P-38G Yaws left on takeoff

[FLS]

Traveler mentioned in Help and Training that the P-38G yaws left on takeoff so I tried it twice with trim centered and it yawed left. Then I noticed rudder trim had moved on takeoff, which shouldn't happen since I use analog trim and checked that it was centered before takeoff. I re-centered the rudder trim and it took off straight. It seems to be a rudder trim bug but I don't know if it's AH or my Logitech G940 controller. I tried the P-38G on a different PC without a controller and it took off straight.

[Motherland]

It doesn't trim left for me, I use manual trim. X52, although the rudder trim axis isn't set up because it's porked on my stick.

[Soulyss]

Nor here, I fly the 38G a lot and I don't have to retrim anything.  Just spawn apply even power and it rolls straight and true down the runway. 

Do you have auto take off on by default?

[FLS]

Usually it rolls straight for me too Soulyss. It was strange that it did it twice after reading Traveler's post even though I had set my trim wheel to center and the indicator showed it was centered. After the second time I noticed the indicator was off center but the trim wheel was still centered. I had been flying prior to that in a P-47N with no indication that there was a rudder trim issue. I would suspect it's the potentiometer spiking or a calibration issue but I don't know what Traveler is using.

[Ack-Ack]

There is nothing wrong with the P-38G in regards to yawing when either applying full power or after full power has been applied.  If he's using dual throttles, it maybe an issue where he's not pushing the port engine to its fullest extent while he's doing so with the starboard engine but it's definitely not an issue with the P-38G in game.


ack-ack

[FLS]

I played with this some more and it looks like it's likely a hardware issue not a bug. Moving the throttle forward can occasionally bump the R1 rotary indicator in setup even though the wheel itself doesn't appear to move. 

[Stoney]

I used to have a problem with the calibration of one of my brake pedals which would make the nose slew left.  Took me a long time to figure that one out.

[oboe]

Carrying a single drop tank, by any chance?

[Traveler]

There is nothing wrong with the P-38G in regards to yawing when either applying full power or after full power has been applied.  If he's using dual throttles, it maybe an issue where he's not pushing the port engine to its fullest extent while he's doing so with the starboard engine but it's definitely not an issue with the P-38G in game.


ack-ack

I pretty much disassembled my control unit and  cleaned them, re-calibrated them within AH and my problem seems to have gone away.  I only noticed the yaw to the left in the G model which thinking back is strange if the problem was only in the controller. It should have happened in any aircraft. 

I seldom use the rudder trim key which is different then the rudder keys “A” left rudder and the “D” key, Right rudder. 

Speaking for myself, I do not have a twin throttles.  Not sure what FLS has. So it was never a throttles issue.

[oboe]

FLS has a Logitech G940, which has dual throttles (which are pots, not Hall sensors as the Logitech adverts might lead you to believe)

[FLS]

That was a funny coincidence. Mine was the throttle trim wheel moving a bit when the throttle was moved. I turned down the sensitivity. Not a bug.