Question:
Hello, I am curious about this particular aircraft and it's impressive engines which- i believe- are the largest turbines ever fitted to a passenger jet. But I'm curious whether they are at full power during take off , and if so, how long they can SUSTAIN full power. is there a limit?
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I'm also curious what the effect of a single engine failure would be on the 777-300 during take off, with the undercarriage still down. - if anyone can enlighten me?
Answers:
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The B777 is one of the best and safest aircraft in today's world. We are glad to have this aircraft. During take off preparations they always calculate different factors such as aircraft load, fuel on board (FOB), runway length and surface, weather etc. Once the calculations are done the crew then refer to the flight management computer (FMC) and enter all details there. The FMC is the heart of all computers on board the 777. Once entered the FMC calculates how much power the aircraft would be needing for take off. On the runway the pilots give about 40% of thrust to stabilize the engines then presses the TOGA button that's the button that the fmc has set the power then the pilot pushes the thrust levers to full. The power setting is usually about 85 to 90% power depending on the weight. Full powers are only in use then there is an emergency. Also the 777 is capable of climbing safe with one engine shutdown in case of emergency on take off. If with one engine before V1 the pilot will stop the aircraft if after V1 the pilot will continue the take off, go through the check lists and perform a turn around landing back at the airport.In airplane maintenance, what does the term corrosion mean?
I'm not a specialist in the field of Boeing aircraft but I would suggest that if the flight crew lost one engine before V1 (critical go/don't go speed), they would abort the flight. If an engine was lost on Rotate, the aircraft should still have sufficient power to get safely into the air, although the event would be pretty hairy.Dome thing beneath a helicopter?
During take of Jet engines are not run at full power. Ussually they are set to a maximum of about 80%power during take off. Full Power is only used during emergencys, and when it is done, the pilot has to report this in the maintnance log of the aircraft, so the engine can be inspected.There isn't a set time limit as far as I know of (I might be wrong). Mostly they try to keep it at as little time as possible, while monetring the engines internal pressure and temperature very closly.
If an engine was lost during take off, the other engine would be set to full power, and the 777 has the ability to still manage a take off, but it would be a very scary ride.. if loaded, it would climb very slowly.
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Think the answer above is spot on. However in response to your question of engine size the Boeing 777 series does not carry the largest. From what i remember some 777 aircraft have the Trent 800 engines fitted. There is now a Trent 900 that is used on the A 380 which is bigger and more powerful.Does the Flight Management Computer provide autopilot inputs?
A CATHAY Pacific passenger jet's left engine exploded minutes after takeoff from the Thai capital Bangkok, dropping debris on a car driving near the airport, a newspaper and the car's owner said today.what's the fastest plane on earth?
The Boeing 777-300, which was carrying 348 passengers, returned safely to Bangkok's international airport yesterday evening, The Nation newspaper reported.
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Well it is a little technical but I will see if I can make it easier for you. They are at full power and can sustain that for a while, however, they cannot sustain it if the brakes are on otherwise they will tear up the runway. But as long as the plane is moving along, the pilot can have a gay old time putting the thrust level wherever he wants (within reason).
All twin jets these days have by law to be able to continue to take off and climb if one engine fails during the process. That's why they're grossly overpowered and don't run anywhere near to full power in normal use.
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