Line up on the runway....

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Line up on the runway....

Postby Knick » Wed Jun 04, 2008 8:52 pm

I started on the runway with this 1 plane i have, and at not even 1/4 down the runway my plane start drifting left. It is a single engine fighter. I don't know why and yes i reset the controle surfaces b4 take off
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Re: Line up on the runway....

Postby DONTREADMYUSERNAME » Wed Jun 04, 2008 9:35 pm

are you using a keyboard, joystick, yoke/pedals, or what to fly?

Most of the time you can correct the drifting by giving a little rudder in the opposite direction...
Last edited by DONTREADMYUSERNAME on Wed Jun 04, 2008 9:36 pm, edited 1 time in total.
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Re: Line up on the runway....

Postby jasonfriedlin » Wed Jun 04, 2008 9:51 pm

Thats a left turning tendency found in all prop aircraft caused by torque, p-factor, gyroscopic, and spiraling slipstream.  Give it some right rudder and you'll be good.  Its even worse in tailwheel aircraft when the tailwheel lifts up.  You can turn your realism settings down to to get rid of it
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Re: Line up on the runway....

Postby tcco94 » Wed Jun 04, 2008 11:51 pm

Im just guessing dont laugh or say anything mean, but maybe it was crosswind?


Im not sure... :-?
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Re: Line up on the runway....

Postby Daube » Thu Jun 05, 2008 4:42 am

Im just guessing dont laugh or say anything mean, but maybe it was crosswind?


Im not sure... :-?


Cross-wind is the second best possible answer, first one being the engine torque :)
For example, when flying the Seafire from Aeroplane Heaven, I cannot takeoff with full power, because the plane will not keep straight, due to engine torque. But normally when keeping the power at less than 50%, it's fine.... until yesterday, could not takeoff straight, no matter the power. Then I discovered the real weather had set 20 knots of crosswind  :P
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Re: Line up on the runway....

Postby deltaleader » Thu Jun 05, 2008 11:19 am

I have seen this happen on several occassions where my plane drifted left as you powered on.  Yes P-Factor is what it is if you are in a prop plane.  However, last I heard, jets are not effected by p-factor and I know that has happened to me in jets before. I think FSX doesnt always distinguish between jet and prop for p-factor.
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Re: Line up on the runway....

Postby Daube » Thu Jun 05, 2008 11:21 am

[quote]I have seen this happen on several occassions where my plane drifted left as you powered on.
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Re: Line up on the runway....

Postby deltaleader » Thu Jun 05, 2008 11:23 am

I am sure it is not crosswind at times when it has happened to me...the weather theme is alway set to clear.
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Re: Line up on the runway....

Postby jasonfriedlin » Thu Jun 05, 2008 11:48 am

Crosswinds are fun to fly in.  Ailerons into it and opposite rudder is all it takes
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Re: Line up on the runway....

Postby mensa » Thu Jun 05, 2008 2:57 pm

http://wiki.flightgear.org/flightgear_wiki/index.php?title=Understanding_Propeller_Torque_and_P-Factor


Not all prop aircraft go to the left.  There are many planes from the Second World War that counterexample that.
Last edited by mensa on Thu Jun 05, 2008 3:00 pm, edited 1 time in total.
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Re: Line up on the runway....

Postby Knick » Thu Jun 05, 2008 4:31 pm

When i takeoff i do put right rudder to counter it. I am using the A-7E Corsair found on fsgreece. It only happens with this plane i don't know why.
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Re: Line up on the runway....

Postby jasonfriedlin » Thu Jun 05, 2008 10:08 pm

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Re: Line up on the runway....

Postby Knick » Fri Jun 06, 2008 7:42 pm

I started on the runway with this 1 plane i have, and at not even 1/4 down the runway my plane start drifting left. It is a single engine fighter. I don't know why and yes i reset the controle surfaces b4 take off


Oh my. Can we plz answer my q?
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Re: Line up on the runway....

Postby tcco94 » Fri Jun 06, 2008 8:43 pm

I started on the runway with this 1 plane i have, and at not even 1/4 down the runway my plane start drifting left. It is a single engine fighter. I don't know why and yes i reset the controle surfaces b4 take off


Oh my. Can we plz answer my q?


We came up with two solutions if you actually read what people said..

I thought it would be crosswind

and some people above think it might be P-factor

What was your weather set to and what type of airplane was it?
Last edited by tcco94 on Fri Jun 06, 2008 8:44 pm, edited 1 time in total.
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Re: Line up on the runway....

Postby Knick » Fri Jun 06, 2008 9:50 pm

I tested it out it is the A-7E Corsair found on fs. I turned the realism off and i out clear skies. The plane still drifts left, i think it's in the cfg file.
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