Kaigun Koku Gijitsusho

Japanese Imperial Navy. It appears that aircraft designated Yakosuka were designed at the first arsenal and assigned to established manufacturers or to another arsenal for series production while aircraft designated Kugisho were built in production numbers at the arsenal.

G and 2dG say six prototype seaplanes were designed at Yokosuka, 1916-1918, of which there was only one production model, the Yokosuka Rogo-Ko, a 2-seat reconnaissance; over 200 were built by Aichi and also Nakajima, 1918-1920. Under Yakosuka, SD lists five early experimental seaplanes: undescribed, 1913; Nakajima tractor, 1914; twin-engined, 1916; Ho-go Otsu-Gata, 1916; and Ho-go small, 1917. Under Yakosuka, SD also lists a Curtiss 1912 seaplane (Navy Type Ka); M. Farman 1914 (Navy Type Mo Large; and other seaplanes that sound to be of the WW1 era, including Navy Avro 504 trainer, Navy F5 flying boat, Hansa Recon Seaplane, and Sopwith Schneider Fighter (Navy Ha-go Small Seaplane), making it not possible to identify the production seaplane.. Under Kugisho, SD does not not provide any dates but does list a Kughiso ro-Go Ko-Gata reconnaissance seaplane.

G and 2dG have one listing under Yokosuka

• SD has listings under Kugisho and Yokosuka and the latter lacks a clear distinction and does not have a cross reference to the former.

Sources

• Gunston, 1993, p334
• Gunston, 2005, p520-521
• SD170-171, 313;

Organization names	Kaigun Koku Gijitsusho (Naval Technical Air Arsenal); apparently, from 1916, Dai-Ichi Kaigun Koku Gijitsusho (First Naval Technical Air Arsenal); popular name, Yakosuka, for location at Yakosuka, Japan; also officially known as Kugisho, acronym taken from the initial sounds in Koku-Gijutso-Sho.
Entity type
Country	Japan
City	First Naval Technical Air Arsenal at Yokosuka
Affiliated with
Scope
Started aero	1914
Ended aero	1945?
Keywords	2
Key people
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