Plane skids off Turkish runway and plunges towards sea

[F4UCorsair]

52 minutes ago, DipStick said:

Pilots today reported one engine "powered up" which caused the incident .....

 

 

Well, in that case, it's pilot error, in that they didn't power it down.  The support pilot should have called it as soon as it was noticed on instruments, but it would have been noticed by the turn of the aircraft by both pilots, but particularly by the pilot flying the aircraft because his eyes would have been outside.  If something unexpected happens in an aircraft, as you do something, or immediately after, you 'undo' the last thing you did, because there's a fair chance that action caused it.

[F4UCorsair]

1 hour ago, maxpower said:

QUOTE AIRBUS A380

Truth be told, in the megaliner’s braking system, thrust reversers are the least critical components. Airliners are not required to have thrust reversers, and only the two inboard engines on the A380 are equipped with them. The decision not to install reversers on the A380’s two outboard engines saved weight and lowered the chances that those engines, which sometimes hang over runway edges, would be damaged by ingesting foreign objects.

The two reversers do help slow the A380—but not by much. In fact, unlike the thrust reversers on most airliners, including the Boeing 747 jumbo, they do not stop the aircraft in a shorter distance than brakes and spoilers alone. They do, however, take some of the strain off the brakes and are useful if water or snow makes the runway slippery.

 

Reverse thrust does slow the aircraft appreciably.  On the A380, with only two engines equipped, not so dramatic, but an aircraft can be brought to a stop using reverse thrust alone.   The effect diminishes dramatically with speed, most effective at high speed, less so at low speed, and Boeing calls for reverse to be closed by 60 knots, about 110 km/hr.  It does still work below that, but the engine is ingesting hot air from the exhausts which is being drawn forward by the reverse.  Reverse on modern aircraft, with the high bypass engines, is effected by 'vanes' which direct the fan air forward, but like a car on a muddy road, some of what goes out the back is drawn forward, and can cause engines to 'over temp', an undesirable situation.

 

They're another stopping aid, but one which will disappear in time.  Another braking system, making it four different systems on some aircraft, and perhaps a couple more discs on each wheel with make reverse redundant.   Many operators, particularly Airbus, now don't recommend use of reverse, e.g., if you're on an A320, A330 or A340, it's not common to hear the roar of reverse after landing, also depending on a lot of other factors of course.

[ncc1701d]

Perhaps all the airline pilots here should wait for the official report

 

cant wait for the “its so cheap on Pegasus airlines! Let’s fly them!. Their service is so good!”