Rob it's the 72" wing model and I'm using the YS 110FZ. Southern..........don't start that. That's RVator's OMP Katana with a OS 91FS. He's only flew it once and mine is yet to be flown. Maybe this week end. They're calling for 75 degrees this Saturday. I haven't ran the engine since the crank was bent in the last crash. Here's how I set up my fuel dots and remote starter.