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[Preparatory notes for “General Trends in Warship Design among the Great Powers”; letter dated Taisho 13.12.19 from Hiraga to Katō, Aide-de-Camp to the Crown Prince, and other materials]

AI summary (β): A letter and preparatory notes organizing the structure of the imperial lecture “General Trends in Warship Design among the Nations,” the charts to be used, arrangements such as speaking time and dress, and trends in warship design. Includes a letter dated December 19, Taisho 13, from Hiraga to Katō, Aide-de-Camp to the Crown Prince, mentioning corrections to the length-to-beam ratios of Myōkō and Yaeyama. Subjects include capital ships, cruisers, aircraft carriers, destroyers, submarines, new steel materials, and internal-combustion engines under the Washington Treaty, citing Nelson, Rodney, Renown, Repulse, Kako, Akagi, Kaga, and others. No publication information. Keywords: Hiraga, Katō Aide-de-Camp to the Crown Prince, General Trends in Warship Design among the Nations, Washington Treaty, Myōkō, Kako, Akagi, Kaga, submarine, imperial lectureAuto-generated by Azure OpenAI gpt-5.5 from OCR text (which may contain errors) and image captions.
Item ID: 21ce7859-4402-4564-aadb-f9a4fa9c87df
Catalogue ID: 60440301
Card catalogue: [Charts for various lectures, part 3]
Category: 講演・講義:御前講演
Holder: 東京大学柏図書館
Year registered: 2007
Warship: Warship
Remarks: “T13.12.18 lecture at the Crown Prince’s temporary residence”
GCV entities: Document / Diagram