 In the 1940s, the Fairchild Aircraft factory at Hagerstown produced PT-19 trainers and C-82 Packet transport aircraft for the war.After World War II, Fairchild would go on to produce C-119 and C-123 military transports and license-produce Fokker F27 airliners at Hagerstown.From 1973 to 1984, final assembly and checkout of the A-10 Thunderbolt II was performed at Hagerstown.