FEATURES: For Sport airplanes up to 6.5lbs (2950g) and 3D airplanes up to 4lbs (1845g) Designed for explosive acceleration and maximum torque * INCLUDES: Great Planes ElectriFly RimFire .32 42-50-800 Brushless Outrunner Electric Motor Mount Prop Adapter * REQUIRES: Brushless Motor-compatible 45 amp Electronic Speed Control Propeller: 12x6 - 13x8 electric