Coast Guard aviators at Naval Air Station Pensacola, Florida celebrate the 100 year anniversary of Elmer Stone checking in for flight school April 1, 1916. Stone is Coast Guard Aviator number 1 and Stone made history as the pilot of the Navy seaplane NC-4 during an attempt by the Navy to complete the first trans-Atlantic flight. U.S. Coast Guard video by PA2 Ryan Tippets.