Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site dciem.UUCP Path: utzoo!dciem!king From: king@dciem.UUCP (Stephen King) Newsgroups: net.space Subject: Re: Angular Momentum Cancelation Message-ID: <1640@dciem.UUCP> Date: Thu, 18-Jul-85 09:23:14 EDT Article-I.D.: dciem.1640 Posted: Thu Jul 18 09:23:14 1985 Date-Received: Thu, 18-Jul-85 11:50:28 EDT References:Reply-To: king@dciem.UUCP (Stephen ) Organization: D.C.I.E.M., Toronto, Canada Lines: 7 Summary: -=-=-=-=-=-=-=-= I believe that the Soviet helicopter 'Hind' uses two counter-rotating sets of blades mounted coaxially, but, unless I'm mistaken, it also has a tail rotor for controlling yaw. Unlike film spools, however, the helicopter blades will not change in mass as the turn. -=-=-= sjk.