Feasibility of V/STOL concepts for short-haul transport aircraft [PDF]
Feasibility of V/STOL concepts for short-haul transport ...
Fry, B. L., Zabinsky, J. M.
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Study of small turbofan engines applicable to general-aviation aircraft [PDF]
The applicability of small turbofan engines to general aviation aircraft is discussed. The engine and engine/airplane performance, weight, size, and cost interrelationships are examined. The effects of specific engine noise constraints are evaluated. The
Alsworth, C. C. +2 more
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A remote augmentor lift system with a turbine bypass engine [PDF]
Two supersonic vertical takeoff or landing (VTOL) aircraft engine types, a conventional medium bypass ratio turbofan, and a turbine bypass turbojet were studied. The aircraft assumed was a clipped delta wing with canard configuration.
Fishbach, L. H., Franciscus, L. C.
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