HACKER ENGINE A20-6 XL 10 POLE + 4.4: 1 EVO

Brushless, 10-pole A20 outrunner motor with 4.4: 1 gear from the German company Hacker. It offers excellent performance at the lowest weight. The engine is ideal for light F3J class sailplanes and similar ones with a narrow fuselage. The company also used efficient neodymium magnets.

Technical data:

• power range: max. 300 W (15 seconds)
• voltage: max 16.8V (4S)
• max current: 44.4 A
• idle current at 8.4V: 3.4A
• internal resistance: 0.020 Ohm
• Motor KV: 2500 rpm.
• KV at gear output: 568 rpm.
• number of poles: 10
• weight: 130 g
• shaft diameter: 4 mm
• outer diameter: 28 mm
• length (with shaft): 82 mm
• recommended propellers: APC 16x8 (3S) or 13x11 (4S)
• recommended regulator: 40A to 55A (brushless)

Set contains:

• 4,4: 1 gear motor