Ideal for 3D models 4–6 oz (115–170 g), and sport and scale models 6–12 oz (170–340 g) or models requiring up to 55 watts of power.

Perfect for use in your 12-18 oz Parkflyer or Slowflyer RC model airplane, the Hacker A20-20L EVO brushless motor works best with 3 cell 11.1V LiPoly batteries. The powerful and efficient 12 pole "Outrunner" Brushless motor design creates massive torque, which will allow you to direct drive larger props without needing a gearbox...

Perfect for use in your 40-60 oz 3D-Aerobatic or Scale RC airplane. Works best with 3-5 cell 11.1-18.5V LiPoly batteries. Hacker A30 Series Brushless "Outrunner" motors use the latest technology. Engineered for high power and high efficiency using the finest quality components...

Build and fly your very own model airplane design. Using clear explanations, you will learn important design trade-offs and how to choose among them. The latest research and techniques are discussed using easy to understand language...