The AV-8B Harrier, known informally as the Harrier jump jet, is the latest iteration in a series of VSTOL aircraft that was ...

Comparisons between now and the 1930s are rife these days. There’s economic anxiety and global instability. There’s a threat of war. There’s hesitant rearmament here in Britain.

An F-35B fighter jet uses a runway sloped like a ski jump to take off quickly. On runways that are too short, these ski jumps help the plane get off the ground — or aircraft carrier. More from ...