Sailor looking into the breech of 16 inch gun aboard USS Alabama (BB-60).jpg
US Navy
en
Sailor looking into the breech of 16 inch gun aboard USS Alabama (BB 60), ''Looking into the Breech'' – This gunner on battleship USS ''Alabama'' (BB-60) looks through the breech of one of the 16-inch Mark 6 guns. His left elbow rests on the “mushroom” of the gun, which he keeps clean by rubbing it with the towel wrapped around his arm., Welin breech-block of a 16-inch Mk 6 gun on USS Alabama (BB-60), 1943. Note the four separate thread "steps" on the block which engage with matching steps in the breech when the block is swung up and inwards and rotated slightly clockwise
commons
en
Sailor looking into the breech of 16 inch gun aboard USS Alabama (BB 60), 16"/45 caliber Mark 6 gun, Welin breech block, Interior of USS Alabama (BB-60)
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ja
アラバマ号[BB60]に搭載された16インチ砲の後部を探るセーラー。左は銃の「マッシュルーム」に置かれ、タオルを腕に巻いていて清潔を保つ。ブロックが上下に振られ、時計回りにわずかに回転したときに、後続の一致ステップと交戦するブロック上の4つの別々のスレッド「ステップ」に注意してください。
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ja
USSアラバマの16インチ砲の後部を探るセーラー。
commons_translated
bb gun breeched breech boatmanship tied-up hair