Northrop A-17


                                   110 Northrop A-17 attack bombers were acquired by the Army Air Coirps in the late 1930s.
                                   They were followed by some 129 A-17As which had a retractable undercarriage (see equally
                                   poor image below).   A number of these dependable aircraft were exported.  All were obsolete
                                   by the time the US entered WW II in 1941, although some A-17As served as trainers.