Avro Vulcan

The Avro Vulcan was a jet-powered delta wing bomber first flown in 1956 and was designed to carry nuclear weapons. One hundred thirty six were built but none were used offensively until the Falkland Island war against Argentina in 1982, in what were the longest bombing missions is history. They were retired in 1984. 
One was restored and remains in flying condition for display in air shows. See The Dukes previous post.