I am not an expert but reading Kershner's book and he specifically writes
about the 150-152 (mainly aerobat), he states full opposite rudder, followed
quickly by a "brisk" forward movement of the wheel, "and held" (maybe to
full forward). Perhaps your release of back stick was not the brisk forward
motion needed. Glad you came out ok though. Incidentally, in 74 I believe
they increased the rudder size to give it more rudder authority in this
situation.

VooDooIron <voodooiron@aol.compee> wrote in message
news:20000827235123.25116.00000163@ng-fl1.aol.com...
> What th heck is going on????
> I always had heard somewhere(?) ...that all 'FAA certified' a/c had to
> demonstrate 'a natural-stability' of spin recovery within 1&half or two
> spin-turns.... hmmm is this some false myth i picked up somewhere?
>
> Now this no 'hairy-chested' acro machine ...I'm speaking of the most
popular
> Cessna 150. (the later model with the slanted-tail -not straight-tail
model)
>
> I was to demonstrate the "proper-technique" for "spin Recovery" to a new
> pilot/owner of tthis Cessna 150 (i think it was a 1967-68 year model?)
>
> Fortunately, though I am very experienced with 'spin-recovery' technique,
we
> had elected to begin these demonstration at 6,000 AGL (so we could do
"lots
> of'em, without re-climbing for more altitude)... fortunately, I say
because
> normally 3,000Ft AGL would certainly be an "acceptable" altitude for
> spin-practice, however we began at 6,000ft AGL...lucky lucky lucky
whee....
>
> As I began to "demonstrate"....
> I reduced the power 1200rpm, gently slowing w/ slight nose-up attitude,
until
> reaching 50mph, at which time full back-stick (o.k. o.k. so a cessna
doesn't
> have a :stick" duh)... anyway, at the 'stall-break' full rudder was
applied for
> spin-entry.
>
> (since this was for "demonstration"... and a desire to loose miminum
altitude,
> for sucession of demonstrations,,, recovery was to be initiated upon only
1-1/2
> turns)
>
> Step 1) apply opposite-rudder to 'stop the rotation' ... DONE
> ,,, but we kept spinning!!
>
> Step 2) release 'back-stick' to initiate a reduced-angle-of-attack (from a
> exceed-angle-of-attack.... DONE
> ,,,, but we kept spinning!! (and yes really "wrapped-up" spinning-faster,
due
> the reduced-angle-of-attack)
>
> Step 3) well??? there is NO Step 3
> (disregarding the recover to level-attitude flying step)
>
> So what the his going on???? we are now only moments from making a really
big
> hole!! and this is no Back-Hoe!
>
> Well..sitting there 'spinning like the blazes'!!.... holding FULL-opposite
> rudder!! and nuetral-stick! ,,,, all I could think of ,,,, was how
embarassing
> this is going to be!
> gezus Christ! I'm gonna "buy-it" in a damm Cessna 150! terribly
embarassing!!
> ,,,, I mean if I "spun-in" with a Pitts" at least I'd have some respect!
> but NOOOO... I'm "going in" with a Cessna 150! (God is cruel!) ha ha
>
> Well if not obvious (by now) ,,, (cause I;m writing this),,, we made it
out!
> HOW??? ,,, I haven't a clue??? ,,, (well there is the "God thingy")
because we
> continually were spinning-tight and fast! all the way... then at about
2,000ft
> AGL the Cessna just recovered.... got me?
> so what happened here anyway???
>

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