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potver
01-01-2006, 05:10 AM
Hi,

Although I don,t fly the P-51 ( B or D model)very often I can take-off straight and without any difficulties on grassy strips like Normandy.
However on the winter map ( Ardennes) it is another story.
Whatever settings, tailwheel locked or not, Throttle up in increments or with brakes on throttling up to 70% and let go, there is a heavy ( 45 degree) swing to the left and I,m unable to correct this with the rudder.

Is this a bug or what?

Any response welcome!http://i11.photobucket.com/albums/a190/potver/uitsnede3.jpg

potver
01-01-2006, 05:10 AM
Hi,

Although I don,t fly the P-51 ( B or D model)very often I can take-off straight and without any difficulties on grassy strips like Normandy.
However on the winter map ( Ardennes) it is another story.
Whatever settings, tailwheel locked or not, Throttle up in increments or with brakes on throttling up to 70% and let go, there is a heavy ( 45 degree) swing to the left and I,m unable to correct this with the rudder.

Is this a bug or what?

Any response welcome!http://i11.photobucket.com/albums/a190/potver/uitsnede3.jpg

Chuck_Older
01-01-2006, 06:29 AM
Which version are you playing? 4.02?

potver
01-01-2006, 06:42 AM
Chuck-O,
Yes 4.02m , the missions, I made them some time ago(3/4 year).
First I thought this had to do with making it under a former patch but made a quickie(FMB) yesterday and had the same difficulties.http://i11.photobucket.com/albums/a190/potver/uitsnede3.jpg

SonOfTheBeach69
01-01-2006, 06:54 AM
Windy weather?

mandrill7
01-01-2006, 08:09 AM
I've had similar problems now and again with other a/c. One of the Il-2M missions in the Battle of Kursk d/l campaign featured a take-off in the pouring rain. The normally docile Il-2 swung hard RIGHT(!) on each and every attempt and defied all strategies I came up with for any kind of normal take-off. (I eventually just took off over the fields and rejoined the flight). Worse still, the other missions in the set were "polluted" for a few days and gave me similar problems for a while.

Recently, I tried to fly a P-38 for the first time and had another rainy take-off. I had understood that the P-38 was torque-less as the engines rotated in opposite directions. This baby swung harder left than any a/c I've ever flown before however and after a number of different attempts, I simply gave up.

Was this normal for a P-38? If so, is there any way of getting it off the strip intact?

potver
01-01-2006, 08:34 AM
Mandrill7,

Yes it looks like my troubles.
I hope somebody has a solution.
Good luck.http://i11.photobucket.com/albums/a190/potver/uitsnede3.jpg

Chuck_Older
01-01-2006, 08:36 AM
Does this happen on the Summer Ardennes map as well?


I have a P-51D mission there from like v 3.04 I think. It's always worked fine

VW-IceFire
01-01-2006, 08:57 AM
Sounds like its weather related. If the visibility is low and there are lots of clouds the game adds a "crosswind" (its not very detailed in this respect) to make takeoffs more interesting.

My suggestion is the following:

1) Lock the tailwheel
2) Hold the rudder full in the opposite direction
3) Get the engine running and blowing the prop wash down on the aircraft and past the tail
4) Try and get some speed without going completely off the runway...once speed builds the rudder will become more effective and allow you to steer yourself in a relatively straight fashion.

Its not really impossible...but some people aren't accustomed to using alot of rudder on takeoff so it can be challenging.

Thunderstorm takeoffs are very challenging and I give credit to any and all who can succesfully taxi, takeoff, and land in those conditions. Particularly on a carrier deck!

potver
01-01-2006, 10:38 AM
It happens also on the summer map when its raining, Clear weather and all is OK.http://i11.photobucket.com/albums/a190/potver/uitsnede3.jpg
However it does work well on the Normandy map even when it rains.

KG26_Alpha
01-01-2006, 10:59 AM
Its called "crosswind"

Try the MT map also with "poor" weather you will notice some crosswind effect.

neural_dream
01-01-2006, 11:00 AM
That's not crosswind. That's crosstyphoon they're talking about. My solution has always been autopilot until it gains some speed on the runway.

