Disaster
Airships had become an established method of long-distance travel before a horrific accident brought their golden age to an abrupt end.
Their speed had made them an attractive alternative to liners for transatlantic crossings. But on 6 May, 1937, the world's largest airship, the 800ft German LZ129 Hindenburg, crashed to earth in flames in New Jersey after exploding.
The crash, as it neared the end of a 60-hour flight from Germany, killed 36 people. Regular passenger services died with them.