When Samaritan’s Purse retired its McDonnell Douglas DC-8 freighter N782SP after a final humanitarian mission to Jamaica in late 2025, aviation lost more than just another aging cargo aircraft. The retirement marked the near-complete end of the first-generation jetliner era, a period when four-engine aircraft symbolized the future of global aviation. Built on December 24, 1968, the aircraft accumulated nearly 99,000 flight hours across a 57-year lifespan. So in this video, we take a look at why the Douglas DC-8 outlasted the Boeing 707 by decades, how smart engineering decisions helped keep it flying long after its competitors disappeared, and why one of aviation’s oldest jetliners became an unlikely symbol of endurance.