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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 aircraft.

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Dualsky CRS3500.13 MkII Contra Rotating 12S Brushless Motor for FAI F3A

SKU: DSB52315
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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.

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$1,499.99
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Dualsky CRS3500.13 MkII Contra Rotating 12S Brushless Motor for FAI F3A

SKU: DSB52315
$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.

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