Electric Flight in Australia


Scorpion 1804-1650 outrunner motor

How to Order

 Peter Pine

1/40 Kellehers Road
Pottsville Beach 2489
Phone (02) 6676 1437
Mobile (0407) 732 440

E-mail: ppine@northnet.com.au

Back to Scorpion Motors Page
A sports LRK (outrunner) slowfly brushless motor for small R/C aircraft. No gearbox is required because of the high torque of this motor type.

The S18 series of motors from Scorpion all have 18mm diameter stators - there are 9 stator arms and 12 magnets in the rotor housing. The stator is 4mm long in this 1804 version. The motor wind is a 24 turn Y wind with 1 strand 0.335mm wire.

Motor supplied with 3.5mm bullet connectors and heat shrink, a cross-style 18mm backplate mount with 4 x M2 screws, a wobbly-style prop adaptor with 2 O-rings for GWS style propellers. Prop for 2S - 8 x 4"

Performance on 2S with an 8 x 4" prop = 3.2A and 5,900 rpm developing 150g of thrust.

Motor guaranteed for two years

Price: $69

Motor Specifications
Io = 0.56A at 10V
Kv = 1650 rpm/volt
R = 0.4 Ohms
Motor timing = 20 degrees
Drive frequency = 8 kHz
Body Length = 16mm
Diameter = 23mm
Weight = 12.0g
No load current = 2.5A @ 6.5V
Continuous current accepted = 5A
Maximum continuous power = 32.5W
Maximum LiPo = 2S
Shaft = 3mm carbonised steel

Back-mount supplied

Motor fixing = four 2mm bolts supplied
Bullet connectors supplied
Recommended controller = Hifie 10A