5吋38倍徑砲


概況
研发国  美国
设计於 1932年
使用時期 1934年–1990年
使用國
 美国海军、美国海岸警卫队、英國皇家海軍、丹麥皇家海軍、義大利海軍、中華民國海軍、日本海上自卫队等
使用战争 第二次世界大战、朝鲜战争、八二三炮戰、越战、海湾战争、福克兰群岛战争等
技術數據
口径 5英寸（127毫米）
倍徑 190英寸（4.826米）
砲彈 127×680mmR
弹头重量 55.18磅（25.0公斤）
初速 2600fps（792m/s） [1]
最大射程 AAC：18,200yd（16,642m）
RAP：23,770yd（21,735m）
最高射程 [2] 37,200英尺（11,339米）
發射速度
 一般：12至15发/分钟
最高：15至22发/分钟 [3]
弹藥數量 BB、CV：450枚
CB、CA、CL：500枚 [4]
DD：300-420枚 [5]

Mk12 5吋38倍徑砲，是美國海軍於1934年研發之砲架及砲塔組合型舰炮，美國海軍多配合Mk37 GFCS射控系統使用，是作為驅逐艦主砲或大型軍艦之高射砲。

保存在高雄左營海軍陸戰隊隊史館的二戰海軍5吋38倍徑砲
保存在基隆役政公園的二戰海軍5吋38倍徑砲

参考文献

  1. ^ 砲身命数（約4,600発）までの平均初速は2,500fps （762m/s）
  2. ^ 初速2,500fps（762m/s）
  3. ^ 砲塔統合ホイスト使用時
  4. ^ アトランタ級のみ450発
  5. ^ ファラガット級、シムス級：300発
    ベンソン級、グリーブス級：320-360発
    フレッチャー級：350発(後期型は420発)
    アレン・M・サムナー級、ギアリング級：360発

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