Electric Flight in Australia

Scorpion 4020-16 outrunner motor

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Peter Pine

PO Box 324
Pottsville Beach 2489
Phone (02) 6676 1437
Fax (02) 6676 2831

E-mail: ppine@northnet.com.au

Back to Scorpion Motors Page

Motor Specifications
Io = 1.53A at 21V
Kv = 415 rpm/volt
R = 0.030 Ohms
Length = 41.2mm
Diameter = 48.7mm
Weight = 304g
Continuous current accepted = 70A
Maximum continuous power = 1500W
Shaft = 6mm carbonised steel (protrudes both ends)
Collet-type prop adaptor and back-mount supplied
Motor fixing = four 4mm bolts supplied
Male 4mm bullet connectors fitted to motor
Recommended controller = Scorpion 90A

An LRK (outrunner) brushless motor for R/C aircraft up to 8.0 kg powered by 12-18 cells or 4-6S LiPo; suitable for cabin models, scale models, aerobatic models and gliders - this motor can easily replace .90 two stroke engines. No gearbox is required because of the high torque of this motor type.

All Scorpion 4000 series motors have 3 ball bearings to support the rotating housing.

This is one gutsy motor - capable of high amps and great power output up to 1500W!

The S40 series of motors from Scorpion all have 40mm diameter stators - there are 12 stator arms and 14 magnets in the rotor housing. The stator is 20mm long in this 4020 version. The motor wind is a 16 turn delta wind with 18 strand 0.25mm wire.

Prop for 4S - 20x13"
Prop for 5S - 19x12"
Prop for 6S - 17x10"

Motor guaranteed for two years

Price now = $105

Some power recommendations
Prop	Prop type	Volts	Cells	Revs per minute	Amps	Watts In	Thrust Grams	Recommended controller

Motors that compare to the Scorpion 4020-16:
Dualsky XM5050CA-13, 350 KV
E-Flite Power 60, 400 KV
Hyperion Z4020-16, 504 KV
HXT 50-55A, 400 KV

Click here to see the full range of Scorpion 4000 motors.