Keywords: F7F with torpedo NAN7-47.jpg A U S Navy Grumman F7F-3N Tigercat in flight carrying a Mark 13 torpedo that incorporates box fins on the tail Made of plywood they stabilized the torpedo when it hit the water and broke away when the torpedo entered the water The nose of the torpedo normally featured a plywood casing as well U S Navy Naval Aviation News July 1947 http //www history navy mil/nan/backissues/1940s/1947/Jul47 pdf; also U S National Museum of Naval Aviation photo 1996 488 002 011 http //collections naval aviation museum/emuwebdoncoms/pages/common/imagedisplay php irn 15157 reftable ecatalogue refirn 11608 1947 USN PD-USGov-Military-Navy Grumman F7F Tigercat Mark 13 torpedo |