I have both the F20 and the FA 18 from Juno, though I havent built either, the kits are a very good quality, I have read the manuals and studied the plans ..they both appear to be a straight forward build.. the wood quality is good but you wont find hardware such as hinges , push rods, engine mounts etc.. this is left up to the individual's preference to use their own selection.though some recommendations are made...both come with fixed gear but both plans and instructions cater for retract installation..
which ever you choose I dont think you'd be dissapointed
