Navy Underwater Demolitions Teams “UDT” Fins – Circa post WWII throughout the 50’s-early 60’s
During the inception of the U.S. Naval underwater warfare units, Strong swimmer, Frogmen, OSS-UDT and finally SEALs teams, the earliest days utilized Churchill style fins but shortly after WWII the Navy began looking for a more military grade “hardier-use” fin to stand up to the rigors of battlefield demands. The UDT fin filled that demand and became a battle tested piece of Mil-Spec Navy issued field gear. By the time the Viet-Nam conflict began in the early 60’s the Navy had adopted variations of the popular black, or military brown Rocket and Jetfin designs, which remain in use today.
