Does anyone know the time it takes a jumbo jet (747 or similar) to accelerate from 0 to 62mph (0 - 100kph)?

Question

This should be ground speed not air speed, basically as it goes along the runway to take off

Answer 1

Boeing's website for the 777 says less than 6 seconds, lightly loaded. Probably similar stats for other larger aircraft. Rotation (takeoff) is around probably 150 mph, lightly loaded if i had to guess.

Answer 2

I'm not an airman, but I'll try to answer this one.

Like what has been largely said here, the behavioural characteristics of a jumbo jet depends largely on it's make and configurations (this includes loading). For example, a Boeing 747-100 would behave differently from a B747-412 because of it's weight configurations and so would an Airbus A380. Also affecting performance would be weather conditions. For those who took physics, they would know that a heavy object is harder to accelerate than a light one and wind would offer additional drag values to ground friction.

A friend of mine had tried this on Microsoft's Flight Simulator (MSFS) 2004. The configuration used was a PMDG Boeing 747-400. It was loaded to maximum take-off weight (MTOW) @ 30% forward-biased CG and powered by Rolls-Royce RB211-524G/H-T high-bypass turbofans. The aircraft was accelerated at take off/go around (TOGA) power. Conditions of the take off roll were sea-level take off with no winds and dry weather. The time it took from brakes off to the centennial mark was 18 secs. Reason being of the large inertia and drag values (flaps 20) the aircraft possesses.

Answer 3

You are mistaken on two points.
1) Takeoff speed is AIRspeed, not ground speed, and
2) The 747 will never get off the ground at 62 mph. Try 140 mph.

And besides, the time it takes ANY plane to get airborne (or to any given speed) depends on many factors, including aircraft model, loaded weight, load distribution, wind speed and direction, runway heading, runway condition, air temperature and humidity, pilot's reflexes, pilot's mood, and MORE.

Answer 4

This is very difficult to answer because so many things effect aircraft performance. Air Density, Temperature, the Gross Weight of the Aircraft, and Runway Condition (Wet/Dry/Snow covered) are the most important. If you are planning on drag racing a 747, I believe and decent car would probably beat it to 100 kph.

Answer 5

Also note that aircraft are set to takeoff using different engine speeds for different conditions. In any event, for the first few seconds, lots of sports cars could easily beat an aircraft.

Answer 6

I would have thought it was considerably slower than that. it is the 60 mph upwards that the accelleration would be greatest. It certainly feels a lot slower when on board, the way you are pressed in your seat is a lot less than in most cars.

Answer 7

2-4 seconds I fly them

Answer 8

about 2.8 seconds