Whirlygig 3" 4S Tricopter

By 1Smug_Bastard on Jun 04, 2019

8  224  3

Remix of the original Whirlygig 2" to reduce flex and improve flight performance. Copter arms are teardrop shaped to allow for better airflow.

Thanks to the removal of the Servo-holder, the entire print is done inverted and thus print supports are no longer needed!
From this point on, a single Nylon M2-screw is used thru the frame to support the Servo via its tab.
(as needed a Zip-Tie can still be used to provide additional support)


  • Weight with battery 117 grams with 4:1 TWR.
  • Emax 1106-4500kv motors are set to a Throttle Multiplier of .52 effectively running at 2340kv.
  • Frame Printed from Nylon / Carbon mix with 0.4 mm print head.
  • 2.5 mm wide zipties used.
  • Microcam / VTX not yet installed. Should manage this by the end of the week if all goes well.
  • For those interested in aquiring the frame, please msg me directly.



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Jodie Froster   13 days ago  

Sick man, profiling the arms like that is right on time!

1Smug_Bastard   12 days ago 

Thus far its much stiffer than the earlier 2” whirlygig and has tons of power. So much so, i have to scale the motor back by half. Yet still the TWR is 4:1 !

Only issue i have this far is that the DYS 4-in-1 F18 ESC is garbage. Dam thing has had issues from the very first moment. Everything from it not keeping Sync with any protocal other than dShot-300 to motors that sputter in flight. Will replace with an Aikon unit tomorrow. Motors ohm out fine so i dont really have any other option but to toss the DYS.

Edit: Powered up the Aikon ESC alone to have it short out instantly! (WTF)

Jodie Froster   9 days ago 


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