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RotorStar Brushless Outrunner Helicopter - 2839-4300kv (450 size heli)

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RotorStar Brushless Outrunner Helicopter - 2839-4300kv (450 size heli)

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RotorStar Series brushless motors offer the absolute best quality, performance and value for your high performance helicopter model. Each and every RotorStar motor is thoroughly inspected and tested to ensure the high efficiency and top performance required for meeting the demands of 3D helicopter pilots.
RotorStar Series motors are top quality brushless outrunners designed specifically for use in todays high performance helicopter models.
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 manufacturers 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 RotorStar motors are suited to modelers who are seeking a top quality brushless helicopter motor without compromise.

*Perfect for HK450/Trex 450/Rave 450/Beam E4/Blade 450 or any other 450 size helicopter.

Turns: 8T Delta
Voltage: 3S Lipoly
RPM/V: 4300kv
Motor Poles: 6
Internal resistance: 0.0155 Ohm
Max Loading: 60A
Max Power: 660W
Shaft Diameter: 3.175mm
Shaft Length: 15.7mm
Screw Mounting Spacing: 16mm (M3x4)
Weight: 79.5g
Motor Plug: 3.5mm Bullet Connector

  • Kv(rpm/v) 4300.00
  • Max Current (Motor) (A) 60.00
  • Resistance (mh) 0.00
  • Max Voltage (V) 11.00
  • Power (W) 660.00
  • Shaft A(mm) 3.18
  • Length B (mm) 39.00
  • Can Diameter C(mm) 28.00
  • Can Length D(mm) 24.00
  • Total Length E(mm) 54.00

Dimension Diagram Guide

  • attributeset-10


  • RotorStar Brushless Outrunner Helicopter - 2839-4300kv
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wiseTreker | Verified Buyer

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Customer Rated

Sep 21, 2015

I have almost a hundred flights on this motor and it has held up well. I am able to maintain 3600rpm head speed on 3S at 90pcnt throttle with governor. Absolutely no bogging even on Tic Tocs. Excellent value, tremendous power, and bearings that hold up over time. I would recommend this motor for a 450 class helicopter.

Hamlett | Verified Buyer

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Certified Buyer Rated

Jul 29, 2015

Well made and light got a problem with the spec's on the box don't match the motor when it comes to the distance between mounting holes. box states 16MM motor about 11MM

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