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  • All new FAI F3A competition-level contra rotating system.
  • The thrust is about 20% higher than the uniaxial systems (compared with DA4), with lower power consumption.
  • CNC made pulley and inclined gears, quiet operation.
  • The main shaft and the motor shaft adopt hollow shaft design.
  • Maintenance-free design without adding lubricating oil.
  • Nearly zero propeller reverse torque makes the straightness of the model plane better.
  • The incredible uniform speed effect can be achieved in the descent/dive route.
  • CNC made lightweight gearbox bracket.
  • Carefully deployed gear / belt ratio eliminates the belt tight wheel mechanism.
  • Belt replacement cycle is 4,000 minutes (about 500 flights).
  • Supports the common after-firewall installation of F3A, with optional Mount Kit. Also supports the before-firewall installation for stunt model aircrafts.

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    Copyright Text - 2025 Modelflight

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    Dualsky CRS3500.11 MkIII AE Contra Rotating 10S Brushless Motor for FAI F3A

    SKU: DSB52314
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    The new generation CRS MKIII system, in addition to the obvious color changes, has almost all the components redesigned: new main shafts, new gear & pulley, new motors, even the screws & support rods are new.

    $1,499.99
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    Dualsky CRS3500.11 MkIII AE Contra Rotating 10S Brushless Motor for FAI F3A

    SKU: DSB52314
    $1,499.99
    Loading...
    Loading...

    The new generation CRS MKIII system, in addition to the obvious color changes, has almost all the components redesigned: new main shafts, new gear & pulley, new motors, even the screws & support rods are new.

    In stock

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