Topic Author
Posts: 99
Joined: Fri Oct 08, 2004 4:25 am


Fri Apr 30, 1999 12:42 am

Hi all :

Do you know the minimum speed that an aircraft should achieve in order to power itself for taking off ?

Thanks ...


RE: Speed

Fri Apr 30, 1999 2:22 am

I'm not sure I know what you mean.
Posts: 549
Joined: Mon Jun 05, 2000 6:08 am

RE: Speed

Fri Apr 30, 1999 2:35 am

If you are asking "what is the necessary speed for an aircraft to take off?" the answer is it depends.

1.What aircraft is it?
2.What is the head wind?
3.Do you mean ground speed or air speed?

Posts: 2360
Joined: Thu May 20, 1999 7:07 am

RE: Speed

Fri Apr 30, 1999 4:06 am

Well, I DO know this :

A medium/large sized jet , ie. 757/767 would start the rotation at about 160 knots. ( airspeed)


RE: Speed

Fri Apr 30, 1999 9:17 pm

If you mean what I think you mean, I can tell you that with flaps at 10 degrees, the MD-11's rotation speed at a very light take off weight is 145 knots indicated airspeed, and at a very high weight, 180 knots indicated airspeed.

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