Originally posted by Gabriel
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THE KEY HERE IS MODERATION: They also caution that using the rudder at high AoA is extremely dangerous and that too much slideslip can throw the aircraft into an uncontrollable spiral dive, and that the phase lag of the roll inducing effect can also confuse pilots and lead to corrective (fin-shearing) reversals.
But, put simply, in extreme AoA situation approaching or entering stall, the rudder may be the best control surface you've got. But also perhaps the most dangerous one.
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