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From: ths@lanl.ARPA
Newsgroups: net.aviation
Subject: Re: Advice on obtaining pilot's license
Message-ID: <30535@lanl.ARPA>
Date: Wed, 4-Sep-85 12:19:40 EDT
Article-I.D.: lanl.30535
Posted: Wed Sep  4 12:19:40 1985
Date-Received: Sat, 7-Sep-85 04:03:49 EDT
References: <360@tektools.UUCP> <489@cepu.UUCP> <434@sdchema.sdchema.UUCP> <283@gcc-bill.ARPA> <2295@sdcrdcf.UUCP> <301@gcc-bill.ARPA>
Distribution: net
Organization: Los Alamos National Laboratory
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> >At an airshow here in Oxnard, CA I watched Bob Herendeen perform an
> >inverted FLAT spin having 24 turns.  Obviously SOME people even enjoy
> >inverted spins!
> 
> Wow - nice trick. What kind of plane was he driving? Better yet, how
> was the recovery?
> 
Many airplanes that are certificated FOR spins will enter a "flat spin"
mode IF power is NOT removed during the spin.  The "trick" that airshow
performers use is simply to "spin with power". This keeps the nose up and
the airplane enters the flat spin.  When they are ready to recover they
remove power and the CG lowers the nose allowing conventional recovery.

CG and power will alter the spin characteristics of EVERY airplane.  You
don't have to wear a chute to spin, but it makes you feel soooo much
more comfortable.  The chute won't help if you don't have the altitude and
presence to use it.

Now for todays mind teaser. What is the relationship between the four
forces of flight (lift, drag, thrust and gravity) during a stabilized
constant airspeed climb?  This IS a trick question.  Reference the FAA
commercial written test for the actual wording of the FAA's version of the
the question and the publication "Aerodynamics for Naval Aviators" for
the "book solution".

Ted Spitzmiller