052127参考資料� �東大に多くの� ��船図面が所蔵 されていた経� �について」(PDF ファイル).pdf

The University of Tokyo has a large collection of ship diagrams, including 27 diagrams of small passenger and cargo ships. The history of how these diagrams were collected is not well-documented, but it is believed that they were provided by various companies and organizations during the post-war period. The ships were built between 1946 and 1948, and were part of a group of 28 ships known as the "28 ships group". The construction of these ships was planned and approved by the Japanese government and the Allied powers, and was intended to help alleviate the shortage of passenger and cargo ships in Japan after the war. The diagrams were likely used for research and testing purposes, including the calculation of stability and maneuverability. Some of the diagrams were also used to study the stability of the ships in various weather conditions. The collection of diagrams is an important resource for researchers and historians, and provides valuable insights into the development of the Japanese shipping industry during the post-war period.