When it's time to decide which electric power train to choose, it has become a no brainer for us. Just call Andreas Reisenauer, tell him your model data and expected performance and in no time you have a dead on solution. This time we got the following proposal:
- gear box MotorChief 1:5 with motor Scorpion HK-5020-700KV
- folding prop Freudenthaler RFM 24 x 12 with 90 mm middle part
- 12 s LiPo (Matjaz went for two 6s, 16.000 mAh packs!)
- YGE 120 HV ESC*
Needles to say, the field measurements confirm Andreas's predictions: the motor consumes 75 to 78 A at 44 V and turns the prop at very strong 6.800 rpm. The start takes a really short roll distance and climb rate is as comfortable as it gets.
* A short piece of plastic tubing from the hollow nose cone to the ESC works wonders in hot summer days!