Results 71 to 80 of about 17,697 (215)
Small Engine Component Technology (SECT) studies [PDF]
A study was conducted to identify component technology requirements for small, expendable gas turbine engines that would result in substantial improvements in performance and cost by the year 2000.
Harbour, L., Meyer, P. K.
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Turboprop Cargo Aircraft Systems study, phase 1 [PDF]
The effects of advanced propellers (propfan) on aircraft direct operating costs, fuel consumption, and noiseprints were determined. A comparison of three aircraft selected from the results with competitive turbofan aircraft shows that advanced turboprop ...
Hewell, J. G., Jr. +5 more
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Change of temperature field in the depending mixing chamber on the bypass ratio
Авіаційно-космічна техніка та технологіяThe mixing chamber of a turbofan jet engine with an additional turbofan unit is the object of this study. The subject of the research is the influence of the bypass ratio on the formation of the temperature field in the mixing chamber before the turbofan
Yurii Tereshchenko, Illia Yudin
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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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Hangkong gongcheng jinzhan, 2018 In order to improve the competitiveness, optimizing the fuel economy and competitiveness of civil turbofan engines is becoming the research highlights recently.
Xue Bingjing, Li Hualei, Tan Zhiyong
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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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NASA/GE quiet engine C acoustic test results [PDF]
The acoustic investigation and evaluation of the C propulsion turbofan engine are discussed. The engine was built as a part of the Quiet Engine Program.
Kazin, S. B., Pass, J. E.
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Energy efficient engine program contributions to aircraft fuel conservation [PDF]
Significant advances in high bypass turbofan technologies that enhance fuel efficiency have been demonstrated in the NASA Energy Efficient Engine Program.
Batterton, P. G.
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Analysis of temperature distribution in the annular mixing chamber of a gas turbine engine
Авіаційно-космічна техніка та технологіяThe object of this research was the mixing chamber of a turbofan engine. The subject of this study was the thermogasdynamic processes in the mixing chamber of the turbojet engine before the turbine of the turbofan stage.
Illia Yudin
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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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