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  Item found in the following categories;
> Electric Motors > TURNIGY
> Electric Motors > TURNIGY RotoMax
> Electric Motors > Outrunners by size > Above 50mm


Turnigy RotoMax 50cc Size Brushless Outrunner Motor

Turnigy RotoMax 50cc Size Brushless Outrunner Motor
Turnigy RotoMax 50cc Size Brushless Outrunner Motor

Upgrade your 50cc size gas engine model with the Turnigy RotoMax 50cc Brushless outrunner motor. This motor will provide clean and efficient power for your large scale aircraft without the mess and hassle of nitro fuel.

When combined with a 10s Lipoly battery, 24x12/26x12" Propeller and a 180Amp ESC the RotoMax motor will supply punchy, responsive power that only an electric setup can provide.

This motor is specifically suited for carbon fiber & wooden propellers and features an IC style 4 bolt hole design. The shaft has also been tapped to suit a 4mm bolt to make fitting a spinner of your choice easy.

Battery: 10 Cell / 37V
RPM: 172kv
Max current: 120A
Watts: 5300w
No load current: 44V/1.65A
Internal resistance: 0.021 ohm
Weight: 1080g
Diameter of shaft: 10mm
Suggested ESC: 180A 12S Compatible
Suggested Prop: 24x12 Majzlik / 26x12 APC


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Kv(rpm/v) 172
Weight (g) 1080
Max Current(A) 120
Resistance(mh) 21
Max Voltage(V) 44
Power(W) 5300
Shaft A (mm) 10
Length B (mm) 102
Diameter C (mm) 80
Can Length (mm) 50
Total Length E (mm) 142
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Weight: 1380g Quantity: 
United States Warehouse In Stock View Item

  • Turnigy Monster-2000 200A 4-12S Brushless ESC

    Combo Price: $179.95   BACKORDER

  • XR Type B Beechwood 3D/SF Propeller 26x12

    Combo Price: $39.26   IN STOCK

  • 4mm Gold Connectors 10 pairs (20pc)

    Combo Price: $2.65   IN STOCK

  • TCF 26X12 High Precision Carbon Fiber Sport Propeller

    Combo Price: $33.87   IN STOCK

  • Turnigy Type A Beech wood 24x12 propeller

    Combo Price: $6.81   BACKORDER

  • TCF 24X10 HighPrecision Carbon Fiber Sport Propeller

    Combo Price: $30.71   IN STOCK

Further discounts available for registered & logged-in customers.
 Customer rated
Total of 68 discussions.
emilio  5 points - 7/14/2014
did anyone used this motor wiith 44,4 volt?tks
Ron  14 points - 6/20/2014
Hi There, Did anyone opened the motor to glue the spaces in between the magnets??? This was a thing to do to improve the quality of the HK-motors!!! Thanks!
Wayne Gillis  1 points - 6/12/2014
No where have I found out what the timing is for this engine. Does anyone know? I have it paired with a Turnigy dlux 160A HV Brushless Speed Controller (OPTO) and a Turnigy 22x10 3D prop. 2 X 35c 5300 6cell . As I advance above half throttle the engine started to surge stopped when throttle retarded ,on landing after a 4 min maiden flight the ESC was very hot to the touch the batteries warm the engine cool. I was asked by the guys at the field if I had set the timing? and throttle for the ESC. Any help would be greatly appreciated.
 Ron 14 points
Try 20-25...
Anton  2 points - 5/26/2014
Would this be appropriate for a home made e-bike or is it too powerful? And what esc and battery is good for it?
Abdul  4 points - 3/26/2014
Can any one please tell me about the torque of this motor ?
Customer Reviews
Overall Rating
2 thumbs up!
Excelente motor, acabamento de primeira linha, vou usar em um Sbach 342/ 60cc. Excellent engine, finish line first, I will use in a Sbach 342 / 60cc

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nice build,at idle on 24v the current was 3,7Amp.not like in the hk description 1,6Amp at44v

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I got impatient so retro fitted the rotomax into my Hanger 9 260 27pcnt, the whole conversion from DLE55 to rotomax took about 2hours and consists of 2 x 6s 5000mah turnigy Lipos, 160HV speedy and the prop off the DLE which is a 23x8 carbon Mej. Results on Eflite watt meter 4580watts @ 103 amps after 20sec

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Measured Data: Kv= 190; Ri=16mOhm; Io=2.3A@8V; Weight 1070gr. Motor has 28poles and 24 tooths. Mechanical precision very good. Winding could be better to come down with Ri to Hacker Q80-8M but at this price an excellent motor.

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Tried it some minutes ago with 21x10 woodprop. Batteries: 2x Rhino 6s1p 4900mAh 25C with more than 100 cycles. Current: max. 120A Voltage: 43V at full throttle Power: 5160 Watt Because the power will be even more with new batteries (with higher C-rate (>30C)) I will mount a Will try it again with new batteries and a 20x10 prop.

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