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From: deichman@cod.nosc.mil (Shane D. Deichman)
Newsgroups: sci.military
Subject: Re: Scramjets
Summary: Ramjets and Pulse jets too!
Keywords: What are they
Message-ID: <1990Nov21.222203.20991@cbnews.att.com>
Date: 21 Nov 90 22:22:03 GMT
References: <1990Nov20.021943.27530@cbnews.att.com>
Sender: military@cbnews.att.com (William B. Thacker)
Organization: Naval Ocean Systems Center, San Diego
Lines: 38
Approved: military@att.att.com



From: deichman@cod.nosc.mil (Shane D. Deichman)

O.K., for all you wanna-be jet jockeys out there in NETland,
here's a short compilation of some of the different forms of
jet propulsion:

Ramjet -- A jet engine that propels aircraft by igniting fuel
with air taken and compressed by the engine in a fashion that
produces greater exhaust than intake velocity.  You have to 
be travelling supersonically for the ramjet to work since it
uses the airspeed and momentum of the plane to compress the
intake air.

Scramjet ("S"upersonic "C"ombustion Ramjet) -- A ramjet engine
that burns fuel in the supersonic airstream produced by the
plane after it reaches supersonic speeds by conventional means.

Pulse jet -- A jet engine in which air intake and combustion
occur intermittently, producing periodic rapid bursts of thrust.


Anybody else want to add to this partial list?

-shane

"the Ayatollah of Rock-and-Rollah"


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