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Old 28th Jan 2023, 01:28
  #26 (permalink)  
FullOppositeRudder
 
Join Date: May 2009
Location: Down Under somewhere not all that far from YPAD
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From a glider pilot perspective* it looks as though at some point in the proceedings it becomes increasingly apparent that its going to be a near thing to clear the terrain ahead, so there's a gradual deviation to the right. That was working, but just on a lift off (drag off) there is a slight left wing drop which is countered by increasing opposite right aileron going to full deflection. Intuitive perhaps, but wrong in this unusual sequence of events. At low speeds at or near near the stall this is a set up for an incipient spin which is exactly what happened. Ailerons neutral and a generous but short boot of right rudder at the point where wing drop was sensed may have salvaged the day .... I am still not sure whether the aircraft was really ready to fly at that point however.

* Dropping a wing on ground run in gliding is a known (if occasional) occurrence. Accordingly we train for it, and it can be salvaged in almost all instances - not by corrective aileron (the wing is probably still not at flying speed) but by a generous and brief application of opposite rudder. You need to be on the ball not to over correct, but that's what flying is all about - keeping ahead of the aircraft. It's a situation rarely encountered in powered aviation, so the concept is probably little known there - if at all.

Last edited by FullOppositeRudder; 28th Jan 2023 at 03:41. Reason: Reviewed for (hopefully) clarification on a couple of points
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