The 8, 10 and 14-pole outrunner motors of the A20 series are available in 4 lengths (S, M, L, XL), with a voltage range of 7.2V to 12.6V. As a result, they cover a wide range of applications from the 250g indoor model up to the 1.5kg electric glider. The A20 series has double ball bearings, has a replaceable 3mm shaft and can be mounted both in front of and behind the head frame/engine mount.
The weight-optimised high-end motor A20-12 XL EVO kv1039 with a weight of only 78 g is ideally suited for 3D models up to 550g and gliders up to 1.4kg.
Specifications:- max. power range [W] (max.15 sec.)300
- Turns12
- Idle current (I0) at 8.4V [A]1,2
- Internal resistance (Ri) [Ohm]0,075
- Recommended timing [°]20 - 25
- Switching Frequency [kHz]8
- Controller recommendation [A] (depending on setup)30 - 40
- Idle speed per volt (kv)1039
- Prop AdapterYes
- Mounting crossNo
- Gold plug mm (soldered)3,5
- Backmount mountableNo
- Front mountableYes
A20 external rotors are best suited for models up to 1.5kg. The 14-pole power packs provide excellent efficiency.
