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[Gunnery Test Notebook]

AI summary (β): 試験ノート・技術メモで、海軍の砲熕試験、装甲貫徹、弾丸の水中威力・防禦力、十二粍機銃等の実験要領・計算・成績を断片的に記す。海軍技術研究所、艦政本部、横須賀方面とみられる記載、内藤初穂先生、中村少佐、池田技、野口技、田比氏十二粍機銃、Hadfield's Steel Foundry Co., Ltd.が見える。大正五年十月廿九日、大正十年度迄、1915・1916等の記載あり。キーワード: 砲熕試験, 海軍技術研究所, 艦政本部, 装甲貫徹, 水中弾威力, 防禦力, 十二粍機銃, Hadfield's Range Diagram, 内藤初穂, 中村少佐Auto-generated by Azure OpenAI gpt-5.5 from OCR text (which may contain errors) and image captions.
Item ID: 64229a26-8f59-4918-84da-02498f4373e1
Catalogue ID: 120030125
Category: その他資料:日記・書翰・写真・学位記など
Extent: Loose-leaf style notebook | 144
Holder: 東京大学柏図書館
Year registered: 2016
Affiliation: 海軍
Content: Pages numbered by hand. Up to p. 137. Inserts (Professor Naito Hatsuho, 2/1, visit to university for survey; draft instruction (Navy letter paper; research on the power and defensive capability of underwater projectiles (?))), memo paper dated August 26, 1925; very small handwriting throughout. The words “Efficiency of firing” (p. 29). Records of shell firing results.
Notes: Formerly held on deposit at Yokohama National University. Table 1. Hiraga Yuzuru, personal effects (notebook-related). Collected by the late Yoshioka Isao, professor emeritus, Yokohama National University (arranged by Hirayama Tsuguharu, professor emeritus, Yokohama National University).
GCV entities: Book / Notebook / Handwriting / Document / Calligraphy / Map / Diary / Drawing / Diagram / Artwork / Floor plan / Plan / Sketch