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Path: utzoo!watmath!clyde!floyd!harpo!ulysses!allegra!karn
From: karn@allegra.UUCP (Phil Karn)
Newsgroups: net.space
Subject: Re: Oberth Wheels
Message-ID: <2383@allegra.UUCP>
Date: Thu, 5-Apr-84 18:52:55 EST
Article-I.D.: allegra.2383
Posted: Thu Apr  5 18:52:55 1984
Date-Received: Sat, 7-Apr-84 03:22:30 EST
References: <304@charm.UUCP>
Organization: Bell Communications Research, Inc
Lines: 7

Reaction wheels are indeed widely used in spacecraft that require
three-axis stabilization. Examples include Skylab, the NOAA TIROS-N
series of polar weather satellites, and the RCA Satcom geostationary
communications satellites.  They are combined with gas thrusters
or magnetic torquing systems to allow for momentum dumping when necessary.

Phil