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

  • Compass Model 7HV Unpainted Canopy (White)

    This is a Compass Model Unpainted White Canopy, and is intended for use with the Compass Model 7HV helicopter.

    Part Compatibility:

    • Compass 7HV
    SKU: CPS09-7200W
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  • Futaba T10J-R3008SB 2,4 GHz T-FHSS radio

    Fully Equipped 10 - channel handheld transmitter with integrated telemetry function in 2.4GHz FHSS - T  frequency - hopping technology .
    The ideal plant for advanced control of the airplane , helicopter and Multicopter - models , place value on a precise feeling of control .
    The T10J allows with your extremely rich features also demanding applications and leaves nothing in terms program-ability almost nothing to be desired. The ergonomically designed transmitter case with known Futaba build quality feels good in the hand and is characterized by conveniently arranged controls .
    A 128 x 64 pixels large, back-lit LCD display , with large pixels for better legibility in all light conditions .
    The graphically -driven user interface , with the known simple Futaba menu structure makes for easy operation - the menu system can be chosen in 7 languages. The intuitive 3D hot-key allows quick and easy navigation through the menu structure and easy adjustment of all parameters.


    • T- FHSS 2.4GHz technology
    • High interference by rapid frequency hopping modulation (100 times per second . )
    • Future-proof (equivalent already the new EU standard of 2015)
    • Integrated 32- channel telemetry system with high range
    • Telemetry real-time display on a large screen
    • Voice output through optional headphones with 3.5 mm jack
    • Melody and sound output ( either via internal beeper or optional headphones)
    • Vibration Alarm system
    • 65 x 34 mm large, back-lit display (128 x 64 dot)
    • S- BUS technology for full digital integration of S.BUS servos , S.BUS controllers and sensors S.BUS
    • By S.BUS support ideal for helicopter with flybarless systems S.BUS
    • Integrated patch antenna for always optimal antenna radiation
    • Fully equipped 10 - channel transmitter with 19 controls
    • Precision , backlash-free stick with open- stick mechanism
    • The stick units for universal mode (Mode 1 and 2) can be user- Changed .
    • Supplied with heavy NiMH battery for 10 hours of operation , and charger.


    1 transmitter T10J 2.4 GHz T / S-FHSS
    1 receiver R3008SB 2.4GHz FHSS-T
    1 Transmitter battery 2000 mAh 5NiMH
    1 socket charger Tx-Rx 150 mA
    1 Switch harness with charge socket
    1 User Manual

    Other Features:

    1. 10 (8 +2) channels
    2. Switching from T- FHSS (10 channels ) to S- FHSS (8 Kan) - modulation.
    3. T- FHSS Frequency Hopping ® technology with integrated telemetry
    4. A broad channel spread results in high noise immunity and ultra-fast response times for precise , direct control feel .
    5. FEC technique that T- FHSS ® receiver scan the input signal continuously and apply an intelligent error correction method to
    6. 100mW transmit power
    7. No reaction speed loss even with heavily occupied frequency band
    8. Real - time response - real-time control
    9. Excellent range
    10. Ultra-fast , direct, continuous digital modulation for the shortest response times
    11. EasyLink - extremely simple , fast binding process between sender and receiver
    12. Fast and reliable automatic re- binding , even under difficult conditions
    13. Intelligent Servo Timing for uniform servo control and prevention of servo delay differences
    14. Dual Antenna Diversity - extremely fast switching between two receiving antennas for optimal reception signal quality (depending on receiver)
    15. Integrated range check function to check the reach before the start
    SKU: F4109
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    SKU: CS10-0021-b18
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