There is no fixed correlation between this date and the date of completion. In referring to the TATSU it is important to remember that the date of announcement simply indicates that the ship was under construction at that time. (3) Major shipbuilding has been carried on entirely in the home islands, with the bulk of it concentrated in a few shipyards in the great industrial areas of Japan. (2) Beginning in 1943, a tremendous proportion of warship construction has been devoted to escort vessels.

(1) Construction of fleet units has concentrated overwhelmingly on carriers, with a notable deficiency of both heavy surface units and fleet type destroyers. Three salient points emerge from this analysis: They are also presented graphically according to type and date of construction. In the following pages the contents of these TATSU are presented, arranged by type and by the shipyards which did the construction. Of the warships definitely known, from other sources, to have been built or converted during this period, only the converted CVLs Ryuho, Chitose. These TATSU are believed to be authentic and practically all-inclusive. Additional documents, captured on Iwo Jima, have carried the list as far as 25 October 1944. Captured documents had previously provided a complete list of official Navy announcements of new construction and conversions (TATSU) from 5 February 1941 to. Information from official sources is now available on the details of Japanese Naval shipbuilding from early 1941 almost to the end of 1944.

Ikuna meaning in japanese