How Much Is "Plenty of Time"?
DJ, I guess we need to define "plenty of time". Five seconds, ten seconds? In a couple of seconds, a properly alert crew should be able to say to themselves, "Hey look, the airspeed just dropped and we got a stall warning, but the plane keeps on flying normally. Must be a failure of the airspeed indicators." As long as you're cruising smoothly do you really want to push over and add power, or whatever? I wouldn't think so but that's why I think an independent AoA indicator would be appropriate. Lately there has been a rash of erratic airspeed indications reported. It turns out that there have been incidents going back some time. Apparently the airlines don't want to pay for it but until the erratic airspeed problem is solved, if I were flying one of these, I'd like to have an AoA gauge. That way I wouldn't unnecessarily disturb the passengers.