In order to avoid creeping errors I first make a rib pattern in aluminum sheet. You can pick up small cut off scraps from any aircraft repair shop. The aluminum is easy enough to cut with a scroll saw and then smooth with a file or sandpaper. Trace it onto the balsa with a soft led pencil, cut them out a bit oversize, stack them and sand them all to the same shape at the same time. I drill two 1/8 holes in the ribs to keep them together as you sand. The 1/8" dowel will also hold them in place when you glue them to the spars. A bonus suggestion: keep your file wet with WD-40 and it will never plug up with aluminum filings. Good luck!
Part of the problem was how delicate balsa is, so I made the airfoil thicker to accommodate two 1/8 inch diameter spars. Two balsa pieces broke anyway during construction, but I reglued them around the spars, and that seemed to work.
Really nice cleaning…keep it up bro💪🏻
Thank you for this! I’m working on a Discus Launched Glider right now and this was exactly what I was hoping for!
Glad it helped you!
In order to avoid creeping errors I first make a rib pattern in aluminum sheet. You can pick up small cut off scraps from any aircraft repair shop. The aluminum is easy enough to cut with a scroll saw and then smooth with a file or sandpaper. Trace it onto the balsa with a soft led pencil, cut them out a bit oversize, stack them and sand them all to the same shape at the same time. I drill two 1/8 holes in the ribs to keep them together as you sand. The 1/8" dowel will also hold them in place when you glue them to the spars. A bonus suggestion: keep your file wet with WD-40 and it will never plug up with aluminum filings. Good luck!
yep, Aluminum or hardwood would be my choice as well.
indeed a creepy mug
Good job
This was the most illustrative video I have ever watched. (sorry my english is not good)
I am glad you enjoyed it. I am making a set of videos on the entire construction process.
Hhhhhhh this is what I need, thank you
How do you decide these numbers, currently going insane trying to decide a wing cross section 😭
how did you finalise the airfoils for your glider
Part of the problem was how delicate balsa is, so I made the airfoil thicker to accommodate two 1/8 inch diameter spars. Two balsa pieces broke anyway during construction, but I reglued them around the spars, and that seemed to work.
what are these digits ?
I have another video on the NACA 4 digit airfoil that explains them in detail.