 On October 5, 1925, he was promoted to the temporary rank of vice admiral as Commander Battleship Divisions, Battle Fleet.The following year, he "fleeted up" to Commander in Chief, Battle Fleet, relieving Admiral Charles F. Hughes on September 4, 1926 and advancing to the temporary rank of full admiral.His tour as Battle Fleet commander was marked by innovations in naval air tactics, including the invention of divebombing, under Jackson's subordinate, Captain Joseph M. Reeves, commanding officer of the aircraft carrier "Langley"; and by Fleet Problem VII, the annual fleet exercise, whose highlight was "Langley"s successful air raid on the Panama Canal.