Carrier and yawing effect

[Jigster]

This is kinda strange and I'd like to confirm whether or not I'm seeing this exclusively.

On the F4U1D, 1C, and F6F, turning off all the auto's, and taking off from a land base they generally yaw over to the left and ground loop with neutral trim and no inputs.
Zeke does this as well, but is not so bad about ground looping.

Okay all is fine and dandy there. But on the carriers, on both the F4U and F6F, neither requires any control input to keep it on the deck. They do yaw over to the port side of the flat top, but not enough to roll over the side.

First I thought wind might be a factor (from the carrier's velocity) but after a little testing I highly doubt it...the Zeke will yaw off the carrier deck (as it does on land) if no rudder input is used. To confirm it I set the wind to .wind 0 38 0 0 and took off in both the F6F and F4U into the wind from a land base, adding no input. They both yawed off (and ground looped) after a short distance.

So I assume that the carrier's movement is not treated like wind on the plane (which would make sense, so it does not interfere with the wind layers) but am I the only one noticing the lack of yaw compared to land bases? If so why does the Zeke yaw off, or is THAT the bug?

Note, however, that the plane handle no different in the air, it's only present while in contact with the carrier deck.

[gatt]

I noticed it too for the F4U. Didnt try the F6F from an airfield, tho.

[Karnak]

36mph headwind gives more rudder authority.  HiTech said that last night in game.

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We few, we happy few, we band of brothers;
For he to-day that sheds his blood with me
Shall be my brother

Sisu
-Karnak

[Jigster]

 

Originally posted by Karnak:
36mph headwind gives more rudder authority.  HiTech said that last night in game.

I cannot recreate it on the ground with the wind command

And why does the take off characteristics of just these two change? The Zero behaves on the carrier deck as it does on the ground, the same with the Seafire.

And I don't see how rudder authority even factors in with do with no inputs on ANY axis and zero trim are added? Perhaps a greater effect of the intial angle built into the vertical stablizer is enhanced somewhat.

They actually make hands off launchs (provide you trim up or pull up once the wheels leave the deck). I'm not even saying thats wrong, but why do the Zero and Seafire yaw off the deck in the same conditions?

[Jigster]

I tested the TBM as well. It also yaws off the flight deck. Truely perplexing as I thought perhaps planes weight was a factor, but to have a heavier plane with @ the same engine configuration have an even greater yaw effect into the wind is baffeling.

[Jigster]

punt, still seeing this...

[MiG Eater]

If I had to make a guess, I'd say that you (we) are seeing a weather vaning effect. The large vertical stabilizors and fuselages of the American airplanes (and the subsequent surface area) give a much greater weather vane effect than that seen on the Zero and Spit.  The net effect is that it takes less rudder input to keep the airplane straight in the 30+mph wind over the deck in AH's "blue" planes.  If this theory is correct, then the 109 should act similarly to the Spit and Zero when taking of from an AH carrier deck.  The question that remains, is the difference from surface wind on land.  Maybe the WOD (wind over deck) is somehow minimizing the prop generated corkscrew slipstream and resultant yaw effect on the US Navy planes.

MiG

[Jigster]

I would tend to agree but because the TBM acts just as the Spit and Zero I'm reluctant to accept it.

I did try to use a tail wind on the carrier, trying to neutralize the effect, but it still made a straight-line take off, after an intial yaw to the left side of the deck before straightning out (like aways)

It should be noted that with about 3-4 clicks of right rudder trim (and no other control input there after)...ANY carrier plane is capable of a hands-off take off, much like your modern day cat launch  

[Pyro]

Interesting, I'll try to replicate it.



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Doug "Pyro" Balmos
HiTech Creations

[Jigster]

thks Pyro