Article View: sci.aeronautics
Article #642Re: TAIL ROTORS
From: Peter Gale
Date: Thu, 17 Dec 1992 04:32
Date: Thu, 17 Dec 1992 04:32
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tjgerman@53iss6.Waterloo.NCR.COM (Trevor German) writes: > I am an engineer and think I understand all the reasons why helos > have tail rotors, however, it seems to me that they may not be > as nessecary as they appear. Try the Sikorsky ABC aircraft, Kaman's, Russian machines, MDHC's MDX Explorer (1st flight this week?)... > these are complicated and expensive. Why not have a higher RPM > ducted vertical fan driven through a gearbox on the main shaft > pumping air down under the craft. The design of the fan should be > done in a way that makes it very viscous, that is, a lot of torque > required to move air. In otherwords a power plant just to generate drag?... > This may have already been tried, or maybe I am missing something Then again maybe just hold the aircraft up with a skyhook. :-) -- Peter Gale | Ph: 61 2 330-1686 | Sydney Senior Systems Programmer | gale@socs.uts.edu.au | Australia School of Computing Sciences | Fax: 61 2 330-1807 | --------- University of Technology, Sydney | --------------------------------
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Newsgroups: sci.aeronautics Path: arc1-ca.pugleaf.net!sparky!uunet!munnari.oz.au!metro!socs.uts.edu.au!harfang!gale From: gale@socs.uts.edu.au (Peter Gale) Subject: Re: TAIL ROTORS Message-ID: <gale.724566766@harfang> Sender: news@socs.uts.edu.au Organization: Computing Sciences, Uni of Technology, Sydney. References: <10299@ncrwat.Waterloo.NCR.COM> Date: 17 Dec 92 04:32:46 GMT Lines: 25