Design and testing of a caseless solid-fuel integral-rocket ramjet engine for use in small tactical missiles.

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Author
Fruge, Keith J.
Date
1991-09Advisor
Netzer, David W.
Second Reader
Natzer, D.W.
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Show full item recordAbstract
An investigation was conducted to determine the feasibility of a low-cost, caseless,
solid-fuel integral-rocket ramjet (IRSFRJ) that has no ejecta. Analytical design of a ramjet
powered air-to-ground missile capable of being fired from a remotely piloted vehicle or
helicopter was accomplished using current JANNAF and Air Force computer codes. The
results showed that an IRSFRJ powered missile can exceed the velocity and range of
current systems by more than a two to one ratio, without an increase in missile length and
weight. A caseless IRSFRJ with a non-ejecting port cover was designed and tested. The
experimental results of the static tests showed that a low-cost, caseless IRSFRJ with a nonejecting
port cover is a viable design. Rocket-ramjet transition was demonstrated and
ramjet ignition was found to be insensitive to the booster tail-off to air-injection timing
sequence.
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