File:20mm battery with Marines on USS Yorktown (CV-5).jpg

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20mm_battery_with_Marines_on_USS_Yorktown_(CV-5).jpg ‎（740 × 598 像素，檔案大小：303 KB，MIME 類型：image/jpeg）

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摘要

描述	U.S. Marines man forward port side 20mm gun battery aboard the aircraft carrier USS Yorktown (CV-5), circa Spring 1942 (the camera is looking aft). Note the details of gun mountings and shields, rubber non-skid mats on deck and splinter protection on the outboard side of the gun gallery. Aircraft arresting gear is visible on the flight deck, at left. As a result of combat experience, 20mm gun shields were later modified with angled cut-outs on the inside top of each plate, providing the gunner with better vision to each side of the aiming point. 20mm guns were fitted when the ship was at Norfolk Navy Yard in December 1941. Those in this gun gallery were jettisoned during salvage efforts on 6 June 1942. When Yorktown´s wreck was examined in May 1998, this area was observed in detail, and all the guns and mountings seen here were missing, as were the middle segments of each gun position's splinter protection plating. (Text: NHC)
日期	1942年年春季 date QS:P,+1942-00-00T00:00:00Z/9,P4241,Q40720559
來源	Official U.S. Navy photograph 80-G-21929.
作者	USN

	這張圖像是美國海軍軍人或雇員在執行任務時拍攝或繪製的。因本圖像是美國聯邦政府的著作物，本圖像位於公有領域。
	此作品無已知的著作權限制，亦不受所有相關和鄰接的權利限制。

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目前	2011年5月21日 (六) 10:29		740 × 598（303 KB）	Cobatfor	== {{int:filedesc}} == {{Information \|Description=A U.S. Marines man forward port side 20mm gun battery aboard the aircraft carrier USS ''Yorktown'' (CV-5), circa Spring 1942 (the camera is looking aft). Note the details of gun mountings and shields, rubb

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