sodflyer
Veteran
Location: Frederick Colorado
| Rotor RPMChoco, if you're friends heli is flying around fine then it's enough to get the lift required for flight. The stock main motor pinion is a 10 tooth, in order to raise the head rpm you need to get closer to a 1:1 ratio so with that you need a higher tooth count on the pinion or lower on the main gear, I am using a 12 tooth pinion and it works great! I also have the 9 tooth pinion that wont lift off above 2" with full throttle so with that pinion my head speed is too low. Down there in Texas the altitude density is high enough to be able to gain lift at a lower head speed... I am at 5,600 + feet so it does not work here.... Jeff. |
