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Path: utzoo!watmath!clyde!burl!ulysses!allegra!oliveb!hplabsb!bl
From: bl@hplabsb.UUCP
Newsgroups: net.space
Subject: Re: Angular Momentum Cancelation
Message-ID: <3017@hplabsb.UUCP>
Date: Wed, 24-Jul-85 19:58:38 EDT
Article-I.D.: hplabsb.3017
Posted: Wed Jul 24 19:58:38 1985
Date-Received: Fri, 26-Jul-85 23:55:41 EDT
References: <3115@decwrl.UUCP> <15700023@uiucdcsb>
Organization: Hewlett Packard Labs, Palo Alto CA
Lines: 15

> 
> There is a Soviet helicopter. Its NATO designation is HORMONE (don't ask
> me why) which has two counter-rotating sets of blades and no tail rotor.
> 
> I do not know of any american helicopters that use this principle.
> 
> Apostolos Dollas
>         USENET:	...!{pur-ee,ihnp4}!uiucdcs!dollas 
>         ARPA:	dollas@uiuc.arpa

There was an article in "Sport Aviation" a couple of month ago about
a fellow (American) who built his own helicopter with counter-rotating
blades (and, of course, no tail rotor).  The rotors are on seperate
shafts that formed a narrow V.  The rotors (two blades each) inter-mesh as
they rotate.