The exterior will be finished in styrene plastic, and the details will be made from brass and styrene. It was very difficult to find the correct measurements for the torpedo, and finding good drawings, was impossible. The only drawings that I could find, was some very ruff intelligence drawings, made from captured Kaitens. I have just finished detailing the conning tower, and ventral hatch. Thank you very much for the links. They are great. I find it interesting that this weapon, was not intended as a pure suicide weapon. The upper hatch was intended as an escape hatch, but there are no record of anyone escaping from a Kaiten. If anyone has any information, photos or anything related to the Kaiten, please feel free to post them in this thread. All the best Snoopy