what happens if all engines fail during takeoff???

Answer 1

This is a scenario often practiced in pilot training. What you do depends on what stage of takeoff you're in.

If you haven't lifted off yet, you just put on the brakes and stop. Hopefully there's enough runway left to do so, otherwise you might go off the end. This is not good, but it's better than crashing from a high altitude.

If you've just lifted off and are still pretty low, say, under 500 feet, you just do an emergency landing straight ahead. Turning is a very very bad idea with no power at low altitudes. Nervous pilots can attempt too tight of a turn, pull back too hard, stall and spin.

If you get much higher, you're in luck, you can declare an emergency, turn back and land at the airport you just left.

One of the partners in my last plane actually had this happen; a ball bearing came loose in the fuel pump and blocked the fuel from flowing on takeoff; he had just lifted off about 2000 feet down a 10000 foot runway and had plenty of room to set back down and stop. (which is why one of the three most useless things in aviation is "runway behind you", the other two are "altitude above you" and "fuel still in the fuel truck"). Our instructor had trained him right, he did what he was taught, and neither he nor the airplane were hurt in the least.

Answer 2

Your plane then becomes a glider. Most small planes can glide a long distance and can make it to an airport and land if there's one close by and they have enough altitude at the time of the engine failure. Larger, heavier planes also glide, but not as well.

Aircraft don't necessarily stall if they lose their engines. In aircraft, a stall is a loss of lift because the airflow over the wings is disrupted, that is the airflow over the wings is no longer smooth. If a pilot handles the engine loss correctly (i.e., doesn't pull the nose up), there will still be laminar air flow over the wings and the plane will still glide.

Answer 3

First of All it will never happen. Why?

1. Over the past years, the engines have become very reliable. Their MTTF (Mean Time To Failure) & MTBF (Mean Time Between Failure) has been improved, significantly.
2. Their Bearings are now made from Ceramic. Ceramic Bearings can withstand extremely high temperature. (The Max. Thrust ceiling during the Take-Off is around 30 sec max i.e. you can rev. up the engines at their maximum RPM for 30 sec, during the Take-Off. After this the RPM needle starts touching the 'red-zone' and engines may catch fire. But the latest designed Turbo-Fans and Blades have made it possible to get maximum thrust at comparatively low RPM than the older engines.
3. Thirst is Bird hit, which can not hit all the four engines at the same time.

Now considering that ALL four engines fail:

1. The first thing the pilots will do is to attain maximum height with this intial available thrust.
2. Then try to level the aircraft. The aircraft is balanced in such a way that it can glide to some distance smoothly without engines but the pre-requisite is availability of considerable height at which it is flying.
3. Find out an open space, wherever available.
4. Try for Belly landing.
5. Pray God for smooth landing.

(One of several example: An Indonesian GARUDA Boeing 737 did that (but not at the time of take-off, but during an appraoch when all the engines failed as the aircraft was flying through heavy thunderstorm (It was later found that the heavy thunderstorm made the burners in the turbine to malfunction---although very very rare). The Captain landed the plane on its belly on a water canal bed. Only one airhostess died mysteriously as her body was found floating in the canal. The captain succedeed in doing so as he was aware of the geographical layout of the area and he knew where the canal was.)

(Second example: A British Airways Boeing 747 was flying to Sydeny over Jakarta when all the engines failed. The captain tried to re-ignite the engines but without success. They were at 35,000 feets. So they prepared for an emergency landing. Airport was approx. 270 Kms and there was a mountain in between the runway. His trigonometry calculation told him that he cannot overflew the mountain at that glide scope. At around 8000 feets (some 140 Kms off the runway) he tried to re-ignite the engines. And Lo!...all engines started one by one as the auto-iginiters worked furiously to start the engines. The Captain again leveled off the aircraft to 30,000 feets. At this height, all the four engines stopped again. He decended the plane back to 7000-8000 feets and again the engines started. He decided to keep the aircraft at this level, declaring emergency and landed smoothly. What happened? Later examination showed the turbine blades covered with ash and black soot. It turned out that a day earlier one volcano had errupted and the ash clouds were lingering at this height enroute this particular flight. When the aircraft reached this height the ash entered the engines making the ignition difficult.)

Most of the accidents happen because the pilot try to save the aircraft. During the take-off when the engines fail the pilot tries to turn back by 180 degrees in order to reach the runway for an emergency landing. And due to this he looses the already gained height. The best course is to go straight and try to land smoothly in any available open field.

That's it...

Answer 4

The pilot or flight crew executes the all engines out emergency procedure for that aircraft, just as they are trained to do!

It HAS happened. That is why there are always procedures to follow for such an event in every aircraft manual!

An engines out emergency procedure usually involves going for a target airspeed, selecting all battery switches and fuel pump switches on or override, followed by the attempted restart sequence of an engine as able, otherwise an emergency landing will follow. Hopefully there are some suitable locations nearby.

Here is an NTSB report on a dual engine flame out on takeoff that landed successfully after the crew did their EPC and handled the emergency-
http://www.ntsb.gov/ntsb/brief2.asp?ev_id=20001208X07944&ntsbno=LAX97IA180&akey=1

In 1986 a United 767-200, N609UA, flamed out both engines on take off climbing through 3,000!!! The crew was able to restart both engines and return to the airport of departure for an uneventful landing.
http://aviation-safety.net/database/record.php?id=19860331-0&lang=en

Answer 5

if the engines on the aircraft fail during takeoff the the plane will stall out and you will become a 100,000 pound rock going stragiht down to the groud!:)

Answer 6

The pilot should immediately lower the nose and find any possible place to set down or stop. Most commercial aircraft do have an autobrake function which will stop the aircraft very fast, even to the point of causing the brakes to catch fire.

Answer 7

It stops being called takeoff and is then referred to as crashing!

Answer 8

Drop like a rock

Answer 9

You: Shut up and don't freak out

Me: Land the plane, restart the engine.

Answer 10

you'll have a free ride all the way to the scene of the crash