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[File of memos and numerical tables]
- AI summary (β)
- The document type is a numerical table comparing D values for capital ships, together with a brief note; it is a source comparing, by ship, D values and calculated values such as A, AD, and H relating to armor and protection in warship construction. Ship names visible include Ise, Kawachi, and Tiger, and the remarks mention “American 41 cm gun” and “our navy.” At the end are written “Minister Hiraga,” “Captain Kaneda,” and “Edage Teishirō.” Date and publication information are unknown. Keywords: capital ship, D value, armor, protection, Ise, Kawachi, Tiger, Minister Hiraga, Captain Kaneda, American 41 cm gunAuto-generated by Azure OpenAI gpt-5.5 from OCR text (which may contain errors) and image captions.
- Item ID
- 2054c8ff-e93a-4f3d-8152-285e3e8abcbf
- Catalogue ID
- 22380303
- Card catalogue
- [Materials concerning protection against projectiles] 2-1
- Doc type
- 表(主力艦D値比較)
- Category
- 軍艦構造:装甲・防御
- Extent
- Written in pencil | 1 sheet
- Holder
- 東京大学柏図書館
- Year registered
- 2007
- Remarks
- Annotated “Brother Hiraga, requesting your perusal, Kaneda”
- GCV entities
- Document












































