E-Flite Park 400 Brushless Outrunner Motor, 740Kv

Functions

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

Introduction

The great performance and small size of this engine makes it ideal for small 3D and other park leaflet designs. The external rotor style gets rid of the requirement for a gearbox, conserving you important weight to get the maximum efficiency out of the model.



You will require...
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 Existing (Io): .55 @ 10V (no load present)
Shaft Size: 1/8 in (3.17mm)
Overall Length: 1.15 in (29mm)
Weight: 56 g (2.0 oz)
Overall Size: 1.10 in (28mm)
Size: 1.1 in (28mm)
Constant Existing: 7A
Optimum Burst Current: 10A
Cells: 6–10 Ni-Cd/Ni-MH or 2–3 Li-Po
Speed Control: 10–20 amp brushless