I am proud indeed with this finished craft and all the propulsive mechanisms work like a dream . I put 110 percent effort and the results show they are over the top. I wish to show some pics but there are to many one off kind and nobody will copy it yet . It does need buoyance foam being of a shell design with 1100 cubic inches of flotation for a neutral effect . See you soon with some test results ! Thank you God for the help , peace and love for us all Rumdumb