had many names, each depending on the period of its existence, and the circumstances at that time. Many of the names were acronyms that were derived from its military name or designation, which changed from time to time. The arsenal was sometimes known as "Kūgi-shō" (空技廠, a contraction of "Kōkū Gijutsu-shō" 航空技術廠). The name Yokosuka prevailed however, even though it referred to the Arsenal's location at Yokosuka, Japan.

History

The air arsenal's roots go back to 1869 when the Imperial Japanese Navy (IJN) established a naval arsenal at Yokosuka, about 13 miles south of Yokohama on Tokyo Bay. The arsenal provided ship building, repair and replenishment to the Japanese Navy. It was also a storage depot where munitions and other assorted supplies were brought as they were purchased.|alt=]]

;Torpedo bomber

  • Yokosuka Twin-engined Seaplane - 1916 biplane torpedo bomber; first Japanese twin-engine aircraft
  • B3Y - -1933 biplane torpedo bomber
  • B4Y - - 'Jean' 1936 biplane torpedo bomber

;Dive bomber

  • D2Y - prototype dive bomber, lost to the Aichi D1A
  • D3Y - or - 1945 two-seat dive bomber/trainer based on the Aichi D3A
  • D4Y - - 'Judy' 1942 two-seat carrier-based dive bomber
  • D5Y - - Kamikaze version of the D3Y

;Reconnaissance aircraft

  • Yokosuka Nakajima Tractor - 1915 reconnaissance seaplane
  • Ho-gō Type B Seaplane - 1916 reconnaissance seaplane
  • Ho-gō Small Seaplane - 1917 reconnaissance seaplane
  • Ro-gō Type A - 1918 reconnaissance floatplane
  • D4Y1-C - - 1942 ship-based reconnaissance version of D4Y, produced by Aichi
  • E1Y - - 1923 reconnaissance floatplane
  • Tatsu-gō Reconnaissance Seaplane - 1925 reconnaissance seaplane prototype
  • 1-gō Reconnaissance Seaplane - 1925 submarine-based reconnaissance seaplane
  • E5Y - - 1930 reconnaissance floatplane
  • E6Y - - 1933 submarine-based reconnaissance floatplane
  • E14Y - - 'Glen' 1941 submarine-based reconnaissance floatplane
  • R1Y - - prototype reconnaissance aircraft
  • R2Y - - 1945 prototype reconnaissance aircraft

;Flying boat

  • H5Y - - 'Cherry' 1939 maritime reconnaissance flying boat
  • H7Y - 'Tillie' 1939 prototype flying boat

;Trainer

  • I-gō Type A - 1920 seaplane trainer
  • K1Y - - 1925 biplane trainer
  • K2Y - - Japanese-built Avro 504
  • K4Y - - 1933 floatplane trainer
  • K5Y - -'Willow' 1934 biplane trainer

;Transport

  • L3Y - - Yokosuka-built transport version of Mitsubishi G3M

;Special purpose

  • MXY1 - 1939 experimental parasol monoplane for aerodynamic research; built by Watanabe
  • MXY2
  • MXY3 - experimental radio-controlled target glider (drone)
  • MXY4 - experimental radio-controlled target aircraft (drone)
  • MXY5 - transport glider
  • MXY6 - unpowered gliders for development of the Kyushu J7W
  • MXY7 - - 'Baka' 1945 rocket-powered kamikaze attack aircraft
  • MXY8 - - training glider based on the Mitsubishi J8M; known as Ku-13 in IJA service
  • MXY9 - - motorjet powered version of MXY-8 (project only)
  • MXY10 - ground non-flying decoy of P1Y
  • MXY11 - ground non-flying decoy of Mitsubishi G4M

;Bomber

  • P1Y - 'Frances' 1944 twin-engine bomber
  • - jet-powered version of the P1Y (project only)

References

Notes

Bibliography

  • Francillon, R.J. Japanese Aircraft of the Pacific War, Putnam, London, 1970, SBN 370 00033 1
  • Mikesh, Robert and Shorzoe Abe. Japanese Aircraft 1910–1941. London: Putnam, 1990.