KG26_Alpha
01-01-2006, 11:02 AM
No auto-pilot online unfortunately

dbillo
01-01-2006, 02:13 PM
I noticed this when I flew a mission off a winter map for the first time recently. It was one of the online maps, forget which. There were three of us flying LA-5FN, and we all had the same effect, a veer to the left just when you start moving. I just figured that the sim had modeled a "slippery" factor into the snow covered runway. It made perfect sense. As you throttle up, the prop wash is initially going to push your tail to the right (depends on aircraft perhaps?). On a slippery runway, there isn't much resistance to that sideways push until you get moving and the rudder starts to have some effect. My $0.02 Canadian.

mandrill7
01-01-2006, 03:41 PM
Thanks for the help. One thing I have done - with a fractious FW190 take-off - is to use brake and rudder combinations, as follows:

1. Turn engine on and keep brake down hard.
2. Throttle to 100%.
3. IMMEDIATELY rudder hard right. Keep brake on and let the propwash turn the nose of the a/c a little to the right. Keep rudder on hard right.
4. Let brake off and keep off until a/c's nose is going towards left of runway. Keep rudder always hard right.
5. Quickly brake hard again and keep brake on until a/c's nose heads back into center of the runway. Keep rudder hard right.
6. After this point I was usually doing about 50 KPH and airflow could counter torque and crosswind sufficiently for normal t/o. So I could now use rudder normally and forego use of brake.

potver
01-02-2006, 03:53 AM
Thanks guys for your input,
try it tonight mandrill7http://i11.photobucket.com/albums/a190/potver/uitsnede3.jpg , I had already the same experience butI still don,t know if this is normal behaviour?

Nigel_Woodman
01-02-2006, 06:30 AM
There is a bug, and it occurs on many maps. I've encountered it on Normandy 2, Finland, and others. For some reason when a plane is positioned in certain locations, it wants to swing wildly. In some missions I've built/flown, the swing is so bad that the plane will actually turn 180 degrees and take off in the opposite direction. The only cure I've found is to reposition the takeoff waypoint or to delete the whole track and start over.

vanjast
01-02-2006, 06:41 AM
Use full left/right rudder and full left/right brakes so you can get your tail up, or speed up as fast as possible.

You will find yourself applying full opposite rudder and tapping the opposite brake (not to hard as you'll nose in) as well.

http://forums.ubi.com/groupee_common/emoticons/icon_cool.gif

potver
01-02-2006, 11:46 AM
Thanks, yes it must be a bug!http://i11.photobucket.com/albums/a190/potver/uitsnede3.jpg

mortoma
01-02-2006, 12:44 PM
The weathervaning into a crosswind is exaggerated in this sim. In R/L, if there is a crosswind so strong as to make a normal takeoff impossible then it's likely that your aircraft's crosswind ability is being exceeded, in which case one should abort their takeoff run and fly another day or after the wind calms down. Unless there is an alternate runway pointing more directly into the wind. In the real war, there were many sorties/missions that had to be scrubbed due to bad weather or horrid crosswinds.

Duncan_Doenitz
01-02-2006, 01:15 PM
Offline, start a pilot career for Finland in a J8-A (the Gladiator biplane). In one of the early missions, first or second assigned mission if I recall correctly, you will take off in the rain.

Those who are posting takeoff tips, I suggest you actually try the mission. Accurate directional control is impossible. You can get the plane pointed down the runway but it will either over-control or nose over under braking if you try to stay on the strip - the wind gusts are simply beyond than the capabilities of the aircraft.

Short of using auto pilot, the only way to take off for the mission is to take off into the wind, bouncing across the field.

Version 4.01 by the way.

Dunc

Bremspropeller
01-02-2006, 01:19 PM
It's not a bug - it's a feature.

I guess Oleg calls uit "ice" http://forums.ubi.com/images/smilies/35.gif

potver
01-02-2006, 03:43 PM
Thanks for your info but more and more people with the same experience, that must be a buck.
I hope there will be a cure for it but we are nearly at the end of the road with il2-FB-PF, so I think we have to live with it.http://i11.photobucket.com/albums/a190/potver/uitsnede3.jpg