Hi, i just wanted to share what i do so i could use bracing instead of spars. Since I'm a teen i cant afford to get expensive $10 carbon spars, i use the next best thing, Bamboo skewers, i get these in packs of 150 12" sticks for only A dollar, This would last me 10-15 planes with fuse bracing too. This is what i use on all my scratch built planes.
When i first started scratch building, the extra 300 was my first one, being inexperience and all, i was using blue foam (8.95 for a 8'x2.5' 0.5"thick, enough for 4-5 planes). i built the entire thing out of 4.5mm foam with bamboo spar, when i maiden it the bamboo spar was so weak it folded on me and the tail twisted to much. So after that i decided another plane some where else and chosed a 35" clik, Knowing that bamboo spar wont cut it, i found a simple way that would make it possible, and save a alot of room with 2 seperate wing and fuse, instead of 2 half-fuse with a wing.
What i did was, with the template i seperated the wing from the fuse with a line,half a square/diamond then line again.
When i traced the wing on to the foam i added more more space to the end of the wing where i cut of from the fuse, so it could hold its place on the bottom of the fuse, And make sure you leave the tracing of where you sperated the wing and fuse so you can put it back later. And notice how i removed the curve (caused i hate small tight curves, to hard to cut).
With this you would use bamboo or Cf spar, like all the little f3p planes. Do it like in the picture, and dont forget to add a small peice of bamboo between the 2 ends of the bamboo so the wing wont fold. I used Gorilla glue, but im sure any other glue would work too.
Also if you see that you have tailtwist add some bamboo their too, its make a very big difference. Absolutely strong handles every rolling thing you throw at it, blenders and even ke spins and any other high stress maneuver you throw at it. You should end up with this.
This is a 35" ws & 42"fuse plane. I wouldnt mind going up to a 40" ws either
Edit: Video of the finish support
Hope this help anyone that wants a low budget scratch built plane.
Let me know what you think.
Names Tuan Dinh aka Paintball_kidz
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