Quote:
Originally Posted by chiglet
Just (5 minutes ago) had an aircraft divert in to my local airport (East Midlands - EGNX) calling Mayday with an engine failure. Fortunately it was a 757 so stacks of power to spare on the one good engine and it was a positioning flight so it was light and had just the two FD crew on board (they landed without further incident btw). It's just prompted a few questions;
1) They seemed to follow the normal descent profile, would you only tend to stay high in the case of a forced landing on to unprepared terrain? (I hesitate to use the term 'crash landing')
By "descent profile" I'm assuming you mean the angle of the glide path. In the aviation world "descent profile" is a term which encompasses all of the actions taken during the descent and landing (e.g. the amount of flaps that are used, the point in the approach at which gear and flaps are selected down, the point at which speed reductions are made, etc).
The glide path angle does not vary as a function of the type of landing and is always right around 3°+/- 0.2°. Even if we're just landing visually (without an electronic glideslope), we'll be right around this number, because anything different will look very shallow or steep to us. A 4° glideslope feels extremely steep, like you're diving for the runway.
Quote:
2) Having successfully completed a real emergency landing, I guess that particular subject wouldn't be on the agenda for your next few visits to the sim?
Wouldn't that be nice? But you don't get any kind of credit for having a real one.
Quote:
3) With the 757 having such a good power to weight ratio, is the yaw effect of a single engine landing any more noticeable than with any other aircraft?
Of course I haven't flown them all, but in general the airplanes with wing mounted engines will have more asymmetric thrust than fuselage mounted engines (pretty obvious, since there's a longer moment arm about the C.G.). The 757 does have a great power to weight ratio and it's noticeable when flying on one engine, but I can't really say it's any worse. It's all about the rudder, and if you have enough rudder authority on a plane, the asymmetric thrust can be handled.