Originally Posted by xcitation
however at constant velocity the water surface will remain parallel with the surface of the earth.
No it won't. In a steady-state turn, for example, it'll be parallel with the wings, just like the iphone "AH"... Are you seriously suggesting that these guys, in the dark of night with all hell breaking loose, should have pulled a waterbottle out of their bag and held it up to see whihc way was up?
do you have any better suggestions?
Yes, an aeroplane that presents attitude, angle of attack and has controls that do what the pilot wants and tells him what he needs to know eg if AoA indicates a stall, keep the stall warning going, not stop when the speed drops off the clock.