BL400 Ducted Fan Outrunner, 3500Kv

Street Price: $59.99
Mfgr: Horizon Hobby
Brand: E-flite
URL: BL400 Ducted Fan Outrunner, 3500Kv
Application: Plane
Nominal Size: 400
LiPo Cells: 3s
Configuration: Outrunner
Stator Dia: 0 mm (0.00")
Stator Thickness: 0 mm (0.00")
Kv: 3500
Outside Dia: 25 mm (0.98")
Length: 31 mm (1.22")
Shaft Dia: 2.3 mm (0.09")
Weight: 56.0 grams (1.98oz)
Max Continuous Power: 0 volts
Max Continuous Current: 19.0 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
  • Slotted 9-pole outrunner design
  • High-quality construction with ball bearings and hardened steel shaft
  • Quiet, lightweight operation—just 2 ounces (56 g)
  • Efficient operation with external radial rotor design


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.