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#1
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inverted spin recovery explanation
.... and don't forget to close the throttle :-)
"john smith" wrote in message ... TD wrote: Can someone help me and list the steps to recover from an incipient inverted spin and fully developed inverted spin? It doesn't matter whether you are inverted or upright. If you are in a spin, step on the "HARD" rudder pedal, neutralize the stick. When the rotation stops, the nose will be pointed down. Pull to the nearest horizon. Speed will rapidly increase with the nose low, so don't hesitate. |
#3
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Every aircraft is slightly different, and the Pitts is most surely different
from the Decathlon. Looking in the NTSB database from 1983 to 2001, I see19 fatal spin accidents in the Pitts and only 4 in the Decathlon. Source data: http://www.iac-chapter11.net/Fatal_A..._Accidents.htm The Decathlon POH states that both rudder and stick input are required for spin recovery. Can't remember the exact wording, but the basic gist was to apply opposite rudder and anti-stall elevator at the same time. Dave Swartz wrote an article on "unrecoverable spins", based on some spin modes he encountered in a Decathlon. He described several instances where he encountered rudder blanketing and was unable to slow the rotation. Both pedals were "soft". Moving the stick back to neutral increased his rudder effectiveness and allowed him to recover. As I recall, the spins he described were inverted, flat, and accelerated. The link to the article, and to Dave's website, doesn't work anymore; not sure why. In my own limited experience, I found my Decathlon to be a bit reluctant to spin inverted, and to quickly recover as soon as pro-spin inputs are relaxed. For upright spins, I use the standard opposite rudder to stop rotation, then stick to break stall, and it has worked every time so far. Obviously the original poster shouldn't be seeking inverted spin instruction over the internet. However, if he is just nervous about learning positive-G acro without having had inverted spin instruction, that's not really too big a worry. For any kind of blown maneuver in the Decathlon, just neutralize all controls and let the nose fall through. Neutral controls will stop most every incipient stall/spin in the D. "Rick Macklem" wrote in message om... (Guenther Eichhorn) wrote in message ... One important comment: DO NOT pull the stick back before the rotation has stopped. This is very dangerous since first you will accelerate the spin, and then it may get you in a cross-over spin, meaning you transition from an inverted spin to an upright spin, with the airplane rolling in the same direction, but yawing in the opposite direction. To recover from that, you now need to use the opposite rudder. If you don't notice that you have crossed over, you will more than likely not get out of the spin. A good friend of mine friend of mine died in exactly that situation. My only concern with the about statement is that I'm not sure all airplanes will stop spinning without pulling the stick aft. (I recall in an inverted spin in a Decathlon, I had to give it a little extra pull through neutral to get it to pop out. I've been told that Beggs-Mueller doesn't always work for the inverted spin in a Decathlon, which suggests some aft stick is required to stop rotation.) I believe Sammy Mason's version is: - Full rudder opposite to the yaw (he says opposite to the spin, which I've always found confusing for inverted spins) pause - then pull the stick smoothly back through neutral In the three types I've done them in (Pitts, Decathlon, Extra), I never needed full aft stick. Of the 3, the Decathlon seemed to need the most aft stick to get it to pop out. (It's been a long time since I flew a Pitts, but I recall it recovering almost instantly and the Extra seems to come out easily, although I haven't sat there will full opposite rudder and full forward stick to see if it stops before any aft stick movement.) ALWAYS first stop the yaw, then use the elevator however necessary. Yes, I think that is a better way to put it. (And I think you'd agree that it's not the same as waiting for the spin to stop before moving the elevator.) rick |
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