You're both welcome, though I didn't do much beyond a glance at .cfg files and trying out various dev mode debug tools in the menu. Thanks Nick for the corrections. I'll make them just for the warm fuzzy feeling that fixing incorrect data always gives
Besides the 'show sim forces' debug option (earlier image), it's very interesting to see the different CFD visualisations at work. With one engine inop there is clearly a sudden loss in thrust, even a loss in the downward deflection on the adjacent air flow from the lack of prop wash over the inop engine's wing, but no yaw tendency or rudder forces/effects show up whatsoever (whether AP is engaged or not, in case of a hidden yaw damper interfering). A roll tendency occurs into the dead engine as you might expect, just no yaw.
That's in itself is interesting because it seems to show that MSFS decouples various aspects of the flight model; the forces and moments acting on the aircraft may not be purely a result of all the aerodynamic forces shown (else something else is blocking it from occurring). I know there are legacy and modern flight models, and various settings that are old or new - it must be a nightmare to keep track of which settings actually influence the aircraft and which are deprecated (and catching the undocumented ones) - so I don't envy any developer's job there (well I kind of do, in a different life).
I'm sure this one is 'on the list' to be investigated in due course anyway.
Regards,
Martyn
