>>1652310This.
>>1652270>Was it really a miracle?Double engine failure with no possibility of restarting them in flight. For perspective:
>During the past few years, in fact, the average IFSD rate of the worldwide 180-min ETOPS fleet has typically been at or below 0.01 IFSDs per 1,000 engine-hours — twice the reliability required for such operationsThat's one in-flight shutdown every 100,000 engine hours at worst, and Sully has two simultaneously.
His genius moment was the ten or fifteen seconds where he and the co-pilot did nothing but start the APU. That was enough time to take a total assessment of the aircraft and the energy available for any maneuvers. However, he got lucky a couple ways: the A320 stayed in normal law so he had the full suite of airframe protections available. The plane is designed to stay right at alpha floor so he was able to extract all the lift the wings could produce and allow the plane to gently stall as he butters it in the water. He flares, the plane goes ok, the energy dissipates, and then the airplane goes lolno, trades angle of attack for airspeed, and slowly drops the nose which allows the fuselage maximum surface for water contact spreading the force over the largest surface. I don't think he could have done what he did in a Boeing. There isn't any AOA feedback unless you are riding the stickshaker. It wouldn't have been as smooth.
The weather was severe clear, too. It's is absolutely the pinnacle of preparedness meeting reality.
>>1652277Pushbuttons on the overhead panel can inhibit GPWS for too low flaps, gear, and ground proximity.
