It sure lookes like a CraftAir tail. Note the stab pivots on the front stab wire.

Definitely not an 'Aquila' (I have scratch built many).

If that flat bottom does not handle the wind in your area you could try a mod that was made on the Aquila called the 'Miller Mod'. It can be found on the internet using that word group. It required placing a strip of balsa under the main wing spar to attempt to make a diamond shape on the bottom of the wing. However it may pay to actually cut foil shaped rib sections that could be retrofitted on the bottom to make a nice semi-symetrical shape. It allowed the Aquila to penetrate when the breeze picked up which was quite helpful in northern Ohio.