Tokorozawa Airfield (1911)

Military conversion and post-war disarmament. Following Japan's surrender at the end of World War II, the airfield was taken over by the United States Armed Forces. Upon its eventual return to Japanese control, the decision was made to preserve its historical legacy by converting it into a public park and museum rather than reopening it as an active airfield, especially given the extensive urban development in the surrounding area.

The former airfield site has been completely redeveloped into the Tokorozawa Aviation Memorial Park (所沢航空記念公園, Tokorozawa Kōkū Kinen Kōen). The park is a large public space that includes the Tokorozawa Aviation Museum, which displays historic aircraft and chronicles the history of Japanese aviation. The park also features gardens, sports fields, and other recreational facilities. The layout of some pathways and open areas in the park intentionally follows the alignment of the original runway.

Tokorozawa Airfield is celebrated as the 'Cradle of Japanese Aviation.' It was established on April 1, 1911, as Japan's first permanent airfield and air base. The first flight from the airfield was conducted by Captain Yoshitoshi Tokugawa in a Farman III biplane on April 5, 1911. It was the headquarters of the Imperial Japanese Army Air Service and housed the Tokorozawa Army Aviation School. For over three decades, it was the principal center for military pilot training, aircraft development, and flight testing in Japan, playing a pivotal role in the nation's aviation history leading up to and during World War II.

None. The site is a historically significant and protected public park located within a densely populated urban area of Greater Tokyo. There are no plans, discussions, or prospects for it to ever be reopened as an active airport.