Originally Posted by
McWho
Yes I agree with you it seems most likely that the sharp turn was induced as a result of the stall. However the bus is supposed to be spin tolerant when stalled even in gusts or asymetric thrust. At least they have the FDR to analyse fully on this occasion.
If they have not tested the actual aircraft - it is only an assumption that the aircraft is 'spin tolerant' whatever that means. If you are actually at the point of stall and you have a compressor stall on one engine then that engine gives high drag and the other full thrust - this will stall the wing with the engine with compressor stall as it slows down relative to the other wing with full power. The aircraft starts to autorotate - a pilot without experience of entering a spin will attempt to lift the wing going down - precisely not what to do as it stalls that wing further. Then the out of spin g starts rapidly increasing on the flight deck. Spin recovery IMC on instruments takes practice which of course nobody has as 'you aren't supposed to be there'.
