Engineering:Zeppelin LZ 55

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LZ 55
Zeppelin brought down on the marches near mouth of the Varder River during the Salonika Campaign.jpg
Wreckage of LZ 55 on the marshes near mouth of the Varder River during the Salonika Campaign


Zeppelin LZ 55 (Army tactical number LZ 85) was a P-class Zeppelin of the Imperial German Army in World War I. It was shot down by the old British pre-dreadnough battleship HMS Agamemnon in 1916 during Salonika campaign

B&W photo of wreckage next to w round castle
Reconstructed wreckage of LZ 55, next to the White Tower

History

Searchlight crew on HMS Agamemnonre-enacting spotting the Zeppelin[1]

On 5 May 1916 LZ55 made another attack on Thessaloniki (Salonika) harbour. Part way through the attack it was caught in spotlights.[2] and all the ships in the area opened fire with their anti-aircraft guns.[3] LZ55 continued its attack but HMS Agamemnon 12-pounder anti-aircraft gun hit LZ 55; breaking it in half according to one of the crew. The airship crashed in the swamps at the mouth of the Vardar River west of Thessaloniki and its crew were captured.[4] [5] The crash site soon became a tourist attraction, with a report that "a dozen Canadian nurses. They had come up ... and waded through to it. What a sight they did look, skirts up round their waists wading through mud and slime up to their knees."[2]

The metal structure of the Zeppelin was dragged by Allied soldiers from the swamps to the White Tower of Thessaloniki.[2] There it was reconstructed so that Allied engineers could study how the Germans built airships.[citation needed]

Specifications (LZ55 / P-class zeppelin)

Data from Zeppelin : rigid airships, 1893-1940[6]

General characteristics

  • Crew: 18
  • Capacity: 16,200 kg (35,715 lb) typical disposable load
  • Length: 163.5 m (536 ft 5 in)
  • Diameter: 18.7 m (61 ft 4 in) maximum
  • Fineness ratio: 8.68
  • Volume: 31,900 m3 (1,130,000 cu ft) in 15 gas cells
  • Empty weight: 20,800 kg (45,856 lb)
  • Fuel capacity: 4,800 kg (10,582 lb) maximum
  • Useful lift: 37,000 kg (82,000 lb) typically
  • Gas loading: 1.16 kg/m3 (0.072 lb/cu ft)
  • Powerplant: 4 × Maybach HS Lu 6-cylinder water-cooled in-line piston engines, 180 kW (240 hp) each
(initially with 4x 157 kW (210 hp) Maybach C-X engines)
  • Propellers: 2-bladed fixed-pitch propellers

Performance

  • Maximum speed: 96 km/h (60 mph, 52 kn)
  • Cruise speed: 90 km/h (56 mph, 49 kn)
  • Range: 4,300 km (2,700 mi, 2,300 nmi) at 90 km/h (56 mph; 49 kn)
  • Service ceiling: 2,800 m (9,200 ft) static

Armament
machine guns in hull-top positions and gondolas with provision for bombs

See also

  • List of Zeppelins

References

  1. "Q 31980". Imperial War Museum. 1916. https://www.iwm.org.uk/collections/item/object/205297559. 
  2. 2.0 2.1 2.2 Moody & Wakefield 2011.
  3. Buxton 2008.
  4. Burt 1988, p. 298.
  5. Tennyson 2013, p. 478.
  6. Brooks, Peter W. (1992). Zeppelin : rigid airships, 1893-1940. Washington, D.C.: Smithsonian Institution Press. pp. 91–95. ISBN 1560982284. 

Bibliography