Carl Petersen
Heliman
Location: Nashua, NH
| I ask Lucien over at Scorpion motors about motors for the Beam E4. Here's what he said:
| Quote |
| Carl Petersen,
For good sport flying and 3D, the Scorpion HK-2221-8 motor with a 45 amp ESC is a great combination. Using a 12 tooth pinion you can get good performance with decent battery life. Head speeds of around 3000 RPM will be obtained with this set-up. A good 20C 3-cell 2200mah Li-Po battery, such as our X-Caliber line would complete the power package.
If you want a bit more punch for 3D flying, switching to a 13 tooth pinion will bring the head speed up to around 3250 RPM.
If you are looking for higher levels of power, then the HK-2221-6 motor with a 55 amp ESC is the way to go. Start with a 10 tooth pinion for a head speed of 3100 RPM. An 11 tooth pinion will get you around 3400 RPM. If your head and blades are up to it, a 12 tooth pinion will get you close to 3700 RPM. For this motor, you will need to use either a 3-cell 20C 2500mah pack, or a 25C 2200mah pack.
If you really want to push the power envelope, you can go to a 4-cell set-up with the HK-2221-10 motor. This combination can get you in excess of 600 watts of power in extreme maneuvers, and will give as much power as any 450 class helicopter can take. With the higher voltage the motor draws less current, and gives similar headspeeds to the -6 set-up, but you can get 30% longer flight times due to the larger battery capacity of the 4th cell.
For me, the HK-2221-8 set-up is plenty of power, so that is a great place to start.
Hope that helps!
Lucien
|
Carl Petersen |
So hello to everyone. Some may know me on others rc forums with the same surname.
