Product Information: For Sport aerobatics and sailplanes up to 2300 grams -Diameter : 36 mm/1.42 inch -Length : 60 mm -Shaft Dia. : 5 mm -Rotor length: 20 mm -Weight : 155 grams -Poles : 6 -Internal resistance: 29 -No load current(lo) : 1.5 -No load KV : 2000 -Max Current: 70 A -Max efficiency: 85% -Power Nominal: 600 Watts -Recommended Props: 8 x 5 for sports model 10 x 6 for sailplane