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Turnigy SK3 Fandrive - 3994-850kv (120mm EDF)

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Turnigy SK3 Fandrive - 3994-850kv (120mm EDF)


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Turnigy SK3 Motors are the next leap forward in motor quality and design. We instructed the engineers to source the best quality magnets, bearings and materials available to them and develop a motor that would not only rival, but surpass the quality of many leading motor manufactures on the market today.

The result is an efficient, high caliber motor using quality double shielded bearings, sintered Neodymium magnets and a string wound stator ensuring an accurate and consistent winding each and every time.

The Turnigy SK3 motors are suited to modelers who are seeking a quality brushless motor without compromise.

Motor Type: 4 Pole Inrunner
Winding: 2.5D
Voltage: 12S Lipoly
RPM/V: 850kv
Internal resistance: 0.012 Ohm
Max Loading: 90A
Max Power: 3950W
Shaft Dia: 8.0mm
Weight: 554g
Motor Plug: 4mm Bullet Connector

  • Kv(rpm/v) 850.00
  • Max Current (Motor) (A) 90.00
  • Resistance (mh) 0.00
  • Max Voltage (V) 43.00
  • Power (W) 3950.00
  • Shaft A(mm) 8.00
  • Length B (mm) 96.00
  • Can Diameter C(mm) 39.00
  • Can Length D(mm) 94.00
  • Total Length E(mm) 125.00

Dimension Diagram Guide

  • attributeset-10


  • Turnigy Super EDF SK3 Motor
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Christian | Verified Buyer

  • Overall
  • Quality
  • Value

Top Motor

Aug 01, 2019

Sehr guter Motor, mit hervorragender Leistung.

pilotir | Verified Buyer

  • Overall
  • Quality
  • Value

Customer Rated

Aug 17, 2012

This motor is ideal for the impeller 12 Blade High-Performance 90mm EDF Ducted Fan Unit and achieves traction 5.5kg (12 lb) at a current of 99 amps, 44 volts at a voltage of 2 pieces Turnigy nano-tech 8000mAh 6S 25 ~ 50C Lipo Pack and Power 4320 watts /
at a current of 90 amperes at a voltage of 44 volts and 4000 watts load capacity 5.15 kg of thrust (11,3 lb). Have a pleasant flight.

roncherry | Verified Buyer

  • Overall
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Customer Rated

May 26, 2012

Very nice motor.

12S 5000mah 30C, Zippy

120amp Castle (low timing) (180amp Turnigy Delux would not handle it)

120mm 4 blade ChangeSun Fan (sold here)


85 amps, 3500watts and 10.5lbs static thrust

Warm but not hot.

Buzzlightyear71 | Verified Buyer

  • Overall
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  • Value

Customer Rated

Feb 07, 2012

Great motor, could use larger cooling holes in can. Would like to see a more versatile version as shaft is 25mm long, would like a shorter shaft of 12mm so as to be able to fit onto Haoye fans.

Would also like to see a 1200KV version for 8S and 10S use.

Make it happen HK, would definately improve sales if people can utilise this motor in fans other than CS 120mm.

Good motor overall.

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SK3 with Lander 120mm DF Download [86]
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