Sir Baboon McGoon was one of 13 bombers which was introduced in what year?
Sir Baboon McGoon: Sir Baboon McGoon was an American Boeing B-17 Flying Fortress, a Douglas-Long Beach built B-17F-75-DL, ASN 42-3506, last assigned to the 324th Bombardment Squadron, 91st Bomb Group, 8th Air Force, operating out of RAF Bassingbourn (AAF Station 121), Cambridgeshire, England. Boeing B-17 Flying Fortress: The Boeing B-17 Flying Fortress is a four-engine heavy bomber developed in the 1930s for the United States Army Air Corps (USAAC). Boeing B-17 Flying Fortress:  Although Boeing lost the contract (to the Douglas B-18 Bolo) because the prototype crashed, the air corps ordered 13 more B-17s for further evaluation. Boeing B-17 Flying Fortress:  From its introduction in 1938, the B-17 Flying Fortress evolved through numerous design advances, becoming the third-most produced bomber of all time, behind the B-24 and the multirole Ju 88.
1938