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A headwind will reduce the ground speed needed for takeoff, as there is a greater flow of air over the wings. Typical takeoff air speeds for jetliners are in the range of 240–285 km/h (130–154 kn; 149–177 mph). Light aircraft, such as a Cessna 150, take off at around 100 km/h (54 kn; 62 mph). Ultralights have even lower takeoff speeds.
Takeoff safety speed. The speed at which the aircraft may safely climb with one engine inoperative. [7] [8] [9] V 2 min: Minimum takeoff safety speed. [7] [8] [9] V 3: Flap retraction speed. [8] [9] V 4: Steady initial climb speed. The all engines operating take-off climb speed used to the point where acceleration to flap retraction speed is ...
Conventional airplanes accelerate along the ground until reaching a speed that is sufficient for the airplane to takeoff and climb at a safe speed. Some airplanes can take off at low speed, this being a short takeoff. Some aircraft such as helicopters and Harrier jump jets can take off and land vertically. Rockets also usually take off ...
The takeoff decision speed V 1 is the fastest speed at which the pilot must take the first actions to reject the takeoff (e.g. reduce thrust, apply brakes, deploy speed brakes). At speeds below V 1 the aircraft can be brought to a halt before the end of the runway. At V 1 and above, the pilot should continue the takeoff even if an emergency is ...
Rotation at the correct speed and to the correct angle is important for safety reasons and to minimise takeoff distance. [1] After rotation, the aircraft continues to accelerate until it reaches its liftoff speed V LO, at which point it leaves the runway. After liftoff, a speed V 2 will be called out, being the speed at which the aircraft is ...
This article lists powered fixed-wing aircraft with a stall speed of 50 kilometres per hour (31 mph) or less, and certain other aircraft. It does not list helicopters or vertical take-off and landing aircraft. Fixed-wing aircraft are limited by their stall speed, the slowest airspeed at which they can maintain
So if an aircraft's wing area is increased by 10% and nothing else is changed, the takeoff speed will fall by about 5%. Likewise, if an aircraft designed to take off at 150 mph grows in weight during development by 40%, its takeoff speed increases to ≈ 177 mph.
The Lockheed SR-71 Blackbird holds the official Air Speed Record for a crewed airbreathing jet engine aircraft with a speed of 3,530 km/h (2,190 mph). The record was set on 28 July 1976 by Eldon W. Joersz and George T. Morgan Jr. near Beale Air Force Base, California, USA. It was able to take off and land unassisted on conventional runways. [47]