I really like testing new electronics. Improving the performance, feel and quality is something I continuously strive for. With the new LittleBee30A ESC’s a broader range of power setups are possible and I think I found the perfect combination for the Mini Tricopter. The Emax RS2205 2300kV drew too much current for the SN20A’s that we previously used. I was also concerned that the flight times would suffer with such a tiny motor. But it turned out that hovering flight time actually is the same (~14 minutes) as with the BE2208 on a 4S1800mAh battery. It’s not quite as efficient in the hovering throttle range, but the lower weight compensates for this, and it provides more thrust.
At full throttle this little motor draws 31A, producing 1200 grams of thrust, while swinging a 6×4.5 HQ prop. You would think this would fry the poor little copper strands in the motor, but with its built in cooling system which sucks air through the motor, cooling both the motor and the powerful N52 magnets, it can do this without overheating. This is quite amazing considering that the Emax RS2205 only weighs in at 30 grams with wires! It’s also incredible smooth thanks to the Japanese NMB Bearings, really high quality stuff right there.
With the Emax RS2205 the copter does feel more perky and crisp. The breaking force of the Emax motors are amazing, which gives a very accurate feedback.
If you plan on going over to the Emax setup, I highly recommend using some good quality batteries with high C-rating to feed these power hungry little beasts.