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E-flite BL400 DF Outrunner, 3500Kv

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Product Description

E-flite BL400 DF Outrunner, 3500Kv

E-flite BL400 DF Outrunner, 3500Kv

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)
  • Quiet, 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.


  • Type: Brushless
  • Size: 400
  • Bearings or Bushings: Bearings
  • Recommended Prop Range: 66mm Fan Unit (3 blade)
  • Voltage: 10 - 12
  • RPM/Volt (Kv): 3500 (rpms per volt)
  • Resistance (Ri): .065 ohms
  • Idle Current (Io): 1.60 @ 10V
  • Continuous Current: 19 A
  • Maximum Burst Current: 23 A (15 sec)
  • Cells: 6 - 10 NiCd / NiMh or 3 Li-Po
  • Speed Control: 20 Amp Brushless
  • Weight: 2.0 oz (56g)
  • Overall Diameter: 1.00 in (25mm)
  • Shaft Diameter: .90 in (2.3mm)
  • Overall Length: 1.20 in (31mm)

Needed to Complete:

  • 20A Brushless ESC
  • 66mm 3 bladed Ducted Fan unit
  • 11.1V 2100mAh Li-Po

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