The recent freebie Hawker Rayethon does not work in P3D V3.1. The night textures are the "best" see-thu textures I've ever seen. LOL
"does not work" doesn't tell us very much.
Try lowering (as an experiment) your slides, autogen, clouds, shadows, and AI.
Then fly the aircraft, if it looks better than your video card or computer can't handle graphic intensive aircraft.
Let us know how you do.