http—cdn.cnn.com-cnnnext-dam-assets-180705094803-pole-to-pole-pan-am-flight-50-boeing-747sp-takeoff Published on May 3, 2019 in 1–3 May 1976Full resolution (900 × 506) ← Previous Next → Pan American World Airways’ Boeing 747SP-21 N533PA. With the “Flight 50” insignia. (CNN.com)