page_title: BL 16-inch Mk I naval gun
hierarchical_section_title: BL 16-inch Mk I naval gun
caption_attribution_description: IWM caption&#160;: "On board HMS RODNEY a group of officers and men standing on a 16 inch turret watching a "Fashion Parade". Aircraft of all types (not in the picture) fly past at a considerable height to give the Navy practice in identifying the machines. Note the 16 inch guns are at maximum elevation."
context_page_description: The BL 16-inch Mark I was a British naval gun introduced in the 1920s and used on the two Nelson-class battleships. A breech-loading gun, the barrel was 45 calibres long meaning 45 times the bore – 60 ft long.
context_section_description: The BL 16-inch Mark I was a British naval gun introduced in the 1920s and used on the two Nelson-class battleships. A breech-loading gun, the barrel was 45 calibres long ("/45" in  shorthand) meaning 45 times the bore (16 in) – 60 ft (18 m) long.
caption: Guns of HMS Rodney at maximum elevation, 1940
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