Why does my spit spin around before engine start..?

[kedrednael]

When you have a plane with the wind blowing from the side it will act like a weathercock (if that's the right word) because of all the wind against the rudder the aircraft will turn into the wind.

But if you start the engine wouldn't the prop wash be much stronger than the wind? In ROF the propwash is modeled nicely so you can lift the tail from the ground while you are standing still when you have full throttle selected. And when you land and you're going the wrong way you can make the rudder more effective when you turn the engine back on.

I have stood behind prop aircraft in real life, and the prop wash is really strong. even with pretty 'weak' engines (engine of a glider (ash25mi) probably has something like 45hp)

[ACE-OF-ACES]

Never mind about the breaks for a moment..

Let's assume for a moment that it is the wind that is causing the Spit to sit-n-spin

Ok, so far so good..

Than.. why doenst the Bf-109 sit-n-spin?

Or any other plane for that matter

What is special about the Spit?

[SG1_Lud]

Originally Posted by ACE-OF-ACES

Never mind about the breaks for a moment..

Let's assume for a moment that it is the wind that is causing the Spit to sit-n-spin

Ok, so far so good..

Than.. why doenst the Bf-109 sit-n-spin?

Or any other plane for that matter

What is special about the Spit?

Your 109 doesnt? Cos here it does for sure.

[ACE-OF-ACES]

Originally Posted by LUD

Your 109 doesnt? Cos here it does for sure.

Yours does?

Ok dissregard than..

Ill admit I have not flown the 109 as much as the Spit.. but the few times I have it did not sit-n-spin like the spit does

[SG1_Lud]

Originally Posted by ACE-OF-ACES

Yours does?

Ok dissregard than..

Ill admit I have not flown the 109 as much as the Spit.. but the few times I have it did not sit-n-spin like the spit does

I cant say always, cos i was not paying attention, but very often is accurate.
I am watching this thread with interest because I am not sure if it is the wind or not (tho I admit it is a valid explanation so far): if I recall correctly my 109 always spins counterclockwise, and that is what makes me doubt.

[Tbone81]

Maybe it is the Corkscrew effect.

http://www.free-online-private-pilot...odynamics.html

[BadgerSmedly]

If it's prop wash or the wind does a little opposite rudder stop the movement? When it tried it this worked.

[ACE-OF-ACES]

Originally Posted by LUD

I cant say always, cos i was not paying attention, but very often is accurate.

Ok..

And just to be clear, that is as soon as you spawn in right? I mean even before you fire up the engine it starts to spin

On that note, with the engine and rudder in op dir I am able to stop the spin.. but I never seem to be able to turn aginst the spin (read just cancle the spin)

When I turn into it.. it will turn pretty quickly for a little while, about 20 deg.. but than stop again as in no effect..

So it does have that wind vector feel to it but.. odd like.. sometimes it acts like you would expect and in other cases it dont

all in all makes taxi a nightmare.. typically when I spawn I just punch it and hope there is enough room in front of me to make it

[SEE]

To cancel the spin I hold rudder fully deflected and hold brake, increase revs slightly and Spitty turns opposite to spin. When pointing in correct direction release brake, rudder neutral and re apply brakes untill engine or oil temp correct. Take off as per norm for a spitty!


I spawned in a hanger and the spitty still spun around exactly as if it were out of the hanger!

[SG1_Lud]

Originally Posted by ACE-OF-ACES

Ok..

And just to be clear, that is as soon as you spawn in right? I mean even before you fire up the engine it starts to spin

Right