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Turnigy Aerodrive SK3 - 4250-410KV Brushless Outrunner Motor

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Turnigy Aerodrive SK3 - 4250-410KV Brushless Outrunner Motor


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Turnigy SK3 brushless motors are yet another step forward in motor evolution.

Once again we instructed our engineers to develop a motor that would not only rival but surpass the quality of the leading motors on the market today using the best quality magnets, bearings, and materials available.

The result is an outstanding series of motors that are efficient, strong, and robust enough for the most discerning modeler.

All of the SK3 series use quality double-shielded bearings, sintered neodymium magnets (the strongest type of permanent magnet commercially available), and a string wound stator to ensure accurate and consistent winding each and every time.

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

• Double shielded bearings
• Sintered neodymium magnets
• String wound stator
• High-quality finish
• Super-smooth operation

Turns: 12T
Voltage: 2~6S LiPo
RPM/V: 410KV
Internal resistance: 0.026 Ohm
Max Loading: 55A
Max Power: 1200W
Shaft Dia: 5.0mm
Bolt holes: 25mm
Bolt thread: M3
Weight: 260g
Motor Plug: 3.5mm

Mount & screws
Prop adapter

Performance Data (2S):
24x10: 251W, 36A, 2032g static thrust
25x12.5: 312W, 46A, 2489g static thrust
26x15: 370W, 55A, 2896g static thrust

Performance Data (3S):
19x10: 383W, 36A, 2589g static thrust
20x12: 492W, 48A, 3241g static thrust
21x12: 551W, 54A, 3510g static thrust

Performance Data (4S):
16x12: 566W, 40A, 3414g static thrust
17x12: 667W, 48A, 3852g static thrust
18x12: 770W, 55A, 4276g static thrust

Performance Data (6S):
14x8.5: 861W, 41A, 3905g static thrust
14x10: 969W, 46A, 4450g static thrust
14x12: 1100W, 53A, 5129g static thrust

  • Kv(rpm/v) 410.00
  • Max Current (Motor) (A) 55.00
  • Resistance (mh) 26.00
  • Max Voltage (V) 23.00
  • Power (W) 1310.00
  • Shaft A(mm) 5.00
  • Length B (mm) 58.00
  • Can Diameter C(mm) 42.00
  • Can Length D(mm) 50.00
  • Total Length E(mm) 80.00

Dimension Diagram Guide

  • attributeset-10


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NC | Verified Buyer

  • Overall
  • Quality
  • Value


Mar 12, 2022

Good service as usual, good quality, shipping time ok

Gregor | Verified Buyer

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Oct 22, 2021

Well-assorted and qualitatively appealing accessories and special small parts offered comparatively cheaply - great!

Olaf | Verified Buyer

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Sep 16, 2021


Felix | Verified Buyer

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Fair Prices

Jul 16, 2021

HK where I like to shop because I buy at fair prices.

Gus | Verified Buyer

  • Overall
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It works

Jun 05, 2021

It works and is what I expected it to be.

Gordon | Verified Buyer

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Nice Product

May 29, 2021

Nicely made, quality product, recommended.

Werner | Verified Buyer

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Buy recommendation

May 03, 2021

Very happy with the performance and the price is good too!
For long flight times with low load I use 12x8, for efficient load 13x8, for medium to heavy loads 14x8 and 14x10, for maximum load in continuous operation with good cooling I use 15x10 without any problems. 16x8, on the other hand, is not suitable as the motor can then overheat.

Tb | Verified Buyer

  • Overall
  • Quality
  • Value

Prop adaptor poor quality

Mar 17, 2021

The motor operates as it should. However the alloy prop adaptor is badly designed. It is small diameter alloy with a hollow shaft. It’s only a matter of time before it snaps. In true HobbyKing style, parts are not available and the “notify me” request sits in limbo today. Without the prop adaptor, the motor is useless.

Patrick | Verified Buyer

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It's okay

Jan 29, 2021

It's okay.

John | Verified Buyer

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  • Quality
  • Value

Smooth running motor - eventually

Jan 25, 2021

This motor was bought to power a 4m scale glider in FES mode. To accommodate a collet drive for a folding prop, the shaft had to be reversed - a collar is provide with the motor to enable this to take place. To remove the shaft the set screws have to be remove and the circlip, at the back of the motor removed ( the circlip is not needed again but the brass washer needs to be retained).
The set screws are glued in and are impossible to loosen with an Allen key. The trick is to apply a few seconds of heat, from a pin-point blowtorch flame to the setscrews (one at a time), protecting the motor with a thick, wet cloth. The screws then easily release and the shaft can be removed and reversed in the normal way.
The motor is now installed in the model, with a Plush 60 ESC, 6S lipo and a 14x7 Cam carbon folding prop. Current draw is about 35 amps giving 700+ watts - well within the motor's spec.

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Customer files
SK3-4250(DT3530-14P) MOTOR (edited).pdf Download [127]
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