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Records concerning the history of French airships in US Navy service are fragmentary. A number of
airship An airship, dirigible balloon or dirigible is a type of aerostat (lighter-than-air) aircraft that can navigate through the air flying powered aircraft, under its own power. Aerostats use buoyancy from a lifting gas that is less dense than the ...
s of various classes were operated by the
US Navy The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...
(USN) during
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
from the French Naval Base at
Paimbœuf Paimbœuf (; ) is a commune in the Loire-Atlantique department in western France, lying on the south bank of the river Loire upriver from Saint-Nazaire but considerably downriver from Nantes. In the Napoleonic era it was the site of considerab ...
, which was designated a US Navy Air Station from 1 March 1918 onward. It appears that at least 13 French manufactured airships were operated by the USN from Paimbœuf; six were eventually shipped to the United States and one was returned to France before the armistice. The Navy operated or ordered four Astra-Torres type airships, one T-2—the ''Captain Caussin'', two CM types, and three or four VZ types.


Astra-Torres airships

The
Astra-Torres airship The Astra-Torres airships were non-rigid airships built by Société Astra in France between about 1908 and 1922 to a design by the Spaniard Leonardo Torres Quevedo.Francisco A. González Redond''Leonardo Torres Quevedo, 1902-1908. The Foundatio ...
was in length with a diameter of , and was powered by two engines. The USN operated AT-1, AT-13 and AT-17. AT-18 was ordered but cancelled. Missions were flown by the first two airships during the war and included training, convoy patrol, mine spotting, and anti-submarine operations. There is no record of flights in the United States by the three AT airships which were shipped there after the
armistice An armistice is a formal agreement of warring parties to stop fighting. It is not necessarily the end of a war, as it may constitute only a cessation of hostilities while an attempt is made to negotiate a lasting peace. It is derived from t ...
. AT-1 was stricken from Naval records in July 1920 at the Naval Aircraft Factory; AT-13 was stricken in October 1920 at Hampton Roads, and AT-17 was transferred to the US Army at Langley Field in October 1919. Entrance of Chalais - Meudon France 1918 Balloon Field. Chalais - Meudon France 1918 A Camp View with Balloon factories in the background


Chalais-Meudon Chalais-Meudon is an aeronautical research and development centre in Meudon, to the south-west of Paris. It was originally founded in 1793 in the nearby Château de Meudon and has played an important role in the development of French aviation. ...
(French State Airship Factory)

The US Navy purchased the CM-5, which was completed after the armistice. The CM airships were long, in diameter and were powered by two 230 hp Salmson engines. The CM-5 was shipped to Akron, where it was offered for sale. There is no record of the USN operating the CM-5. One engine car from the CM-5 is in the
New England Air Museum The New England Air Museum (NEAM) is an American aerospace museum located adjacent to Bradley International Airport in Windsor Locks, Connecticut. The museum consists of three display hangars with additional storage and restoration hangars. Its ...
at Windsor Locks, Connecticut. The US Navy also operated a T-2 type Chalais-Meudon airship ''Capitaine Caussin''. The ''Capitaine Caussin'' was operated for training at Paimbœuf and Guipavas. It was shipped to Hampton Roads, but was not erected or flown after arriving there.


Vedette Zodiac

The
Zodiac Group Zodiac Aerospace was a French aerospace group, active from 1896 to 2018, that supplied systems and equipment for aircraft. In October 2018, it was acquired by French aerospace and defense company Safran. History Aeronautic foundations (1896� ...
built the VZ-7 and VZ-13. Both were operated at NAS Paimboeuf before the armistice and flew combat missions. They were shipped first to Norfolk, and then Coco Solo, where they were scrapped in October 1919. Zodiac VZ-3 was operated by the USN at Paimbœuf during 1918, but was returned to the French in September of that year. The Zodiac ZDUS-1 and ZDUS-2 were ordered by the Navy and shipped to the US. Never operated by the Navy they were both apparently transferred to the Army, and one, the ZDUS-1, was operated by the Army at Langley Field, where the name was changed to ZD-1 and then to RN-1. The RN-1 was rebuilt with a significantly modified and lightened control car and two
Liberty engine The Liberty L-12 is an American water-cooled 45° V-12 engine, displacing and making , designed for a high power-to-weight ratio and ease of mass production. It was designed principally as an aircraft engine and saw wide use in aero applicat ...
s replacing the Renaults. In 1923 the RN-1 was rebuilt at Scott Field (Oklahoma). A new envelope was provided, the control car was further modified and the two
Liberty engine The Liberty L-12 is an American water-cooled 45° V-12 engine, displacing and making , designed for a high power-to-weight ratio and ease of mass production. It was designed principally as an aircraft engine and saw wide use in aero applicat ...
s were replaced by Packards. After four years in service, the RN-1 was placed in storage at Scott Field during 1924 and was eventually scrapped.Shock, James R., U.S. Army Airships, 2002, Atlantis Productions, Edgewater Florida, , pages 51-53


References

* http://www.blimp-n2a.com/zodiac.htm ;Bibliography * *


External links

* - silent footage including the ZDUS-1, specifications shown at 20:00 {{USN non-rigid airship classes Airships of the United States Navy