Microsoft Flight Sim v5.0, v5.1

Top 1 Gear

Castle left 2 - Flaps - notch 2
Castle up 3 - Flaps up
Castle down 4 - Flaps - full down
Castle right 5 - Flaps - notch 1
Castle release - 

Hat left 6 - Left Differential Brake
Hat up 7 - Nose down trim
Hat down 8 - Nose up trim
Hat right 9 - Righ Differential Brake
Hat release - 

Trigger 10 - brakes
Middle 11 - lights
Bottom 12 - autopilot
