Specifications
Diameter: 25mm
Case Length: 31mm \(1.2 in\)
Weight: 56g \(2.0 oz\)
Shaft Diameter: 2.3mm \(.09 in\)
Kv: 3500 \(rpms per volt\)
Io: 1.65A @ 10V \(no load current\)
Ri: .65 ohms \(resistance\)
Continuous Current: 19A
Max Burst Current: 23A

Key Features
Ideal for small ducted fan models from 15- to 25-ounces using 3-cell 2100mAh Li-Po packs
High torque alternative to inrunner brushless motors
Slotted 9-pole Outrunner design
High quality construction with ball bearings and hardened steel shaft
Quiet, lightweight operation – just 2 ounces \(56 g\)

Overview
The great performance and small size of the E-flite 400BL ducted fan motor make it a perfect match for single- and multi-ducted fan models. The high RPM per volt \(3500Kv\) design allows for high RPM capability on most 66mm fan units.

Recommended with:
20A Brushless ESC \(2\)
66mm 3 bladed Ducted fan unit \(2\)
11.1Z 2100mAh Li-Po \(2\)