Could this be the Coriolis effect? I’m not sure if it’s programed into the game or not. I just remember in Kerbal Space Program it would come into play if you didn’t launch to the east. Basically the rotation of the planet tends to pull things to the east. After all that’s the direction it rotates. Not sure this even applies here. Anyway, complete shot in the dark.
If the issue is with keeping the roll level while in flight and it’s happening for other small prop planes but not 152/172/950, it sounds like an issue with fuel imbalance in the wings on planes that don’t have automatic fuel switching.
Again, though with all due thanks for many helpful thoughts here, the issue is with three specific aircraft in the sim and not all small/lightweight aircraft, in general.
The planes I’ve mentioned are doing this straight away after takeoff and climb are completed, before significant fuel consumption would have an influence on potential imbalance.
During the climb, significant rudder is required to maintain wings level. This is completely normal, and expected. As in the pictures I posted earlier, apply enough rudder to keep the turn and slip/coordination indicator centered.
This has nothing to do with wind, rotation of the earth or any bug. This is simple physics that affects every prop airplane to one degree or another. Every one will be different and so some experimentation and experience will be required to keep the “ball” centered during the climb.
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Yeah, I didn’t even know if it affected winged planes. Ballistic things for sure though.
Flying a long route, it is necessary to consider the rotation of the planet to a small degree, but this is about a 172 dropping a wing during the climb. Not quite the same. 
Is that a joke or? Its not Coriolis effect, its not reversed on Southern Hemisphere all of a sudden. If that would be true it would affect every aircraft type, also jets, it only affects prop planes. Orbital mechanics have little to do with flying an airplane.
Yeah for gyro drift, nothing else 
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It affects planes, just as it affects ballistics projectile. Suppose you fly heading 0o and you have a headwind. While you are flying the earth rotates below you, causing you to end up in a place you would not have thought you would end up at if you were unaware of the Coriolis effect. That holds for all objects, ballistic or not.
The earth’s rotation also causes, due to similar reasons, drift in your directional gyro. The Coriolis effect does not induce roll.
Hey, you beat me to it! 
You are forgetting that the air moves with the surface, its not like you can hover with your helicopter for 12 hours and land at the other side of the Earth. If you have a headwind you will end up short of your destination, which has nothing to do with the Earths rotation.
Actually I chose a headwind with a reason (perhaps flawed, but still): To make sure that the wind is not pushing you to an Easterly/Westerly direction w.r.t. the ground.
If you would have a Southern wind for 12 hours, you could actually do that with a helicopter. Of course such a wind cannot exist, because due to surface friction the earth with drag along the air.
So I concede that my example was kind of academic, but hey, I’m a theoretical physicist.
I was actually considering a long, high altitude flight on a longitudinal route. The Coriolis effect has a significant relationship to upper level winds. It is those winds that the pilot compensates for. A bullet on the other hand is travelling at a velocity that reduces the wind effect enough that a very long sniper shot has to consider that the object being fired at will not be in the same place when the bullet arrives as when it was fired.
The “ballistic” effect is not translated to any significant degree on slower moving objects or objects with a proportionally larger wind profile. In short the rotation of the earth has no discernable effect on the flightpath of an aircraft but does influence the wind sufficiently that we do compensate for the drift it causes.
None of this is relevant , however, to the tendency of an aircraft to bank as a result of the torque of a spinning propeller.
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That is something we can all agree on!
If you’re responding to me, I’d stated that the issue occurs after take-off and climb have been completed — or when immediately settling into a cruise state.
Sorry, I misinterpreted the statement.
Then at that point you need to find the right cruise setting.
I just saw he was pulling to the left. Left and right are relative. East and west aren’t. Also it’s not just orbital mechanics. Snipers have to take it into consideration on long distance shots.
Actually it would. It’s just the headwind could be such that it negates it. Like how you can’t perceive the expansion of the universe locally.
Very cool, I love learning about the universe. Some of the most bizarre things actually happen. It’s interesting, but also frustrating cause to non physicist a lot of it doesn’t seem intuitive.