I get 6.0-7 mins with all out flying and high head speed on the 450 T-Rex. My 600 with a 200 headspeed and mild 3d gets 6.5-7mins or so. With a 2300 headspeed and harder 3d i have to land at about the 5.5 min mark and thats an auto. Im using Thunder Power 2070 3SX in the 450 and Thunder Power 5000 6SX in the 600. Im sure i could go to the softer dampeners (grey) on the 600 and run a 1700 headspeed and get 10 mins of flight but thats not why we buy them right? Its meant to be rung out.


Best way for flight time increase, lower headspeed and smaller pinion to keep the amp draw down. Keep your flight smooth and level, no 3D and I can get 12 mins with my 450 and 10 with the 600 if i slow things down.