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-   IL-2 Sturmovik: Cliffs of Dover (http://forum.fulqrumpublishing.com/forumdisplay.php?f=189)
-   -   Why does my spit spin around before engine start..? (http://forum.fulqrumpublishing.com/showthread.php?t=25874)

Tbone81 09-05-2011 08:32 PM

Maybe it is the Corkscrew effect.

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

BadgerSmedly 09-05-2011 08:36 PM

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 09-05-2011 08:43 PM

Quote:

Originally Posted by LUD (Post 331325)
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 09-05-2011 08:58 PM

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 09-05-2011 09:09 PM

Quote:

Originally Posted by ACE-OF-ACES (Post 331338)
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

LoBiSoMeM 09-05-2011 09:56 PM

Quote:

Originally Posted by ACE-OF-ACES (Post 331338)
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 ;)

Launch FMB and set some strong wind flow. Watch your plane turning until face the wind...

But, PLEASE, use some accurate tool to send us proof of that: Cliffs Of Dover have winds...

As one said earlier: it's not a bug, it's the wind... :cool:

Funny to see some expert in FM with this kind of trouble. Well, test it yourself:

1) In FMB, set strong wind;

2) let your fighter (109, hurricane, spit) idle and let it face the wind;

3) Start engine, use throttle and rudder;

4) Watch the strong wind acting during taxi.

5) Yes: taxi IS a nightmare in strong wind conditions...

6) You have gusts in CloD too...

Made my day. Thanks!

ACE-OF-ACES 09-05-2011 10:05 PM

Quote:

Originally Posted by LoBiSoMeM (Post 331354)
Launch FMB and set some strong wind flow. Watch your plane turning until face the wind...

But, PLEASE, use some accurate tool to send us proof of that: Cliffs Of Dover have winds...

As one said earlier: it's not a bug, it's the wind... :cool:

Funny to see some expert in FM with this kind of trouble. Well, test it yourself:

1) In FMB, set strong wind;

2) let your fighter (109, hurricane, spit) idle and let it face the wind;

3) Start engine, use throttle and rudder;

4) Watch the strong wind acting during taxi.

5) Yes: taxi IS a nightmare in strong wind conditions...

6) You have gusts in CloD too...

Made my day. Thanks!

LOL!

You poor thing..

Let it go!

Before you pop a blood vessel or something!

LoBiSoMeM I know your still very Very VERY upset with me for disagreeing with you in that 'other' thread..

But you following me around (stalking) looking for an opportunity to respond really sets a new low in hurt feelings..

May I make a recommendation?

You should think twice about posting in a open forum if your going to get so upset that you feel the need to stalk people in the forums just for disagreeing with you.

Just a thought!

TUCKIE_JG52 09-05-2011 10:13 PM

Quote:

Originally Posted by kedrednael (Post 331313)
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)


Agree with you, propwash effect should be stronger in CoD, maybe stronger than the RoF one, because of powerful engines and propellers... And I say that comparing to real life, not just comparing a simulator with another.

Once I stood behind a B-25 taxiing in an airshow, it was about 30 meters away and I almost fell to the ground (minute 2:20):
http://www.youtube.com/watch?v=q3P_MzYMHc0

:)

LoBiSoMeM 09-05-2011 10:47 PM

Quote:

Originally Posted by ACE-OF-ACES (Post 331366)
LOL!

You poor thing..

Let it go!

Before you pop a blood vessel or something!

LoBiSoMeM I know your still very Very VERY upset with me for disagreeing with you in that 'other' thread..

But you following me around (stalking) looking for an opportunity to respond really sets a new low in hurt feelings..

May I make a recommendation?

You should think twice about posting in a open forum if your going to get so upset that you feel the need to stalk people in the forums just for disagreeing with you.

Just a thought!

Ok, but do you understand that isn't a bug, but wind acting?

ACE-OF-ACES 09-05-2011 10:55 PM

Quote:

Originally Posted by LoBiSoMeM (Post 331384)
Ok, but do you understand that isn't a bug, but wind acting?

Well one thing we know for sure, it is not sun spots! ;)


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