boeing 747 take off distance?

Answer 1

3400 m

Answer 2

There's what they can do, what they need to do and the runway that Boeing and the FAA say they need for safety. When an aircraft is lightly loaded they actually use a lot less power for takeoff, this extends the takeoff roll beyond what it needs to be, but saves large amounts of fuel and engine wear. On the down side, this use of reduced thrust cost seven people their lives this year when they used power settings for a 250 ton takeoff weight when they were actually at 350 tons. 747s can reduce power by up to 45% for light takeoffs.

Federal regulations require 10500 feet of runway for 747 takeoffs.

Answer 3

Theres no one distance that a 747 needs to cover before it can hit "Vr" ("rotate"). That's because the distance covered depends on gross weight, wind speed, wind direction, atmospheric pressure (has little to do with it), elevation of the airport you're taking off fromand ummm...well thats all I can think of for now. I've even heard of -for instance- an Airbus A330 test pilot -back in 1992...I think his name was Pierre Baud...anyway he was taking off from a wet runway and he deiced to use "Flexible Thrust". To do that he programmed a false temperature into the FMS and immediately, FADEC automatically lined-up the 'needles' on the N1 and N2 guages...I don't know what the desired effect was but thats an old story. My point is, even thrust settings can -to an extent- affect how much room is needed/used during takeoff, especially on high inertia jets like the 747.

Answer 4

It depends on Density of Air, weight of the aircraft and Thrust.

Thrust is the key... Because if you double the speed of an airplane, you get 4x the lift. Density of Air is only 1 to 1, which mean double the density, double the lift.

However, more thurst require more fuel and high noise level. So 747 ususally set to 80-90% of power during take off. The flight computer ususally calcuate all those necessary data.

You can go to www.boeing.com and find out the estimated take off distance

Answer 5

depends on weight, temperature, elevation amoungst other things. On average 9,000ft. Hope this helps

Answer 6

depends upon weight, air temp, runway elevation

Answer 7

3000 meters ?

Answer 8

without load about 2000m

Answer 9

................... depends on weight ........... around ..... 8 to 9000 feet ...

Answer 10

3,520m