E-Flite Park 400 Brushless Outrunner Motor, 740Kv

Features

Slotted 12-pole outrunner style
Prop adapter (EFLM1923) and gold-plated adapters consisted of
Outstanding motor for small 3D and scale park flyers weighing 10–20 oz (280–560 g)
Motor mount consisted of
Replacement for Speed 370 and Speed 400 applications
Quiet operationlow sound compared to gearbox systems

Summary

The piece de resistance and small size of this engine makes it ideal for small 3D and other park leaflet designs. The external rotor style eliminates the requirement for a gearbox, saving you valuable weight to obtain the maximum efficiency out of the model.



You will need...
10–20A brushless ESC
10x7 to 12x3.8 prop

7.4V or 11.1V 860–1320mAh Li-Po

 E-flite Motor Comparisons (160 KB)

Specs

Type: Brushless
Size: Replacement for 370/400
Bearings or Bushings: One 3.175 x 7.94 x 3.6 Bearing, and One 3.175 x 9.525 x 3.97 Bearing
Recommended Prop Variety: 10x4.7-12x3.8
Voltage: 7.2–12
RPM/Volt (Kv): 740 (rpms per volt)
Resistance (Ri): .26 ohms
Idle Present (Io): .55 @ 10V (no load current)
Shaft Diameter: 1/8 in (3.17mm)
Total Length: 1.15 in (29mm)
Weight: 56 g (2.0 oz)
Total Diameter: 1.10 in (28mm)
Diameter: 1.1 in (28mm)
Continuous Present: 7A
Maximum Burst Current: 10A
Cells: 6–10 Ni-Cd/Ni-MH or 2–3 Li-Po
Speed Control: 10–20 amp brushless