Turbine Duke single Engine
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Hey All. I've recently noticed a lack of adverse yaw on the Turbine Duke in MSFS2024. When flying single engine - full thrust on good engine - I need no rudder input...the plane flys (very unexpectedly) pretty well. I'm no aerodynamics expert but that appears highly suspect. The piston Duke seems much better, requiring a healthy input of rudder when running on one engine. Anyone else notice this?
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I've noticed this with black square twins tbh. I imagine it's hard enough to get the flight model to feel correct with both engines running let alone with either the critical or non-critical engine failing. I do believe the vmc roll speed is modeled ok though. Best flight model around right now is from A2A, and I can vouch the single engine performance on the Aerostar is very convincing. Not to say that black square is by any means bad. In many ways black square can be much more useful as an effective sim trainer so long as you are aware of some slight limitations in how failures are modeled.
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I think the piston duke is pretty good...kill an engine and the ball pivots immediately toward the dead engine. Lots of yaw to trim and it flys better once the prop is feathered. The Turbine Duke however...nothing. Kill an engine and the ball stays perfectly centered...even at red line. The Msfs 2020 version was better. Something has happened to the flight model in 2024.
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What a bummer. The TDuke did perform OEI as expected in 2020, but I guess it's a bit botched in 2024. I just confirmed it. No matter what I did, I could not get the plane to yaw or roll into the inop engine. Maybe @Black-Square can throw this on his list?
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What a bummer. The TDuke did perform OEI as expected in 2020, but I guess it's a bit botched in 2024. I just confirmed it. No matter what I did, I could not get the plane to yaw or roll into the inop engine. Maybe @Black-Square can throw this on his list?
@Buzz There are no flight model configuration differences between MSFS 2020 and 2024, so this would be the result of another undocumented change in MSFS 2024, if so.
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@Buzz There are no flight model configuration differences between MSFS 2020 and 2024, so this would be the result of another undocumented change in MSFS 2024, if so.
I kind of expected that to be the case.
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I'm going to take a guess that @Black-Square has way too much on his plate to fix this, so... I am willing to pitch in to find a solution. Does anyone know where to start in the config file?
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I haven't much flown the turbine version (yet) nor used 2024 much (yet), but I had 15 mins to burn so took a quick look through the dev mode options (of which I am not well acquainted either). Curiosity sometimes gets the better of me!
The complete lack of yaw when doing drastic things with either engine is very apparent. I didn't find anything of real use, but the 'sim forces' visualiser shows that the prop forces on the turbine version might be acting too close to the centreline (likely in the same location as the piston version's props; perhaps a carryover), but this wouldn't cause the issue alone of course. Thought I'd post it nevertheless, in case relevant for a future fix.
I've drawn the approximate centres of the prop blade force animations. Here's one engine running and one at cut-off. No yaw at all as mentioned.
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I haven't much flown the turbine version (yet) nor used 2024 much (yet), but I had 15 mins to burn so took a quick look through the dev mode options (of which I am not well acquainted either). Curiosity sometimes gets the better of me!
The complete lack of yaw when doing drastic things with either engine is very apparent. I didn't find anything of real use, but the 'sim forces' visualiser shows that the prop forces on the turbine version might be acting too close to the centreline (likely in the same location as the piston version's props; perhaps a carryover), but this wouldn't cause the issue alone of course. Thought I'd post it nevertheless, in case relevant for a future fix.
I've drawn the approximate centres of the prop blade force animations. Here's one engine running and one at cut-off. No yaw at all as mentioned.
@Mustang I just checked the model and the configurations, and the correct thrust centerline distance should be 6.8ft, whereas it's currently 6.0ft. It's not a holdover from the piston engines, which have the same centerlines, so I'm not sure where that came from. I've fixed it for the next version, but I suspect the change in performance will be pretty minimal. You're welcome to test it yourself. Look for the
Engine.0, andEngine.1lines near the top of the engines.cfg, and replace them with the following lines:Engine.0 = 6.9, -6.8, 0.7 Engine.1 = 6.9, 6.8, 0.7
