Following an unsuccessful raid on targets in England, Marine Luftschiff Zeppelin L 20, running low on fuel, made a forced landing off the coast of Norway near Stavanger in May 1916. Constructed as LZ 59 at Friedrichshafen, and first flown on 21 Dec 1915, L 20 was based at Tønder until 21 Feb 1916 then moved to Seddin until 6 Apr, at which time it was re-deployed to Tønder. During its four months in service, the 35,800m³ L 20 made nineteen flights covering a total of 7,211 km; including six reconnaissance missions and two successful bombing raids over England. The airship crew was rescued by a Norwegian torpedo boat. The 160-meter-long, 23-meter-wide vessel, with a crew of 16, was set ablaze by Norwegian soldiers the day after.