My first upload and build of this plane!- Able to reach 40,000 feet and top speed just past 600 mph. Takeoff Directions- Change the Vtol direction to forwards then power to 50%. Once at around 100- 120 mph use the first detacher and pull up. Make sure the sled doesnt blow up or you will have no fuel no once up at good hight pull on the brakes. The front wings will snap off if over 740 mph from dives, otherwise have fun!