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-   -   Why does my spit spin around before engine start..? (http://forum.fulqrumpublishing.com/showthread.php?t=25874)

ACE-OF-ACES 09-06-2011 03:14 AM

Quote:

Originally Posted by LoBiSoMeM
and know that your "minor" wind isn't so "minor"...

Well when two people disagree on a word like 'minor wind speed', I find it helpful to apply a number to the value when you can..

And in this case we can (see below).

But first lets take a look at Catseye's testing where he said..

Quote:

Originally Posted by Catseye
At 20m/s the aircraft really "snaps" the nose into the wind. (tail swings). At 10m/s it moves slowly until aligned head into the wind

Where

19kt = 22mph = 36kph = 10mps

Now lets apply a value to to "minor wind speed".. And not just any number, but one from the Australian Bureau of Meteorology, i.e.

Quote:

http://www.casa.gov.au/wcmswr/_asset.../jan/32-35.pdf
The Australian Bureau of Meteorology issues airport warnings that carry alerts for winds with a mean speed of 34kt or greater and wind gusts of 42kt or greater. The warnings are issued for most major civil aerodromes.
Where

34kt = 39mph = 63kph = 18mps

Note that a 'warning' does not even go out in the 'real world' until the wind speed is nearly twice the wind speed that is causing the ingame Spitfire to sit-n-spin

Also take into consideration..

Most civilian airports have much lighter aircraft parked
Most civilian airports are made of cement runways not grass


And I 'think' you will begin to see 'the point view' of the people in category #2 below

1) People who belive a mild wind should be able to cause a spit to sit-n-spin in the middle of a grass field
2) People who belive a mild wind should NOT be able to cause a spit to sit-n-spin in the middle of a grass field

I hope that helps you 'see' it from our point of view!

TUCKIE_JG52 09-06-2011 07:40 AM

That's a different question.

One question is if the plane should face the wind. The answer is yes.

The other question is... how many speed of wind is needed to face the wind in a grass field?

Well, obviously the speed of wind needed will be high, since plane weights and it's wheels have friction, plane will not rotate except in case of a very strong wind.

This weekend I'll fly a real taildragger again but from a grass field. If there's some wind I'll do the test to see what happens ;)


Anyway, most of the things we are discussing in this post will be adressed, since Luthier told that the taxiing behaviour will be corrected (I hope, introducing propwash and some more friction to the ground when static).

TUCKIE_JG52 09-06-2011 07:44 AM

Quote:

Originally Posted by Catseye (Post 331392)
No propwash at startup. The prop can't be adjusted fine or coarse until it warms up. The prop appears to be in a feathered position until it responds to the coarse or fine controls after about 3-5 minutes of warmup. Then the propwash starts to work.

I was not talking about startup. In the video there are cuts, so I assume the plane started to taxi after warming up, but not in real time of the video.

Just see the 2:30 minute and you'll see that. When the B25 shows me its back, after a couple of secons I receive the propwash, it is clearly heard, and as I said, its force almost throw me to the ground.

SNAFU 09-06-2011 08:10 AM

I always set windspeed to 0 in the FMB and my 109 always turns left, never right after spawning - strange kind of wind. :confused:

sorak 09-06-2011 08:26 AM

Im pretty sure this is a bug.. What he is specifically talking about, I have seen this too and this does not behave like normal wind.

TUCKIE_JG52 09-06-2011 09:34 AM

Maybe this FMB feature does not work properly, I've observed that temp and pressure are random on each scenario, maybe wind has some random component too...

Ataros 09-06-2011 09:50 AM

Making and testing online missions I fixed Spitfire rotation issue by reducing wind AND gust power to 1-2 maximum AND setting different direction for them.

Planes also rotate when spawn on an inclined surface btw. Pay attention to this, the incline is often hardly noticeable.

Brakes in British planes require different control key than in German planes (3 keys set up in total for all planes).

Not a bug.

TUCKIE_JG52 09-06-2011 09:53 AM

Quote:

Originally Posted by Ataros (Post 331572)
Making and testing online missions I fixed Spitfire rotation issue by reducing wind AND gust power to 1-2 maximum AND setting different direction for them.

Planes also rotate when spawn on an inclined surface btw. Pay attention to this, the incline is often hardly noticeable.

Brakes in British planes require different control key than in German planes (3 keys set up in total for all planes).

Not a bug.


True it all, must take into account :)

Tree_UK 09-06-2011 10:11 AM

Quote:

Originally Posted by ACE-OF-ACES (Post 331431)
Thought there was windsocks in CoD? Or am I thinking of RoF?

Oleg promised windsocks, but they got blown away in the dynamic weather, the spit spinning thing is a bug, its that simple. Wherever I play (online servers) the spit spins as soon as I spawn, nothing to do with prop wash.

pupo162 09-06-2011 10:38 AM

i bleieve it is a bug.

i Have it every time i set up a Online flight, and my plane jsut slides or spins, like it was on a icefield.


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