Located on the west shore of Tokyo Bay, aproximately 28 miles south-southwest of Tokyo.  It was the site of important airbase and Naval Yard.  The airbase at Yokosuka was one of the key stations for the defense of the Tokyo area, is located approximately 28 miles south-southwest of the Imperial Palace in Tokyo and two miles north of the Yokosuka naval dockyards.

Yokosuka Airfield (NAS Oppama)
Japanese airfield and naval base, occupied by the USN.

Yokosuka Seaplane Base
Japanese seaplane base, occupied by the USN, used until the 1950s.

The Yokosuka Naval Air Factory
An aeronautical research center is immediately south and southwest of the seaplane base. The factory has about 50 buildings. The Naval Air Station, which adjoins the Tokyo Bay defense system, is subject ot frequent fogs, especially in winter. A second air field has been reported in this vicinity, but its exact location is not known.