Sagitta 900

[jquinn]

So I had this idea that I wanted to scratch build a sailplane, no kit this time :eek: I narrowed it down to a few planes and ended up ordering the plans for a Sagitta 900, it looked like an achievable plane for my first scratch build. I have built a few planes before and I feel confident in my abilities as far as the build goes. So I got the plans in the mail the other day, two huge sheets, everything looks fine but I noticed that there is no templates for the wing ribs. There is a schematic of ribs one and two for the inboard panel but for the outboard ribs 3-11 there are no templates :confused: Do I just scale down the center panel ribs? Not sure how to proceed.

Thanks in advance!

Jason

[cynjon]

I have a set of tracings of a wing rib set...I can probably scan them and send them via email if you'd like. PM me with your email addy and I'll try to get them scanned tomorrow.

[Bob J]

Since you are scratch-building, why not substitute a better airfoil? The S3014 and the S3021 are both an improvement over the original Eppler 205. There are also some Drela airfoils that should work quite nicely.

[lincoln]

There's a free program called Profili. If I remember correctly, in addition to analysing airfoils, it can plot them. With sheeting thickness put in, etc.

If not, and you can't find something else, I'm sure someone here could make some plots to your specs and send them.

I seem to recall that for nostalgia and some other events you have to keep some semblance of the original airfoil.