M600 has such excessive idle thrust, that it is almost impossible to slow down during descent. Real turboprops should start slowing down rapidly when thrust is set to flight idle, because the propeller acts like a speedbrake.
At lower altitudes, M600 can only descent around -300 fpm with throttle on idle while keeping the same speed.
REPRODUCTION STEPS
Please list clear steps you took in order to help our test team reproduce the same issue:
Take off with M600 and climb to 5000ft.
Start descending in FLC mode set to maintain 130kts and set idle thrust.
Observe maximum vertical speed is only around -300fpm.
A windmilling propeller acts more like reverse thrust than a speedbrake. In any case, this seems excessively low. I don’t think there is any default aircraft in MSFS with accurate windmilling drag. I did some experiment with the TBM in FS2020 days, the conclusion was that propeller feathered or windmilling resulted in the same glide ratio. Wonder if this is a MSFS wide problem still.
It is definitely frustrating having the throttle set to idle and the aircraft won’t drop below about 88–95 knots. I have done two legs of my around-the-world tour in this aircraft. Landing last night on a runway around 3,000 feet, it wanted to just glide along, and it took 1,000 feet to touch down; when you flare, the aircraft wants to ascend and climb again.
it is probably the axis settings problem. But if I remember C208 def. what does also on taxi, I’m not surprised. They did probably some workaround with set some resistance braking effect on ground with TBM???
Out of curiosity, have you tried the same descent with the throttle axis temporarily unassigned and using keyboard idle only? I’d want to rule out a little axis noise or reverse/condition mapping before calling it purely flight model, especially because the Caravan/TBM have had similar odd idle or ground behavior in the sim. If it still does it with a clean default binding, that sounds like a useful repro case.
We have created an internal ticket to see if our team already has this logged, and if not they will attempt to reproduce the issue and create a new bug report. This item is now marked as feedback-logged. If there is an existing bug report or one is created, we will move this thread to bug-logged.
