Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!areyes!deano
From: deano@areyes.com (Dean Carpenter)
Newsgroups: comp.robotics
Subject: Re: Small Hovering Hobby Robots
Message-ID: <1991Jun19.164911.10552@areyes.com>
Date: 19 Jun 91 16:49:11 GMT
References: <00949D78.A594B600@vms.csd.mu.edu> <26776@ttidca.TTI.COM> <1991Jun14.204833.9470@watmath.waterloo.edu> <1991Jun19.054213.1250@km4ba.uucp>
Organization: Areyes, Inc.
Lines: 18

Did you ever consider a combination ground effect and nozzle approach ?  That
is, use an adjustable ground effect skirt, one that can constrict itself down
to a nozzle.  I have some vague notion of a device much like the old bulb
flash reflectors that could unfold from a pie shaped wedge to the full 
reflector, but obviously it would need to be more sophisticated than that.

Exactly how this thing could be constructed, heh heh, I leave up to you all.

Would the concept even work ?  Say the plenum chamber is 12 inches across in
ground effect mode, so thrust is pushing down over a wide area.  In nozzle
mode all that air whooshing down would be constricted through a 1 inch (say)
nozzle, much like a model rocket engine clay nozzle.

-- 
Dean Carpenter		uunet!areyes!deano		(203) 531-5007
Areyes, Inc.		deano@areyes.com

"Wherever you go, there you are" sayeth Buckaroo - across the Eighth Dimension