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Performance and Operational Characteristics of a Python Turbine-propeller Engine at Simulated Altitude Conditions / Carl L. Meyer and Lavern A. JohnsonThe performance and operational characteristics of a Python turbine-propeller engine were investigated at simulated altitude conditions in the NACA Lewis altitude wind tunnel. In the performance phase, data were obtained over a range of engine speeds and exhaust nozzle areas at altitudes from 10,000 to 40,000 feet at a single cowl-inlet ram pressure ratio; independent control of engine speed and fuel flow was used to obtain a range of powers at each engine speed. Engine performance data obtained at a given altitude could not be used to predict performance accurately at other altitudes by use of the standard air pressure and temperature generalizing factors. At a given engine speed and turbine-inlet total temperature, a greater portion of the total available energy was converted to propulsive power as the altitude increased.
Document ID
19930086856
Document Type
Other
Authors
Meyer, Carl L
Johnson, Lavern A
Date Acquired
August 16, 2013
Publication Date
February 6, 1952
Report/Patent Number
NACA-RM-E51I14
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
ENGINES - ARMSTRONG-SIDDELY PYTHON TURBO-PROPELLER (BRIT )
WIND TUNNEL TESTS - LFPL - HIGH-ALTITUDE (20')
ENGINES, TURBO-PROPELLER - ALTITUDE TESTS
ENGINES, TURBO-PROPELLER

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