The A-1 Skyraider, from WWII relic to Vietnam hero, proved its worth with robust design and versatile combat roles.

Powered by a Wright R-3350 Duplex-Cyclone radial engine, the A-1 could stay over the battlefield for hours, loitering far longer than most jets of its time. This made it ideal for close air support ...

The U.S. military has long relied upon jet engines for its fighter and attack aircraft. As early as the 1940s, U.S. aircraft were experimenting with jet engines, threatening to make the ...