| Occurrence Type: | Accident |
| Helgoland Island air disaster | |
| Date: | 9 September 1913 |
| Type: | Weather |
| Site: | North Sea, off Heligoland |
| Crew: | 20 |
| Fatalities: | 14 |
| Survivors: | 6 |
| Aircraft Type: | Airship |
| Aircraft Name: | LZ14 |
| Operator: | Imperial German Navy |
| Tail Number: | L 1 |
The Helgoland Island air disaster occurred on 9 September 1913 after the airship Zeppelin LZ 14 had been transferred to the Imperial German Navy on 7 October 1912. As the first airship owned by the Navy, it was given the serial number L-1. Ordered to participate in manoeuvers, it departed the mainland in bad weather. With 20 people on board, L-1 flew into a gale, and, while 18 miles from its destination, the cold rain caused its gas to contract, causing it to settle 20miles north of Heligoland into the North Sea, breaking in two. The control car sank, drowning 13 of its occupants. Seven were rescued by motor torpedo boats.[1]