R22 at top of approach, student pulls mixture instead of carb heat, instructor immediately puts it in auto with the stopped engine and they walk away despite a partial rollover on touchdown -
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The student had been specifically briefed about the possibility of confusion, but Robinson identified this as a potential problem in 1981. Human performance discussion, go. The usual suspects will have a pop at Robinson, but let’s not forget how it’s possible to start a 109 with the rotor brake selected on and it only grabs once hydraulic pressure builds as the rotor speeds up…