they help an airplane bank (turn) after they takeoff
No
important to take of the airplane
The aeroplane takeoff is controlled by the engine speed and the elevators.
137knots as an average
Hold your forward key down (default W) then once you are going fast enough it will start to lift when it does pull your mouse back until the front goes up. [It's easier to learn if when you get in the plane you press V twice]
An-225 with a 1.3 million pound takeoff weight
Yes, as long it is not on during takeoff.
It is the An-225 with a 1.3 million pound takeoff weight it makes the worlds heaviest airplane.
It depends On how fast the planes are going
"V1" is the speed at which the flight crew must either continue with the takeoff or abort the takeoff. It is the last point at which aborting is an option.
The maximum takeoff weight for a Boeing 767 is 315,000 pounds, that is the heaviest the airplane can be upon takeoff.