The record flight was made from Kisarazu Naval Air Base commencing at 0445 hr on 13.5.38 and ending at 1921 hr on the 15th. Note the landing light under the wing and the naval military policeman standing guard on the right.

Самолёты на фотографии: Aircrafts on the photo: Tokyo Gasu Denki Koken - ЯпонияJapan - 1937

The crew of the Koken after the record flight. L to R, Pilot Major Yuzo Fujita, second pilot Warrant Officer Fukujiro Takahashi and flight engineer Kinkichi Sekine.

Самолёты на фотографии: Aircrafts on the photo: Tokyo Gasu Denki Koken - ЯпонияJapan - 1937

The Koken in late form with engine running and three blade metal propeller. The pitot installation can be seen under the wing inboard and forward of the aileron inner end. With the large area wing flaps were considered unnecessary.

Самолёты на фотографии: Aircrafts on the photo: Tokyo Gasu Denki Koken - ЯпонияJapan - 1937