Deep Stall? Any ideas?
I was reading a fabulous old book called 'The History of Commercial Aviation' and there was a chapter devoted to the emergence of the T-tail jets in the late sixties, namely the 727, Trident and the One-Eleven. . .. .It mentioned that several of these aircraft were lost during test flights due to 'deep stall'.. .. .It showed a picture of a One-Eleven that had force landed on Salisbury Plain after one such test flight.. .. .I understand that 'deep stall' is something to do with the stalling of the wing and the high mounted elevators at the same time.. .. .How would you recover from such a situation and what exactly causes it?. .. .Ta. .. .RU