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Scorpion S-4020-16 Brushless Outrunner

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Scorpion S-4020-16 Brushless Outrunner


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Scorpion Competition Series Brushless Motors are built from the best materials available, and are designed to provide both quality and performance at an affordable price. Scorpion starts with high quality aluminum alloy parts that are produced on the latest CNC milling machines. These parts are then gold anodized to provide a beautiful, long-lasting finish. The stators are made with 0.35mm laminations to give maximum efficiency, and minimum Eddy current losses. The stators are epoxy coated to prevent shorts, and are wound with wire that is rated at 180 degrees C (356 F). The magnets used in Scorpion Motors are rated for operation at 200 degrees C (392 F), making a motor that is virtually impossible to burn up in normal use.

All Scorpion 40mm motors come with pre-tinned power leads that are ready for yout favorite style connector, and include a complete hardware package that contains a cross style backplate mount with 4 screws, and threaded shaft prop adapter.

Stator Diameter: 40.0 mm (1.575 in)
Stator Thickness: 20.0 mm (0.787 in)
No. of Stator Arms: 12
Magnet Poles: 14
Motor Wind: 16 Turn Delta
Motor Wire: 18-Strand 0.25mm
Motor Kv: 415 RPM / Volt
No-Load Current (Io) @: 10 v 0.94 Amps
Motor Resistance (Rm): 0.030 Ohms
Max Continuous Current: 70 Amps
Max Continuous Power: 1500 Watts
Weight: 304 Grams (10.72 oz)
Outside Diameter: 48.9 mm (1.925 in)
Shaft Diameter: 5.98 mm (0.235 in)
Body Length: 46.15 mm (1.816 in)
Overall Shaft Length: 78.40 mm (3.086 in)
Max Lipo Cell: 6s
Motor Timing: 5deg
Drive Frequency: 8kHz

  • Kv(rpm/v) 415.00
  • Max Current (Motor) (A) 70.00
  • Resistance (mh) 30.00
  • Max Voltage (V) 22.00
  • Power (W) 1500.00
  • Shaft A(mm) 6.00
  • Length B (mm) 46.00
  • Can Diameter C(mm) 49.00
  • Can Length D(mm) 25.00
  • Total Length E(mm) 79.00

Dimension Diagram Guide

  • attributeset-10


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xener | Verified Buyer

  • Overall
  • Quality
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Customer Rated

Aug 14, 2013

Best motor for any 60" aerobatic plane.
Use 6S 40C and xoar 16x8 for best performance.

Thank you hobbyking for matching price with scorpion systems.
may be some lowering cost of other scorpion`s motors could help with selling `em, they are better than AXI :-)

Ian | Verified Buyer

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Customer Rated

May 14, 2013

Awesome motor. I have this in Sebart 50e on 6s 5000 mah with 16 x 12 apc prop. 12 min flight time and unlimited vertical with ease.

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