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Full Scratch Bush Aircraft

4 replies
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  • Member since
    February 2020
  • From: Normandy, France
Posted by Optilium on Thursday, May 21, 2020 3:00 PM

The aircraft I'm making is by default not completely covered. I wanted to build the backcountry supercub, howewer due to the lack of internal references, I used the Zlin Bobber Savage. So except for the wings, which gonna be fully covered, the airframe will be visible. 

I used quite a lot of ref for the engine to make each connection. The fuel line which connect the tanks located in te wings and the carburetor has been made as well with electrical wire (the white one). Mixture, carburetor heat, magneto, electrical system, Oil tank,...everything is (I think...) represented. 



Tail wheel: 

I finally tried a second time silk paper for the covering. White glue -> silk paper -> water to extend paper. 


Next Soon ! 

Check my gallerie for more: HERE

  • Member since
    October 2019
  • From: New Braunfels, Texas
Posted by Tanker-Builder on Tuesday, May 19, 2020 10:15 AM


 I do have to agree with you. That fantastic work should NOT be completely hidden.

  • Member since
    August 2014
  • From: Willamette Valley, Oregon
Posted by goldhammer on Sunday, May 17, 2020 11:00 AM

Stunning job.

For covering I'd think the old stick and tissue, and just over 1/2 of the fuselage and one wing.....Dont cover all of that fantastic work.

  • Member since
    October 2019
  • From: New Braunfels, Texas
Posted by Tanker-Builder on Sunday, May 17, 2020 10:28 AM

Oh My !

 And I thpought I was a punishment Glutten. I did a real one and you're doing this in Miniature? Gotta say, Nice job so far!

  • Member since
    February 2020
  • From: Normandy, France
Full Scratch Bush Aircraft
Posted by Optilium on Sunday, May 17, 2020 5:41 AM

[ I posted this topic on the aircraft forum. Just moving it at the right place (Thanks Don Stauffer, I haven't seen the civil aircraft forum...Stick out tongue)  ]


Hi ! 

I decided to start a new project at the beginning of the covid crisis: making a full scratch aircraft. I choose the bush aircraft Backcountry Supercub for its shapes

The beginning was quite tricky. I wanted to weld the frame, but Laiton and tin aren't really compatible, the global frame was really fragile, and some difficulty to get a symetric frame. 

I wanted to get a model as realistic as possible. With real tires, functionnal flight control and actuators, and respect the structure of the real frame. 

Actuator are made with spring. The main problem was the material resistance compared to the spring resistance. Here is the final result:


Flight controls were quite tricky as well. The main problem I had, was to find the neutral position and the yarn tension. At the end, the pitch and yaw controls are reversible, so i can by moving the stick make the rudder and horizontal plane move, but that's not the case for the ailerons due to high friction and the lenght of the wire


Flaps are controlled by a controller.


Finally, the enfine, full scratch as well, and made only with styrene sheet and tubes. I choose the continental O-200. References were really easy to find on the internet


Next step, I have to add all the link between the engine and the controls, as well as every electrical wires. I also have to find a way to cover the wing...




Check my gallerie for more: HERE


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