Aquila was an Italian aircraft carrier converted from the transatlantic passenger liner SS Roma. During World War II, Work on Aquila began in late 1941 at the Ansaldo shipyard in Genoa and continued for the next two years. With the signing of the Italian armistice on 8 September 1943, however, all work was halted and the vessel remained unfinished. She was captured by the National Republican Navy of the Italian Social Republic and the German occupation forces in 1943, but in 1945 she was partially sunk by a commando attack of Mariassalto, an Italian royalist assault unit of the Co-Belligerent Navy of the Kingdom of Italy, made up by members of the former Decima Flottiglia MAS. Aquila was eventually refloated and scrapped in 1952.
A submarine aircraft carrier is a submarine equipped with aircraft for observation or attack missions. These submarines saw their most extensive use during World War II, although their operational significance remained rather small. The most famous of them were the Japanese I-400-class submarines and the French submarine Surcouf, although small numbers of similar craft were built for other nations' navies as well.
Ōyodo (大淀) was a light cruiser built for the Imperial Japanese Navy (IJN) during World War II, and was the only ship of her class completed before the end of the war. Designed to command submarine operations, she was obsolete upon completion in 1943. The ship was used as a transport and to escort the navy's capital ships for the rest of the year. Ōyodo was lightly damaged by American aircraft in early January 1944 during one transport mission and returned home several months later to begin conversion to serve as the flagship of the Combined Fleet.
Seydlitz was a heavy cruiser of Nazi Germany's Kriegsmarine, fourth in the Admiral Hipper class, but was never completed. The ship was laid down in December 1936 and launched in January 1939, but the outbreak of World War II slowed her construction and fitting-out work was finally stopped in the summer of 1940 when she was approximately 95 percent complete. The unfinished ship remained pier-side in the shipyard until March 1942, when the Kriegsmarine decided to pursue aircraft carriers over surface combatants. Seydlitz was among the vessels chosen for conversion into auxiliary aircraft carriers.
Béarn was an aircraft carrier converted from an incomplete Normandie-class battleship for the Marine nationale during the 1920s. Entering service in 1928, the navy intended to use her to develop tactics and techniques for carrier aviation. The only aircraft carrier France produced until after World War II, the ship played a minor role in early stages of the war, training in home waters and conducting pilot training.
Algérie was the last treaty cruiser constructed for the French Navy. Designed and built in response to the Italian's Zara class of 8-inch gun cruisers, she was a totally new design and not based on the previous ships. The armoured caisson system used in Foch and Dupleix was abandoned in favour of a full armoured belt enclosing both the magazines and machinery spaces. She abandoned the unit propulsion system used previously and grouped her boilers forward leading to the reduction to a single funnel. She was one of the first vessels to utilize super heating boilers. Welding was used primarily in place of the normal rivetting in previous vessels. She maintained the same main armament but her secondary guns were increased to 100 mm guns. She served in the Mediterranean Sea after entering service then searched for German surface raiders at the beginning of the war. She was at Toulon, France, at the time of the Armistice and remained there until scuttled in November 1942.
The Bretagne-class battleships were the first "super-dreadnoughts" built for the French Navy during the First World War. The class comprised three vessels: Bretagne, the lead ship, Provence, and Lorraine. They were an improvement of the previous Courbet class, and mounted ten 340 mm (13.4 in) guns instead of twelve 305 mm (12 in) guns as on the Courbets. A fourth was ordered by the Greek Navy, though work was suspended due to the outbreak of the war. The three completed ships were named after French provinces.
The Joffre class consisted of a pair of aircraft carriers ordered by the Marine Nationale prior to World War II. The Navy had commissioned an experimental carrier in 1927, but it was slow and obsolete by the mid-1930s. Support for naval aviation in the navy was weak during this time as it had lost control of its aircraft, its training and their development to the new Air Ministry when it formed in 1928 and did not regain full control until 1936. Traditionalists among the naval leadership had begun a battleship building program in the early 1930s to counter German ships that were suitable for commerce raiding and carriers were deemed useful to hunt them down, especially once the Germans began building a carrier of their own in 1936.
The Gourdou-Leseurre GL-812 HY was a 3-seat reconnaissance floatplane, built by Gourdou-Leseurre.
The Loire 130 was a French flying boat that saw service during World War II. It was designed and built by Loire Aviation of St Nazaire.
The Gourdou-Leseurre GL-832 HY was a 1930s French light shipboard reconnaissance floatplane designed and built by Gourdou-Leseurre for the French Navy.
HMS Vindex was a Royal Navy seaplane carrier during the First World War, converted from the fast passenger ship SS Viking. The ship spent the bulk of her career operating the North Sea, where she twice unsuccessfully attacked the German Zeppelin base at Tondern and conducted anti-Zeppelin patrols. One of her Bristol Scout aircraft made the first take-off from an aircraft carrier in late 1915. Another made the first interception of an airship by a carrier-based aircraft on 2 August 1916, when it unsuccessfully attacked the Zeppelin LZ 53. Vindex was transferred to the Mediterranean in 1918 and was sold back to her original owners in 1920. She was requisitioned again in 1939 and served through the Second World War as a troopship under a different name. After the end of the war, the ship was returned to her owners and was sold for scrapping in 1954.
The Gourdou-Leseurre GL.30 was a racing aircraft built in France in 1920 which formed the basis for a highly successful family of fighter aircraft based on the same design.
The Bougainville class was a group of colonial avisos, or sloops, built for the French Navy during the 1930s. They were designed to operate in the remote locations of the French Empire.
Rigault de Genouilly (PG-80) was a Bougainville-class aviso of the French Navy. She was designed to operate from French colonies in Africa, Asia, and the Pacific Ocean. During World War II, Rigault de Genouilly served on the side of the Allies until June 1940, and then in the naval forces of Vichy France. She was sunk in July 1940.
The French Navy created a series of heavy cruiser designs in 1939 to follow the Algérie but free of the limitations imposed on warship construction by the London Naval Treaty and Washington Naval Treaty. This series was designated C5. At the outbreak of the Second World War, all ships under construction that could not be finished in the short term were suspended, and their designs reviewed. The C5 design was modified and updated, and tentatively to be named the Saint-Louis class. All further design work on the Saint-Louis class ended with the fall of France in 1940.
The Gourdou-Leseurre GL-820 HY family of four-seat single-engined floatplanes were designed and built in France during the latter half of the 1930s by Gourdou-Leseurre. The GL-820 HY and GL-821 HY 02 were shipborne reconnaissance / observation aircraft, while the sole GL-821 HY was built as a torpedo carrier.
The SNCAC NC-420 was a French observation flying boat built by SNCAC in the 1940s. It was intended to operate from the ships of the French Navy, but although a single prototype was completed, it never flew.
The Gourdou G.120 Hy was a prototype French shipboard reconnaissance floatplane. A single prototype was completed, flying for the first time in June 1940, but was destroyed later that month to avoid capture by German troops.
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