Results 61 to 70 of about 71,876 (215)
AerospaceThe present work demonstrates a comparative study of hydrogen fuel cells and combustion aircraft to investigate the potential of fuel cells as a visionary propulsion system for radically more sustainable medium- to long-range commercial aircraft.
Stanislav Karpuk +2 more
doaj +1 more source
Control of propulsion systems for supersonic cruise aircraft [PDF]
The propulsion control requirements of supersonic aircraft are presented. Integration of inlet, engine, and airframe controls is discussed. The application of recent control theory developments to propulsion control design is described. Control component
Drain, D. I., Hiller, K. W.
core +1 more source
Concept Evaluation of Radical Short–Medium-Range Aircraft with Turbo-Electric Propulsion
AerospaceAmbitious targets for the coming decades have been set for further reductions in aviation greenhouse gas emissions. Hybrid electric propulsion (HEP) concepts offer potential for the mitigation of these aviation emissions. To investigate this potential in
W. J. Vankan +4 more
doaj +1 more source
Supersonic STOVL propulsion technology program: An overview [PDF]
Planning activities are continuing between NASA, the DoD, and two foreign governments to develop the technology and to show the design capability by the mid-1990's for advanced, supersonic, short takeoff and vertical landing (STOVL) aircraft.
Batterton, Peter G., Blaha, Bernard J.
core +1 more source
NASTRAN applications to aircraft propulsion systems [PDF]
, 1975 The use of NASTRAN in propulsion system structural integration analysis is described. Computer support programs for modeling, substructuring, and plotting analysis results are discussed.
Beste, D. L., White, J. L.
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Propulsion opportunities for future commuter aircraft [PDF]
18th Joint Propulsion Conference, 1982 Circa 1990 propulsion improvement concepts are discussed for 1000 to 5000 SHP conventional turboprop powerplants including engines, gearboxes, and propellers. Cycle selection, power plant configurations and advanced technology elements are defined and evaluated using average stage length DOC for commuter aircraft as the primary merit criterion.
openaire +1 more source
The Altitude Wind Tunnel (AWT): A unique facility for propulsion system and adverse weather testing [PDF]
A need has arisen for a new wind tunnel facility with unique capabilities for testing propulsion systems and for conducting research in adverse weather conditions.
Chamberlin, R.
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The final design of a hypersonic, SCRAMjet research aircraft, which is to be dropped from a carrier plane, is considered. Topics such as propulsion systems, aerodynamics, component weight analysis, and aircraft design with waverider analyses are stressed
Ammon, Rob +7 more
core +1 more source
IMPAC: An Integrated Methodology for Propulsion and Airframe Control [PDF]
The National Aeronautics and Space Administration is actively involved in the development of enabling technologies that will lead towards aircraft with new/enhanced maneuver capabilities such as Short Take-Off Vertical Landing (STOVL) and high angle of ...
Garg, Sanjay +3 more
core +1 more source
Qualification needs for advanced integrated aircraft [PDF]
In an effort to achieve maximum aircraft performance, designers are integrating aircraft systems. The characteristics of aerodynamics, vehicle structure, and propulsion systems are being integrated and controlled through embedded, often flight critical ...
Mackall, D. A.
core +1 more source