FW190-A8 1/10th

[Zolko]

I've started to model a Focke-Wulf 190-A8 at 1/10th scale, to make an RC plane with it. The fuselage is supposed to be 3D-printed, while the wings should be made with classic wood structure, laser-cut if possible.

First, I imported into Inkscape various drawings of scale models, scaled them to the correct size, and superimposed them in layers. This is not as trivial as it sounds because the drawings, supposedly of scale RC models, differ quite some. I then drew the outlines of the side-view, cockpit cut-out, fuselage frames ...

Figure_Inkscape.png (289.63 KiB) Viewed 1970 times

... exported these as SVG file, and imported it, as-is, into FreeCAD:

Figure_SVG.png (53.07 KiB) Viewed 1970 times

I then created different Part containers in a new document, and copied the imported paths into them. Then, I moved the Parts containing the imported paths to their correct location:

Figure_Wires.png (34.62 KiB) Viewed 1970 times

Now, I more-or-less have a wire-frame of the FW190 fuselage. So ... what's next ?

[thschrader]

...
Now, I more-or-less have a wire-frame of the FW190 fuselage. So ... what's next ?

See here:
https://forum.freecadweb.org/viewtopic.php?p=218623

It’s a Long Way to Tipperary.

[HardRock]

Good beginning, next you need to make shell

First of all I strongly suggest to choose an airfoil for wing and airfoil geometry (twist).
Just redraw from original drawing is not a good idea becuase this balsa model look like was much bigger and your model will fly worse than original.
If you are not familar enough with aerodynamics or just dont want to make a mind for this, I suggest to rotate wing tip profile 2-3 degrees nose-down if wing has no twisted already.

Interesting project, stay in touch

[Zolko]

Taking shape: I use Part_Loft between fuselage sections, that are adjusted for smooth flow.

screenshot.png (83.45 KiB) Viewed 1622 times

[thschrader]

I was there...
https://www.luftfahrtmuseum-hannover.de ... ulf-fw-190

fw190pic.JPG (25.18 KiB) Viewed 1584 times

[Zolko]

Progressing slowly, but the loft produces some wrinkles that I fail to get rid of. I also tried Curves and CurvedShapes WB, but not much luck so far.

FW190_wrinkles.png (119.54 KiB) Viewed 1188 times

[Zolko]

I somehow fail to make progress, so I've uploaded the fuselage file into my Examples repository, so if someone wants to give a try to do better would be very helpful. There is no license, it's public domain. I'd be especially happy to see improvements and techniques from masters of the Curves and CurvedShapes workbenches.

https://github.com/Zolko-123/FreeCAD_Ex ... ster/FW190

[-alex-]

, so if someone wants to give a try to do better would be very helpful.

I can't access FC those days, furthermore I'm not a master of Curves WB, but just my 2 cts, you could maybe use Curves_GordonSurface.
See https://forum.freecadweb.org/viewtopic.php?f=8&t=29632

[GlouGlou]

You can discretize the joincurve. Sometimes that's give a better result. But several tries must be do.

[Zolko]

thanx for the suggestions, I'll try them