As someone who has been intensely involved in the creation of flight dynamics for FSX for the past few years I'm curious if Prepar3d expands on FSX's capabilities or ( hopefully ) possibly replaces them with a more accurate set of subroutines. Does it for example provide for newer technologies such as vectored thrust ( an impossibility in FSX )??? What about propellers?? I have a c-27 i'm modeling and if i set the correct MOI for that propeller the engine wont even turn over in FSX.
What reasons should I as a flight dynamics engineer have for programming for your platform??

Pamela Brooker
Jade Island Flight Test Center ( JFTC )

That is a definite issue for us in the helicopter development area, things like autorotations are next to impossible to program into the fsx/P3D coding. Although one developer has more or less got a working autorotation going in their helicopter, we turn a product out about every 3-4 months and being able to program things like autorotation and settling of power (vortex ring state) would enable us to produce more accurate performance. Although I do understand that you are taking over someone else's work we look forward to advancements on that side of the development spectrum.

Collective and throttle have always been separate in FS, you just control the engine throttle with the prop pitch axis. (Assuming the governor is off.)

Si