Robert “Bob” Klingman flew his F4U Corsair with Marine Fighter Attack Squadron 312 in support of the Battle of Okinawa near the close of World War II. During operations he flew into Marine Corps history when he used his propellor to chop off the tail of Japanese aircraft. - Robert “Bob” Klingman flew his F4U Corsair with Marine Fighter Attack Squadron 312 in support of the Battle of Okinawa near the close of World War II. During operations he flew into Marine Corps history when he used his propellor to chop off the tail of Japanese aircraft.