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

20mm_battery_with_Marines_on_USS_Yorktown_(CV-5).jpg ‎（740 × 598像素，文件大小：303 KB，MIME类型：image/jpeg）

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
来源 Official U.S. Navy photograph 80-G-21929.
作者 USN

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本文件是由美国海军的军官或雇员，基于其个人公务目的拍摄或制作的作品。作为美国联邦政府的作品，本文件在美国属于公有领域。
本文件已被确认为免除已知的著作权法限制（包括所有相关权利）。

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当前2011年5月21日 (六) 10:292011年5月21日 (六) 10:29版本的缩略图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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