The of the Ministry of the Navy of Japan was responsible for the development and training of the Imperial Japanese Navy Air Service. In 1941 it was headed by Vice-Admiral Eikichi Katagiri and was organized as follows: General Affairs Department Air Naval Intelligence Department Land Based Airfield Engineering Department Training Department - ensured that qualified personnel were sent to the Combined Air Training Command at Kasumigara. Technical Department - Designed new aircraft and equipment plus was responsible for the storage and repair of aircraft at Naval Air Arsenals Aomori Koza Hiro Omura or Sasebo Kanoya Kasumigara Yokosuka Navy Training Schools and Units Training for the IJNAS are conducted under training unit led directly by the Naval Air Bureau. Such unit could either be an actual combat air group(Kōkūtai) or a proper training unit. For training pilot for carrier operation, light carriers are employed. Such schools and units was named after the place where they were established (cities, towns or Arsenal/Base), or with the carrier name if it is a carrier based unit. A numbering system is also used. For example, the 12th combined air group(training) based at Kure consist of the Ōita, Usa, Hakata and Ōmura training air group. Navy training units by name Oppama Chitose Genzan Tainan Tokushima Konoike Ōita Ōmura Tsukuba Yokosuka Hyakuri Kasumigaura Tsuikui Kuiko Shanghai Suzuka Tsuchiura Kaminoike Training Carriers Hōshō Ryūhō See also List of Imperial Japanese Navy Air Force Service personnel (WWII) Organization of the Imperial Japanese Navy Air Service References Imperial Japanese Navy Air Service Imperial Japanese Navy Units of the Imperial Japanese Navy Air Service