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Old 22nd Aug 2014, 23:00
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AirRabbit
 
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Originally Posted by Lonewolf_50
FGD, just a thought: Sully did OK with the tapes in a stressful situation.

While I prefer round dials for the usual brain / peception channel reasons, acclimating to the tapes and using them may not be quite the tall order being advertised.
Originally Posted by glendalegoon
Lonewolf_50

Actually, the NTSB report shows difficulty in maintaining a proper airspeed in the sully case.
Actually, the NTSB report said the following:

14. Despite being unable to complete the Engine Dual Failure checklist, the captain started the auxiliary power unit, which improved the outcome of the ditching by ensuring that a primary source of electrical power was available to the airplane and that the airplane remained in normal law and maintained the flight envelope protections, one of which protects against a stall.

15. The captain’s decision to ditch on the Hudson River rather than attempting to land at an airport provided the highest probability that the accident would be survivable.

16. The captain’s difficulty maintaining his intended airspeed during the final approach resulted in high angles-of-attack, which contributed to the difficulties in flaring the airplane, the high descent rate at touchdown, and the fuselage damage.

17. The captain’s difficulty maintaining his intended airspeed during the final approach resulted, in part, from high workload, stress, and task saturation.
So, yes, there was some problems with airspeed control encountered during the approach flown with either one engine not operating and one engine operating, but only at idle power, or not; having one or both engines rotating to some degree, or not; which may have resulted in substantial drag (either symmetrical or asymmetrical), or not; which may have, in turn, provided sufficient cause for airspeed control problems, or not. Bottom line – Capn Sully done, not just good, but great! That indicates to me that the references he was using - both inside and outside the cockpit - including the references he used for airspeed, were sufficiently adequate to allow the resulting piloting performance, which, again, was pretty impressive - and even more so given the intended landing location, with all of those yet-to-addressed contingencies!
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