ORIGINAL: hezik
Thanks for your comments!
The stab area is something one could argue about.
For instance: Sebart's new WindS 2m: 21 dm^2. Larger than my stab. CPLR enlarged the stab on the Osmose Evolution, and the Axiome. Both have a bigger stab than this bird.
See also Chad Northeast's blog:
Secondly, the stab and fin are very large relative to the wing, and also to other F3A models. Christophe said he was not happy with the directional stability in the Osmose, so he made a similar change to the Osmose Evolution and it was improved. So this is a carry over of that, my next question was obviously does that not make it more difficult in the snap, to which he smiled and said there are always compromises Indeed.
However, you are right.. it's a large stab, and a large fin, for that matter. If it turns out to be too large, I will build a smaller one!
The wing is 10% all the way, from root to tip. Since there's a fillet near the fuse, the chord gets very big at the fuse, so it's 9% at the fuse.
So overall, its like this:
fuse: 9% (chord: 57cm)
6cm outward from fuse: 10% (chord: ~45cm)
tip: 10% (chord: 16.5cm)
The root chord at the fuse is 57cm because of the fillet. If one leaves out the fillet, the chord would be 47cm. Since the tip chord is 16.5cm; that means there's a 2.8:1 ratio, which is close to what you mention.
The dihedral on the wing is practically the same as on the Axiome, after CPLR cut it and increased the dihedral. I'm hoping it is correct indeed, but the proof of the pudding is in the eating
