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

  • Rudder Servo Mount

    Rudder Servo Mount

    SKU: H25023
  • 450DFC CCPM Metal Swashplate/Black

    • Designed specifically for DFC rotorhead system, improving DFC connecting rod's strength and minimizing linkage detachment during extreme flight maneuvers.
    • 6061-T6 Aluminum alloy material and CNC processed.
    • Suitable for 450DFC , Plus


    • CCPM metal swashplate set × 1
    • Linkage ball A(M2x2.5) × 4(D4.75x7.18mm)
    • Long linkage ball(M2x2.5) × 1(D4.75×19.68mm)
    • Linkage ball G(M2x2.5) x 2(D4.75x11.18mm)
    • Long linkage ball A(M2x2.5) x 1(D4.75x23.68mm)
    SKU: H45H007XXT
  • Align RC 55H Engine

    Align RC 55H Engine made in Japan and suitable for superior 55 size helicopter.


    • 40L dual needle carburetor, makes the adjustment much more precisely.
    • Delivers more horsepower for higher rotor speeds.
    • Brand new crankshaft design. Increase the efficiency of intake/exhaust and makes the power stronger.
    • Besides good looks and excellent cooling, this engine is machined blue alumite heat sink head also boosts combustion efficiency for more power stability.
    • Same size connector to the mount and the muffler as what Align 50 Hyper engine has,Maximize the efficiency when operating with ALIGN 50 High Performance Muffler.


    • Displacement:8.93cc (0.55
    • Bore:23mm (0.91 in.)
    • Stroke:21.5mm (0.85 in.)
    • Practical rpm range:2000-20000 rpm
    • Output:2.1hp/17000rpm
    • Weight:408g (14.40 oz.)


    • OS#8 glow plug x1
    • 40L carburetor x1
    SKU: HE55H02T
  • Jeti OPTIC 8

    Jeti OPTIC 8 provides absolute isolation of the RC receiver from other electrical equipment in the model. The OPTIC 8 prevents unwanted signals moving along conductors from servos, speed controllers, and other devices connected to the on–board electrical system.

    Using the OPTIC 8 allows greater flexibility over receiver placement in the model. The quality of incoming signals is mainly influenced by the direct contact of the receiver with cables and other electrical equipment – which is completely electrically isolated when using the OPTIC 8.

    OPTO isolation of the receiver (using the OPTIC 8) is recommended when using five and more servos; for ELECTRIC drive, more then 50A and greater than 10s NiXX or 4S LiXX cells using Switch Mode (Switching) BEC circuits.


    • 8 times the safe separation of the RC components
    • suitable for receivers with low signal voltage level
    • Raising the signal level
    • Doubled battery feed possible (2 separate battery circuits)
    • Recommended input and output voltage: 3.3 to 8.4 V
    • Maximum input voltage: 8.4 V
    • Maximum allowed temperature: 85 ° C
    • maximum servo Typical current: 10.0 A (see table)
    • Quiescent current: 2mA
    • Dimensions: 41 x 30 x 13 mm
    • Weight: 10g
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