The next year , the first acronym was used was Yokosho , a contraction of " Yokosuka Kaigun Kōshō " ( Yokosuka Naval Arsenal ) . The arsenal was renamed " Kaigun Kōkū Shiken-sho " ( Naval Establishment for Aeronautical Research ) in December 1919 . The name " Kaigun Gijutsu Kenkyūsho " ( Naval Technical Research Institute ) was assigned by April , 1923 , when the arsenal was moved to Tsukiji with several other Naval support units . The entire Tsukiji facility was destroyed in the 1923 Great Kantō earthquake . Several names were used when the navy began establishment of the arsenal . Research was started again in 1924 when several aircraft were evaluated . Under the command of the newly formed Naval Air Headquarters , the Kaigun Kokusho ( Naval Air Arsenal ) was formed at Yokosuka on 1 April 1932 . A large amount of draftsmen and Designers were transferred from the Hiro Naval Arsenal , ending aircraft production there
1923 Great Kantō earthquake
1923 Great Kantō earthquake
Yokosuka Naval Air Technical Arsenal