keeping us in the envelope

[Pi1otguy]

One conclusion from the Asianna crash is that the aircraft didn't prevent the pilots from departing the flight envelope (low speed in risk of going behind the curve?).

How much do we or should we expect various planes to keep us from departing the envelope?
For example, most planes with canards are extremely difficult to stall. That design makes certain flight conditions like spins unlikely.
Or the Breech Skipper with a cruise speed within the white arc. Damaging the aircraft by extending flaps would be tricky at best.

 

[ClimbnSink]

Not the aircraft's responsibility.

 

[Sac Arrow]

My airplane doesn't have a single feature that I an aware of that will prevent me from flying outside its envelope.

I could be wrong, I might want to review the POH to be sure.

 

[Pi1otguy]

Gear auto extend? Or even a squat switch?

Landings and other ground ops with great retracted are outside the envelope.

 

[silver-eagle]

The Asianna crash points out the basic flaw in adding technology to mechanical devices, complacency. It makes people lazy and they fail to do THEIR tasks. They are adding a bunch of wizzbang tech to automobiles. Antilock brakes, drivers tend to ride closer to the car in front of them ALL the damned time. Same with anti-skid or traction control. And look what GPS has done to people.
The point is, you cannot be distracted from the task at hand. Even with a rookie (or the tech) flying, you have to be aware of what is going on. You still have to be in control.

 

[Henning]

The primary thing I see that caused this accident is poor CRM, and the player that caused the accident was the IP, not the trainee captain/PF. The IP should have called out the conditions of the equipment as he changed things which he did not. Why he turned off both Flight Directors and then only turned his back on I'm still not understanding. How both of them a aged to ignore the purple bug on the speed tape, that's a fail on both of their parts as well as the FO/PO in the jump seat. Since he had no view of the horizon, he should have been focused on the panel.

The other issue this points to is the issues inherent in semi/split automated systems that reach the level of autonomy. Over and over again we see these accidents where the pilots are confused by the systems when things get a bit stressful. The engineers forget the primary rule in human engineering, KISS. In a system that is either on or off, at least the pilot would innately understand that "If I am hand flying one thing, I am hand flying everything."

 

[poadeleted20]

Not the aircraft's responsibility.

Greg and I don't agree on a lot, but on this, we do. That's the pilot's job, not the airplane's.