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Old 15th Jul 2004, 13:34
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Dagger Dirk
 
Join Date: Sep 1999
Location: Bechuanaland
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Yaw will always be opposite to the roll and it will usually be very disorienting. It may take a bit longer but the best recovery is a perfect centralize.

Had one once where a tip-tank came off the fore and the aft locating spigots because they'd not been shimmed after a NDT test and the central bolt was also loosely undertorqued. Of course it took a Porteus Loop (high speed flick manoeuvre) to uncover that fact. It was then a very wild ride of +3.5g and -3.0g (fluctuating between the two) as the tip-tank rotated at the wing-tip. Hardest thing was persuading the chap in the other seat not to abandon ship. Recovery took about 9500ft.

That airplane never flew right again because it had been asymetrically understressed. It flick-rolled at the buffet (buzz/buffet/judder) because one side was all "give" and the other side wasn't.

It ended up in the hands of ARDU and budding TP's were always being tasked to analyze why it was such a weirdo. JP's and Tucano, PC-9 all spin inverted very differently because of their different B/A ratios. Recommend not trying it because it's like practising dying.
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