Rotorcraft convertible engine study [PDF]
The objective of the Rotorcraft Convertible Engine Study was to define future research and technology effort required for commercial development by 1988 of convertible fan/shaft gas turbine engines for unconventional rotorcraft transports. Two rotorcraft
Earle, R. V., Gill, J. C., Mar, H. M.
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Effect of afterburner lights and inlet unstarts on a mixed compression inlet turbofan engine operating at Mach 2.5 [PDF]
Data are presented to show the response of an uncontrolled inlet to afterburner lightoff disturbances when a mixed-compression inlet is coupled to a turbofan engine.
Batterton, P. G. +2 more
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Impact and promise of NASA aeropropulsion technology [PDF]
The aeropropulsion industry in the U.S. has established an enviable record of leading the world in aeropropulsion for commercial and military aircraft.
Bowditch, David N., Saunders, Neal T.
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Measurement of gaseous emissions from a turbofan engine at simulated altitude conditions [PDF]
Gaseous emission from a TFE 731-2 turbofan engine were measured over a range of fuel-air ratios from idle to full power at simulated from near sea level to 13,200 m.
Biaglow, J. A., Diehl, L. A.
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Measured and predicted noise of the Avco-Lycoming YF-102 turbofan noise [PDF]
Acoustic testing of the AVCO-Lycoming YF-102 turbofan engine was done on a static test stand in support of the quiet short-haul research aircraft acoustic design.
Clark, B. J., Homyak, L., Mcardle, J. G.
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Advanced General Aviation Turbine Engine (GATE) study [PDF]
The small engine technology requirements suitable for general aviation service in the 1987 to 1988 time frame were defined. The market analysis showed potential United States engines sales of 31,500 per year providing that the turbine engine sales price ...
Benstein, E. H., Smith, R.
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Jet aircraft emissions during cruise: Present and future [PDF]
Forecasts of engine exhaust emissions that may be practicably achievable for future commercial aircraft operating at high altitude cruise conditions are compared to cruise emission for present day aircraft.
Grobman, J. S.
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Design of aircraft turbine fan drive gear transmission system [PDF]
The following basic types of gear reduction concepts were studied as being feasible power train systems for a low-bypass-ratio, single-spool, geared turbofan engine for general aircraft use: (1) single-stage external-internal reduction, (2) gears (offset
Dent, E., Hirsch, R. A., Peterson, V. W.
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HYTESS 2: A Hypothetical Turbofan Engine Simplified Simulation with multivariable control and sensor analytical redundancy [PDF]
A hypothetical turbofan engine simplified simulation with a multivariable control and sensor failure detection, isolation, and accommodation logic (HYTESS II) is presented.
Merrill, W. C.
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H2-fueled high-bypass turbofan [PDF]
The study developed preliminary design concepts for the exploitation of the properties of LH2 in a turbofan engine intended for air transport use, and showed the benefits which accrue in reduction of aircraf direct operating cost. Design concepts for the
Riple, J. C.
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