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NASA NTRS · 19930090440

Some control considerations for ram-jet engines / c Seymour Himmel

Himmel, Seymour C
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Abstract

Control requirements were determined from calculated engine performance maps for a fixed-geometry ram jet of a configuration suitable for strategic supersonic missile propulsion. Several control schemes for attaining desired engine performance and for stabilizing missile flight velocity during cruise are presented. The advantages and disadvantages of each system are discussed.

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MISSILESENGINES, RAM-JET

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BibTeXRIS

Himmel, Seymour C. 1952-08-11. Some control considerations for ram-jet engines / c Seymour Himmel. https://ntrs.nasa.gov/citations/19930090440

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NASA NTRS1952

Effect of fuel density and heating value on ram-jet airplane range

An analytical investigation of the effects of fuel density and heating value on the cruising range of a ram-jet airplane was made. Results indicate that with present-day knowledge of chemical fuels, neither very high nor very low fuel densities have any advantages for long-range flight. Of the fuels investigated, the borohydrides and metallic boron have the greatest range potential. Aluminum and aluminum hydrocarbon slurries were inferior to pure hydrocarbon fuel and boron-hydrocarbon slurries were superior on a range basis. It was concluded that the practical difficulties associated with the use of liquid hydrogen fuel cannot be justified on a range basis.

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