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RV4 Whirligig

tlump51

Member
I thought you guys might get a kick out of this project. This is a wind-driven whirligig of two RV4s in formation. It is made mostly of wood with some help from my trusty 3D printer.

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Fuselage carved from wood with 3D printed gear leg fairings.

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Completed model of "lead" plane with paint scheme from my full size RV4.

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"Wingman" with alternate paint scheme I considered.

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Looking up from my patio on a cloudy day. RV overflight!

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Poor quality video of the contraption in action.

https://lh3.googleusercontent.com/p6qEJp58cI2APv6Qk7rHHZWIELZYFZyjwL359Soya07EZFzLh237gb8wh5U9Cwy7NyPylMd3Df5BAA9eTYubT4_sph6bEKZfybcKdZcA7l0Qz1KD7oBWQl8SAOurY0MQu5fZCotwoZgU63Ku6kuqjJsK06x8QYjXiW5UsRpLc1agXevyusfuj5NQt31PHRO0T3aXsU8KT8qqSHQfMAvs1KMqCrSDOI7hpCGQg_vS5szgYkb9ozNRlWIdg_rDC7LoTgmPw7aCdR74bvOw18gDQLkqHokd2NDe32_oAsgIZBrGD3w76OPXkICZKFx4PWQjwTUOcOQGuEWQKvkr6CYvWjgfugmQ-GnpFg3FF7MZxavhQEmkMSw8m7FKqwVL0-wgaBOiEtP4xeLAJgzozWqc9ei73ItwHskTg8XF05zRLmCtEw8_o0zs6xc1jeYZveR2d-9xYK3uCwljfM7kjOf6IxlZZ4Bb5dy2_ryuv0edvZ1Q1XAlzKKlBh02xd2cldkbVlyU3s56k_VLjwXnwP5OnC4neYSOZC79Fn_Q2DR9G8YYtTEJ-25AKSdFKbSuHeEniqYnu5Jtr9shh_XMo1PlLBNfhtlFNsbj82FoS0vUlWEfx8eBs9j3P7PeYqfX0FUg3z_uWQ29AcU7_J6R063TsAX64Q=w1280-h720-k-no
 
No video

It looks like a cool addition to the sky. When I tried the video, it was just a pic. Looks good though 👍
 
Yep, nicely done! The "finished pic of lead", with dowel attached to tail, looks like they'd be perfect "fighter sticks" for ACM/BFM mission briefings in the ready room:cool:

With the video INOP, trying to visualize what kind of motion the fan blades provide. Do they execute a lead change, a crossunder, or...??..?


Doug
Seattle area
 
Yep, nicely done! The "finished pic of lead", with dowel attached to tail, looks like they'd be perfect "fighter sticks" for ACM/BFM mission briefings in the ready room:cool:

With the video INOP, trying to visualize what kind of motion the fan blades provide. Do they execute a lead change, a crossunder, or...??..?


Hmmm. I thought I had video posting figured out. I'll re-read the instructions and try again.

Basically, the planes bank back and forth in formation. Like they're doing a quick reversal from left to right and vice versa.
 
Ahhhh????..now we see.

Very cool indeed!

Now you WILL be getting some custom build requests.

Boys and their toys...??.:D


Doug
Seattle area
 
Ahhhh????..now we see.


Now you WILL be getting some custom build requests.

Which parts are printed? That looks like a fun "rainy weekend" project. You could probably sell a few kits of the printed parts!

Could you post a couple of pics of the business end (the gear drive end)?
 
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