Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!gatech!amdcad!military
From: wolit@mhuxd.att.com (Jan I Wolitzky)
Newsgroups: sci.military
Subject: Cruise missile engines
Message-ID: <27344@amdcad.AMD.COM>
Date: 19 Sep 89 06:40:48 GMT
References: <27295@amdcad.AMD.COM>
Sender: cdr@amdcad.AMD.COM
Organization: AT&T Bell Laboratories
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In article <27295@amdcad.AMD.COM>, mmm@cup.portal.com writes:

> BTW, I saw on TV some video of the assembly of a cruise missile.  One of the
> technicians was carrying around the engine for the missile.  The turbine
> looked to be about 2 1/2 feet in diameter.  What was surprising was the
> weight.  From the way the guy was holding it, I would guess this engine
> weighs about 25 pounds.

The engine used in the General Dynamics/Convair/McDonnell Douglas/USN
BGM-109 Tomahawk SLCM is the Williams International F107-WR-400
turbofan.  It's 12" in diameter, 36.9" long, and weighs 144 lbs.
The Boeing/USAF ALCM uses the F107-WR-100, which is 12" in diameter,
48.5" long, and weighs 146 lbs.

These engines are considerably smaller and lighter than the piston
engines used in light general aviation planes, and would give a plane
the size of, say, a Cessna 172 Skyhawk, the thrust-to-weight ratio
of a Learjet.  Can't wait till the next generation of cruise missiles,
or the next disarmament agreement, drives all these engines onto the
surplus market :-)  Come to think of it, whatever happened to the
engines in all those GLCMs dismantled under the INF Treaty?
-- 
Jan Wolitzky, AT&T Bell Labs, Murray Hill, NJ; 201 582-2998; mhuxd!wolit
(Affiliation given for identification purposes only)