"S" - turns...

[jcomm 5,939]

After having installed FSX Gold, mainly to be able to fly this great add-on, I used the usual recomended tweaks, and everything is perfect and smooth.

 

The FPS are locked ( in FSX ) at 30, the V-Sync set through Nvidia Inspector, but today I decided to disable V-Sync, and set the FPS to Unlimited.

 

Went flying, first the A2A C172, then the PMDG 777, using RWW injected,, which is rainy and windy at all levels around the Iberian Peninsula.

 

With from 24 to 100+ FPS I was really happy and had, apparently, no problems. Then, during one of the legs, wind winds at FL370 around 90 knot from 3 o'clock, I experienced, for the very first time in my PMDG user life, S-turns...

 

The ND started showing them, and then I switched to an external view. The aircraft kept S-turning along the route, always overshooting and FPS were sometimes very high ( 100 or more! ).

 

Well, since the only thing I had modified was V-Sync and FPS limiting, I closed FSX, went back and set FPS limited at 30 and V-Sync, and repeated the very same flight, just a few minutes later, facing the exact same winds at cruise after taking of from LEMD. This turn around I experienced nothing but perfect following of the route.

 

Might it have been caused by having set unlimited FPS?