Hi Caio:

Thank you for your interest in my Tipo. As Doxilia (David) pointed out this is not a speeder even though I have plenty of power. If I would put a 120AX I would have serious concerns about the prop tip hitting the ground under certain circumstances. Now having said that I have to agree with you regarding the plan enlargement. When enlarging plans it does not necessarily mean increasing wood thickness and airfoil proportionally. In my humble opinion If I would build the same kit again, I would consider reducing the airfoil thickness and the thickness of the wood in certain areas. I don't believe putting lightening holes would compromise the strength of the fuse however I would rather work on the top of the fuse and hollowing the wood to be used or maybe just make a foam top to save some weight. Reducing the thickness of the fuse sides would also help. Rossi is a great engine but you might be a bit on the down side I believe. Although fixed gear is the easy way I like to complicate myself with retracts. Besides it would give the clean line of the Tipo that so many people like. Hope this helps. If you have any other questions I will be happy to help you out.

Christian