Deep stalls?

[oboe]

What is the name of the condition where your plane has stalled, but doens't enter into a
severe spin, rather it stays upright and slowly rotates as it loses altitude?

Coming back after a week off, I accidently induced this condition in two different planes, the Yak 9U and the 205.  I tried normal spin recovery techniques (power off, flaps up, rudder into spin, nose down) but just couldn't get the nose down  to get airspeed up.   I pancaked in both planes.
Any pilots out there know the name - is it really called "deep stall"?  And is there any way out of it?  With the Yak, I had 10,000 ft to work with...

Thanks!

[Ripsnort]

Did you try full power and trim elevator down?  If 10k to work with, did you try rolling it over on its back, then split S out of it?

[flakbait]

Heheh, all the ol' tail spin. It's a pain to get out of but there's still a few things you can try. Next time you get into that nose high spin, throw everything into one corner. In the Yak you'll usually spin to the left, so throw the rudder and aileron to the left. Shove the stick full forward after checking to be SURE your trim tabs are set to NOSE DOWN. If they're set to anything higher than neutral you'll never get out. If that doesn't help, floor it and drop a notch of flaps. The aircraft should fall off to the left and enter a really weird flopping spin. It takes a minute or three to get out of the spin, but it'll come around. Sometimes it won't come out, so you enter the next virtual life as a flapjack.

If you get desperate, drop your gear. I've had a few tail spins suddenly stop with a little help from my landing gear. Granted I ditched at home, but I saved my 4 kill sortie.


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Flakbait [Delta6]
Delta Six's Flight School
Put the P-61B in Aces High
"With all due respect Chaplian, I don't think God wants to hear from me right now.
I'm gonna go out there and remove one of His creations from this universe.
And when I get back I'm gonna drink a bottle of Scotch like it was Chiggy von
Richthofen's blood and celebrate his death."
Col. McQueen, Space: Above and Beyond
 

[hogfarmr]

If its a true "deep stall" (very rare) to get out the historical and realistical way is to turn off combat trim, center surfaces, then apply elevator in the way the plane is rocking. so when the nose pitches up a degree, go full up elevator, then when it pitches down 2 degrees, go full down. after a few cycles the nose will start to rock up and down more and more. eventualy you will pitch up so high you enter a true stall and the nose will break hard accross the horizon and hopefully have enough airspeed to regain control.
If low to the ground, press enter enter enter "o".

-AKHog

[oboe]

Ah, I've never messed with elevator trim.  I'll have to try that.   As far as rolling
it on its back, I couldn't get either one
over, power off/on made no difference.
I don't remember it rocking nose to low, so
it must not have been a deep stall.  But it
was the SLOWEST spin I have ever been in.

Thanks for your help guys

[funked]

Yeah this has been around for a while.  Yak, Spit, and Zeke will all do a stable tail slide straight down if you get it perfect.  It only seems to work with the power off.  Throttling up in AH seems to increase the stability of the aircraft.

[Camel]

Flat spin? Anyway, AKhog explained how to get out of it, tough to find the rythem though.

btw, this is my favorite R/C stunt  

[milnko]

I've done that flat spin crap a couple of times tryin' to git fancy on final approach in an attempt to bleed "E" so I could git flaps and gear down. I've yet to recover from it.

When it happens I hear "Goose" in the back seat yellin' "Comon Man, do some of that pilot sh*t!"



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"ASSASSINS have BIGGER Joysticks!"

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[eagl]

If it happens again, check your 6 view while moving the stick.  If you see zero elevator movement, you're still in "spin mode".  The way out is to shove the stick forward and hold it there a while.  Eventually the elevator will start doing what it's supposed to do and you'll fly out.

I've gotten stuck in this mode in the P-47 before, and was flying around for about a minute with the plane nearly uncontrollable.  I had over 250 knots but the elevator was still stuck full-up in the spin mode with only minimal pitch control available in that flight model mode.

Again, the way to get out of it is to use full fwd stick (anti-spin rudder can help too) until you can SEE your elevator move.  Until you see the elevator move, your airspeed doesn't matter a bit even if you're flying over 200 knots in (marginally) level flight.

I assume HT will re-do spins when he gets the time.


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eagl <squealing Pigs> BYA
Oink Oink To War!!!