Quote:
Originally Posted by flyeyes
It's possible to stall the airplane from level flight at any speed up to the maneuvering speed by loading the wing (pulling back on the stick). That's how snap rolls work, if you add some rudder at the same time so one wing stalls first.
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Totally OT, but just wanted to point out that the idea that snap rolls are initiated by first stalling the airplane is widespread...and also wrong. This idea will lead to lots of terrible, slow, "buried" snap rolls that put unnecessary stress on the airplane. Proper snap rolls involve only a slight, but sharp AOA change, sufficient to cause the full rudder input to
then stall
one wing only. This is the key to the high rotation rate associated with snap rolls (along with a timely unloading of the stick after the snap breaks). Both wings do not stall, and the single wing stall is caused by the rudder input, not the elevator input. Yes, you can do what's essentially a "horizontal spin" by pulling the stick fully aft, stalling the airplane, and applying rudder, but it'll be so energy-killing, slow, and ugly that I would not classify it as a "snap roll". Sorry, I'm an acro nut to the bone.
And for those who might actually be interested - some snap clips I shot, showing the elevator inputs - which are fairly small compared to the full deflection range of the elevator:
http://www.youtube.com/watch?v=g5et7jj2SiA