Scorpion HKIII 4020-1100KV

Scorpion HKIII 4020-1100KV



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The Scorpion HKIII-4020 Series Motor is designed for using on 550 class helicopters running on 6 to 8-cell Li-Po power. This motor represents the most technologically advanced power source ever offered for a 550 class electric helicopter.

Scorpion Competition Series Brushless Motors are built from the best materials available, and are designed to provide both quality and performance at an affordable price. Scorpion starts with high quality aluminum alloy parts that are produced on the latest CNC milling machines. These parts are then gold Electro-Coated to provide a beautiful, long-lasting finish. The stators are made with 0.2mm laminations to give maximum efficiency, and minimum Eddy current losses. The stators are epoxy coated to prevent shorts, and are wound with wire that is rated at 180 degrees C (356 F). The magnets used in Scorpion Motors are custom manufactured to be able to withstand high temperatures, making a motor that is virtually impossible to burn up in normal use.


  • Stator Diameter: 40 mm(1.57 in)
  • Stator Thickness: 20 mm(0.79 in)
  • No. of Stator Arms: 12
  • Magnet Poles: 10
  • Motor Wind: 3T/4T Delta
  • Motor Wire: 24-Strand 0.29mm
  • Motor Kv 1100KV RPM/Volt
  • No-Load Current (IO/10v) 3.15 Amps
  • Motor Resistance (RM) 0.008 Ohms
  • Max Continuous Current 78 Amps
  • Max Continuous Power 1640 Watts
  • Weight 302 Grams (10.65 oz)
  • Outside Diameter 49.98 mm (1.97 in)
  • Shaft Diameter 4.98 mm (0.20 in)
  • Body Length 46.8 mm (1.84 in)
  • Overall Shaft Length 78.7 mm (3.10 in)
  • Max Lipo Cell 6s
  • Peak Current 90 Amps (5 seconds)
  • Peak Continuous Power 1890 Watts (5 seconds)
  • Motor Timing 5deg
  • Drive Frequency 8kHz

Included in the Box

  • 1 x Scorpion HKIII-4020-1100KV Motor
  • 3 x Female Connectors
  • 3 x Heat Shrink
  • 4 x M3 Screws

  • 2.9G Linear Servo

    2.9G Linear Servo

    Specification: Size
    • Category: Specialty
    • Type: Analog
    • Application: Ultra-micro helicopter,
    • cyclic Torque: 11.6 oz (329 g)
    • force Speed: 0.13 sec
    • end-to-end Length: 0.9 in (24mm)
    • Width: 0.7 in (19mm)
    • Height: 0.4 in (9mm)
    • Weight: 0.1 oz (2.9 g)
    • Bushing Or Bearing: Bearing
    • Bearing: Single
    • Motor Type: Brushed Connector
    • Type: JST-SHR 1.0mm
    • Gear Type: Nylon
    • Voltage: 3.2 - 4.2V
    SKU: SPMSH2040L
  • Agile 5.5 Helicopter Kit

    Agile Kit 5.5 (size 550) with main and tail  blades

    Review of the model by Ben Varley (UK)
    The Agile has been designed to offer something different, not just an improvement, but a step ahead of what is commonly done. The Agile was created to adapt to every type of flight: low to high speed, gentle maneuvers, Hard to 3D unimaginable level!
    Intelligent solutions have been used to provide high-end performance with very sensitive controls, giving a feeling of incredible strength while maintaining softness in movement.
    To ensure that nothing is left to chance and bring you the best overall design, hundreds of test flights were carried out by experienced drivers.
    Agile is agility AND quality, you can’t go wrong!
    Required to fly:

    • Main Blades: 550mm [INCLUDED]
    • Tail Blades: 85mm-95mm [INCLUDED]
    • Motor: 1100-1200Kv
    • ESC: 90A-120A / 6s
    • 3x Cyclic servos
    • 1x Rudder servos
    • Flybarless System
    • 1x Lipo 5000 6S 45C
    • Transmitter and receiver


    • Length: 1120mm
    • Height: 350mm
    • Width: 176mm
    • Main Rotor Diameter: 1250mm
    • Main Blade Length: 550mm
    • Tail Rotor Diameter: 260mm
    • Tail Blade Length:92mm
    • Motor Pinion Gear: 21T
    • Motor KV: 1100KV
    • Main Drive Gears:(First Reduction) 21/54 (Second Reduction) 17/56
    • Tail Drive Gears:(Front)58/15 (Tail Shaft)16/16
  • APC Multicopter Prop set 14x7

     APC Prop set 14x7 ( Pusher and Tractor) , especially made for Multi-copter.
    Set including 1 Puller and 1 Pusher Prop, Shaft adapters INCLUDED

    PROPELLER specs.

    •   APC Electric propellers have been designed specifically for electric powered model airplanes.
    •   APC Computer optimized design gives these propellers a thinner profile and more "bite" with less weight compare to standard glow propellers.
    •   Lightweight molded nylon construction reduces rotating mass for less drag and more efficiency.
    SKU: APCMC14x7
  • BavarianDEMON Helicommand RIGID V.2 Stabilization Assistant for Helicopters

    3-axis stabilization system for RC helicopters
    Demonically safe: With "Autopilot" function
    Ideal for beginner


    • Stabilizes all horizontal control movements plus tail
    • RIGID mode for stabilization of flybarless rotor heads
    • Fail-safe function
    • For all types of helicopters
    • Auto-trim function
    • Integrated swashplate mixer
    • PILOT (stabilization) + AUX (tail gyro) channels
    • Linearisation of servo movements
    • Virtual swashplate rotation


    The bavarianDEMON 3X is especially aimed at extreme 3D pilots, but also works X-tremely well for all other flybarless helis. Latest software algorithms, intelligent sensor technology combined with an unprecedented power, all this fitting the entire range of flybarless helicopters, electric, nitro, gaser and turbine powered. Because they are lighter, helicopter models without flybar are much more agile and maneuverable, and are approx. 15% more powerful. In combination with the bavarianDEMON 3X , huge performance is delivered, without the need to adjust the fragile flybar mechanism.


    • Sensor unit including mounting pads
    • Cable loom for receiver connection
    • USB lead for direct connection to PC / Notebook
    SKU: BD8592
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