How did the Navy “Leap Frogs” parachute demonstration team come to be? In 1956, a frogman from Underwater Demolition Team (UDT) 21 — one of the predecessor teams of the Navy SEALs — acquired a main and reserve parachute after answering an advertisement from Mechanics Illustrated. This frogman, named Jim McGee, and Lt. j.g. Bruce Welch, … Continued