1 Jun 1939
  • The Japanese Navy deployed a new code, later to be named JN-25 by Allied code breakers. ww2dbase [CPC]
  • The Focke-Wulf Fw-190 fighter made its maiden flight at Bremen, Germany. The aircraft displayed excellent handling characteristics and was highly maneuverable but suffered from engine overheating problems which required the fitting on a redesigned engine cowling to overcome. ww2dbase [Main Article | AC]
  • Kiyoshi Ito joined the Yokosuka Naval Air Group. ww2dbase [Main Article | CPC]
Photo(s) dated 1 Jun 1939
Launching of Shokaku from the second construction slip of Yokosuka Naval Arsenal, Japan, 1430 hours on 1 Jun 1939

1 Jun 1939 Interactive Map

Timeline Section Founder: Thomas Houlihan
Contributors: Alan Chanter, C. Peter Chen, Thomas Houlihan, Hugh Martyr, David Stubblebine
Special Thanks: Rory Curtis

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