BL420 Ducted Fan Outrunner, 3800Kv

Key Features

Ideal for single ducted fan models from 16 to 28 ounces or twins up to 56 ounces
High-torque alternative to inrunner brushless motors
High-quality construction with ball bearings and hardened steel shaft
Quiet, lightweight operation, just 2 oz (58 g)
Efficient operation with external radial rotor design
Slotted 6-pole outrunner design
Ideal for ducted fan models up to 325 watts

Overview

The great performance and small size of the E-flite 420BL ducted fan motor make it a perfect match for single- and multi-ducted fan models. The high rpm per volt (3800Kv) design allows for high rpm capability on most 66mm fan units.

Product Specifications

Type:	Outrunner (for Ducted Fan use)
Size:	BL 420
Bearings or Bushings:	Bearings
Wire Gauge:	18AWG
Recommended Prop Range:	66mm Fan Unit (3-blade fan)
Voltage:	9.6–12V
RPM/Volt (Kv):	3800
Resistance (Ri):	.03 ohms
Idle Current (Io):	1.80A
Continuous Current:	25A
Maximum Burst Current:	32A (15 sec)
Cells:	3S Li-Po or 8-10 Cells Ni-MH/Ni-Cd
Speed Control:	25–40A Brushless
Weight:	58 g (2 oz)
Overall Diameter:	28mm (1.10 in)
Shaft Diameter:	.09 in (2.3mm)
Overall Length:	1.20 in (30mm)

Needed to Complete

25A to 40A Brushless ESC

Ducted Fan unit (ideal for 66mm)

11.1V 2100mAh LiPo

Articles, Reviews, How-Tos & More

BL420 Ducted Fan Outrunner, 3800Kv [EFLM1340DF]

Retail Price: $56.99

Selling Price:$45.99*

*Avaliable at participating retailers