75th Anniversary of the DC-3 aeroplane aircraft airplane Aviation C-47 AF 42-100591 C-47 Tico Belle clouds Douglas Aircraft Company C-47 Dakota Skytrain fixed wing fixed-wing multi-engine multirole N3239T nose art radial piston engine radial-engine retractable gear Rock Falls Illinois static tail-dragger The Last Time transport twin-engine vertical Whiteside County Airport-Jos H Bittorf Field Sterling/Rockfalls Illinois KSQI