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From: fiddler@concertina.Eng.Sun.COM (Steve Hix)
Newsgroups: sci.military
Subject: Re: Soviet Wing-in-Ground Effect Machine?
Message-ID: <1990Jul31.023340.20711@cbnews.att.com>
Date: 31 Jul 90 02:33:40 GMT
References: <1990Jul23.203523.8039@cbnews.att.com> <1990Jul25.004935.7662@cbnews.att.com>
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From: fiddler@concertina.Eng.Sun.COM (Steve Hix)

In article <1990Jul25.004935.7662@cbnews.att.com>, jake!wcarroll@encore.encore.com (William Carroll) writes:
: 
: 
: From: jake!wcarroll@encore.encore.com (William Carroll)
: >From article <1990Jul23.203523.8039@cbnews.att.com>, by dps@otter.hpl.hp.com (Duncan Smith):
: > / otter:sci.military / tek@CS.UCLA.EDU (Ted Kim (Random Dude)) /  5:09 am  Jul 18, 1990 /
: > I've heard of diverted thrust (blown flaps?), as in the YC-14, but this 
: > doesn't seem to be the same principle.
: 
: Its known as the [Coanda] (sp?) effect. The air flowing over the wing wants
: to follow the trailing edge, getting curled down as it leaves the wing's
: surface. This results in a vertical force component.
: 
: It was my impression that the USAF built a STOL prototype that employed
: this technique, but I my memory may be failing me there.

The NASA QSRA STOL demonstrator uses Coanda effect with its blown flaps to
get very low flying and takeoff speeds.  (It's really quiet,too.)

I think that both the YC-14 and YC-15 used top-mounted jet engines to get
the fluid flow needed for the same effect.

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  The only drawback with morning is that it comes 
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