Electric Flight in Australia

Scorpion 3020-14 outrunner motor

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Peter Pine

PO Box 1050
Kingscliff 2487
Phone (02) 6674 0397
Fax (02) 6674 2037

E-mail: ppine@northnet.com.au

Back to Scorpion Motors Page

Motor Specifications
Io = 2.04A at 10V
Kv = 944 rpm/volt
R = 0.040 Ohms
Length = 37.9mm
Diameter = 37.5mm
Weight = 154g
Continuous current accepted = 46A
Maximum continuous power = 800W
Shaft = 5mm carbonised steel (protrudes both ends)
Collet-type prop adaptor and back-mount supplied
Motor fixing = four 3mm bolts supplied
Male bullet connectors fitted to motor
Female bullet connectors supplied
Recommended controller = Scorpion 55A

A sports LRK (outrunner) brushless motor for small R/C aircraft up to 3.0 kg powered by 10-16 cells or 3-5S LiPo; suitable for cabin models, scale models, aerobatic models and gliders. No gearbox is required because of the high torque of this motor type.

All Scorpion 30mm motors have 3 ball bearings to support the rotating housing.

The S30 series of motors from Scorpion all have 30mm diameter stators - there are 12 stator arms and 14 magnets in the rotor housing. The stator is 20mm long in this 3020 version. The motor wind is a 14 turn delta wind with 16 strand 0.21mm wire.

Prop for 3S - 13x8"
Prop for 4S - 11x7"
Prop for 5S - 10x5"

Motor guaranteed for two years

New super-low price posted 18-5-08! Price now = $72

Some power recommendations
Prop	Prop type	Volts	Cells	Revs per minute	Amps	Watts In	Thrust Grams	Recommended controller
10x5	APC	10.5	3S	8,725	24	175	1085	Scorpion 35A
12x8	APC	10.5	3S	7,375	36	380	1572	Scorpion 45A
13x8	APC	10.5	3S	6,975	42	598	2023	Scorpion 70A
9x6	APC	14.0	4S	11,475	24	338	1536	Scorpion 35A
10x7	APC	14.0	4S	10,750	34	480	2028	Scorpion 45A

Motors that compare to the Scorpion 3020-14:
Atlas 2921/10, 990 Kv
Axi 2820/12, 990 Kv
Dualsky XM3548CA-5, 850 KV
E-Flite Power 25, 870 Kv
Hacker A30-12L, 1000 Kv
Himax HC3522-0990
Hyperion Z3019-12, 900 Kv
HXT 35-42C, 1000 Kv