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LEGO models my own creation MOCpages toys shop 8051 HelicopterTechnic
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8051 Helicopter
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Helicopter with coaxial rotors (stacked pair of counterrotating rotors), Alternate from parts of 8051 Motorbike
About this creation


Pulling a crank on the side the two rotors will rotate in different directions. Such a design on a helicopter makes a heck rotor redundant.


To achieve counter rotating rotors you need to pass two different rotations around one axle. You could do this with a turntable, but there comes none with this set. Instead I used two "Technic Gear 16 Tooth with Clutch" and interlocked their teeth:


I made photographic building instructions for this model. You can see them in my Brickshelf folder.

Or you can download them as PDF in two different layouts: for print (7,62 MB) or for screen (7,85 MB).

They look like this:




Comments

 I like it 
  September 13, 2013
Fantastic alt model!
 I made it 
  September 11, 2013
Quoting Halhi 141 Saw this on brickshelf a while back, I was wondering when/if you'd post it here. Fantastic functions, the clutch gear technique is brilliant. Too bad it isn't possible with the new mold of the piece...
Thanks for all your comments! That's true, I uploaded this one on brickshelf 3 years ago. I think I tried uploading here earlier one time but lost connection during the process and didn't had the motivation to start all over.
 I like it 
  September 11, 2013
Saw this on brickshelf a while back, I was wondering when/if you'd post it here. Fantastic functions, the clutch gear technique is brilliant. Too bad it isn't possible with the new mold of the piece...
 
By Nequm Odiva
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LEGO models my own creation MOCpages toys shop 8051 HelicopterTechnic


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