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Power 52 Brushless Outrunner Motor, 590Kv, 4mm Bullet

Item No.
E-flite - EFLM4052A
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Product $126.99
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Estimated Total: $126.99
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Designed to deliver clean and quiet power, the Power 52 Brushless Outrunner Motor, 590Kv is designed for 40- to 50-size sport and scale airplanes, 40- to 50-size 3D airplanes, as well as models requiring up to 1650 watts of power.

Needed To Complete

80-Amp brushless ESC
4S–6S Li-Po or 14- to 16-cell Ni-MH/Ni-Cd Battery
14 x 7 to 12 x 8 Propeller

Key Features

  • Equivalent to a 46- to 55-size glow engine for 5.00- to 7.50 lb (2.20 – 3.40 kg) airplanes.
  • Ideal for 40- to 50- size 3D airplanes up to 6.00 lbs (2.70 kg)
  • Ideal for models requiring up to 1650 watts of power
  • High-torque, direct drive alternative to inrunner brushless motors
  • Includes mount, prop adapters and mounting hardware
  • Quiet, lightweight operation
  • External rotor design 6mm shaft can easily be reversed for alternative motor installations
  • High-quality construction with ball bearings and hardened steel shaft
  • Slotted 14-pole outrunner design

Product Specs

Recommended Prop Range
4S: 14 x 7 - 15 x 8; 5S: 13 x 8 - 15 x 7; 6S: 11 x 10 - 12 x 8
Shaft Diameter
Connector Type
4mm Bullet
Idle Current (Io)
2.3A @ 18.5V
Input Voltage
Recommended Speed Control
RPM/Volt (Kv)
Shaft Length
3.1 in (80mm)
Outer Diameter
2.00 in (50mm)
Motor Design
Adjustable Timing
Motor Type


You can run two motors off of one 6S battery but the electrical load would double. The batteries C-rating would need to be high enough to avoid hitting low-voltage-cutoff (LVC) prematurely. We'd suggest 100C or above as a minimum. Having telemetry to monitor flight pack voltage and warn you of approaching LVC would help avoid deadstick landings - something you don't need on a large RC C-130. Another route is to just use 4 smaller 6S batteries to keep the power systems separate.