On This Day in Aviation History
On This Day in Aviation History: November 13th
1971 – NASA’s Mariner 9 begins to orbit Mars, becoming the first manmade object to successfully orbit another planet. The spacecraft would image 100% of the Martian surface.
1941 – Royal Navy aircraft carrier HMS Ark Royal is torpedoed by German submarine U-81. The ship would sink the following day, but only one crewmember was killed.
1907 – Paul Cornu, a French bicyclemaker, completes history’s first untethered helicopter flight, holding his 24 hp, Antoinette-engined bird at an altitude of about one foot for 20 seconds in Lisieux, France. The design proves to be uncontrollable and impractical, however, and is abandoned shortly thereafter.