JTN-11 Exhaust Nozzle [electronic resource].
- Washington, D.C : United States. Energy Research and Development Administration, 1960.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- 3 pages : digital, PDF file
- Additional Creators:
- United States. Energy Research and Development Administration
United States. Department of Energy. Office of Scientific and Technical Information
- Recent studies of the JTN-11 engine have assumed that a two-position nozzle would be used. Two problems have been encountered in further study of the engine with this particular nozzle. These are as follows: (1) The maximum thrust capability of the engine operating on chemical fuel with afterburner not lit was found to be about 20% below that of the D-20 engine with a variable nozzle. It appears that a third positlon of the nozzle would be an acceptable solution to this problem. (2) The thrust produced at idle on radiator heat at low flight speeds is higher than is desirable for a landing approach even with the nozzle in its full open position. The idle thrust may be reduced by providing a fourth nozzle position; however, it appears that the complication of a special nozzle area for this condition Is not justified.
- Published through SciTech Connect.
Gaffin, W. O.
Pratt and Whitney Aircraft (United States)
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