Aeroplane take-off?

Question

whats the speed an areoplane has to be going before it can takeoff?

Answer 1

All dependant on the airspeed over the wing and the wing area.  Providing that the airflow is quick enough to produce lift, (air density decreases over the wing), then the aircraft will take off.

I have the theory that if you had your aircraft static on the runway, and the wind was strong and consistent enough, then if you pulled the yoke back, you would infact hover.

Answer 2

Depends....

wind speed, weight, wing size, wing shape.

so anything from 15mph (ultra light with HUGE wing surface)...to about 150mph (commercial airliner)

Answer 3

typically 150 knots in a commercial airliner

Answer 4

The typical jet aircraft rotates for takeoff around 120mph to 150 mph, and lift off around 130mph-170mph, depending on the type of plane and the weight. Temperature and altitude (both of which affect air density) also play a role in takeoff speeds.

Smaller general aviation aircraft (such as 2 and 4 seat Cessna and Pipers take off between 45 and 60 mph). Ultralight aircraft (essentially hangliders with motors) might lift off at speeds as slow as 15-20 mph.

Answer 5

What Plane ? How BIG ? How many People on board ? What is the total weight of the Plane ? How many Engines ? What thrust does the engines have ? ETC ETC ETC...

Or do you just want a ball park figure for a Jumbo Jet ?

Answer 6

I wouldnt know,im always hiding under the chair!

Answer 7

This depends on a variety of factors.

1. Size

2. Weight

3. Wind speed

4. Pay load

5. Runway length (sometimes more flaps and trim is required to get it off the ground ASAP)

There are loads more, they are just some examples.

Something as small as say a Cessna 152 would take off at 65kts. An airbus A380 would lift off at around 180kts. Thats ground speeds though. Indicated airspeed (IAS) which is what the pilots use could be much higher than this. For example if you have a 60kts head wind and you are flying at 120 kts ground speed. Your IAS would be 180kts. In the same scenario but with a 60kts tail wind, your is would be nearer 60 kts. (Not that you would normally take off with a tail wind.

Its a rather general question, however i hope this helps.

Answer 8

Well that really does depend on the aeroplane, the load it's carrying and the wind speed and direction - because it's not the plane's speed down the runway that counts but the speed of the air over the wing. Say your small plane normally gets airborne at 50 mph if the wind is blowing down the runway at 10 mph you only need to be  travelling at 40 mph along the runway for the 'speed over the wing' to get you airborne. That's why aircraft always take off and land 'into the wind' and airport runways are laid  into the prevailing wind. Keeping the ground speed as low as possible is a dood idea - just in case something goes wrong!. When aircraft carriers launch and recover their aircraft, if possible they will steam into the wind for exactly the same reason.

Answer 9

it depends with a swept wing aircraft it will be faster because it has less lift then a plane with wings that go strait out and because there wings go strait out they go slower because there is more air friction but more lift

Answer 10

depends a 737 to a a320 series is usually 160 to get a a good climb rate quickly, a 747 is 180 to get an average climb rate.

Answer 11

It all very much depends on the size / type of aeroplane / airplane.

Sash.

Answer 12

The name of the speed is common: "Vr" or "V-rotate", however the...speed of the speed (lol) isn't; it varies with different aircraft. For a number of airliners (despite their varying sizes) this "speed" is about 140 knots. Even that can be affected by windspeed (weather), airplane weight, airport elevation and air temperature (weather again).

If so many airplanes seem to have similar "Vr" then you might wanna examine their wings; they'll probably have not-too-different wing sweep angles and/or wing chords as well as wing area...proportional to the airplane's overall size or something...just a hunch.

Answer 13

It depends on the type. A Boeing 747 rotates at about 144 knots (160 mph) and lifts off at about 180.

Answer 14

It varies with aircraft type.

Wing geometry and the deployment of control surfaces (flaps, slats etc) also effect minimum "take off" speed V2.

You may find this link useful. http://www.aviationboom.com/terms/vspeed...

Answer 15

around 180 knots

Answer 16

Stall speed.

Answer 17

very fast!!!! aand depends on which type o plane it is!!

Answer 18

It really all depends on size of aircraft, load and weight generally. A boeing 767, airbus 330 or similar large commercial carrier that most people would go on long haul holidays in would have a take off speed of approx 160mph

Answer 19

My Aeronca Chief with 85 horsepower lifts off at about 45 MPH.

The Piper Cherokee I sometimes rent lifts off at about 60-65 MPH.

The Boeing 747 I flew for ten years lifts off at anywhere between about 135 MPH and 170 MPH.

In all airplanes, it depends on field elevation above sea level, barometric pressure (which pilots call the "altimeter setting"), temperature, and the load you are carrying.

The higher, the warmer, and the heavier, the higher the takeoff speed and the longer the ground roll.