Dear All,

I've been building Phoenix's Giles 202 http://www.rcuniverse.com/magazine/a...article_id=334 but I have a problem with the CG.
It is supposed to be between 95 an 105mm, but my Giles is way WAY tail heavy [:@] (around 3 cm behind 105 mm).

I haven't done anything that would add so much weight to the tail, so this must be a design issue? Any idea how to fix it? Or is it possible that I measured the CG from the wrong staring point?

BTW: I've tried to add 1cm of plywood between the firewall and the engine mount, but the result is almost the same (my manual doesn't say anything about 12cm between the firewall and the prop hub, but I found that info in other posts).

Thx for any help!

J