BL420 Ducted Fan Outrunner, 3800Kv

Street Price: $49.99
Mfgr: Horizon Hobby
Brand: E-flite
URL: BL420 Ducted Fan Outrunner, 3800Kv
Application: Plane
Nominal Size: 420
LiPo Cells: 3s
Configuration: Outrunner
Stator Dia: 0 mm (0.00")
Stator Thickness: 0 mm (0.00")
Kv: 3800
Outside Dia: 28 mm (1.10")
Length: 30 mm (1.18")
Shaft Dia: 2.3 mm (0.09")
Weight: 58.0 grams (2.05oz)
Max Continuous Power: 325 volts
Max Continuous Current: 25.0 amps
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Manufacturer's Description

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


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.