Built and tested on low physics on my android mobile. With that being said, I recommend medium or higher. It's a little bit fragile in high speed turns on low. It rolls a little to the right. I can't figure out how to fix it. It's a little nose heavy when armed and a little tail heavy when empty. This is a fantasy multi-task fighter that is loosely based on the A-6. It has a rotating rear engine and is fully armed. The button are as follows 1 detaches from base/+throttle controls rear gear. Gear up controls front gear. 2+VTOL down opens bay doors. 3 drops payload. 4 fires "Stumblebee" air to ground missles. 5&6 fire air to air missles. Before takeoff be sure to hit 1 to detach from the base and then hit 1 again to disengage the rear landing gear. Then throttle up.Thanks to CTracerx for the rotators, and I used that ballast block too, and he helped with the name too. This was a fun build, I hope you guys enjoy it. .