The 14"/50 caliber railway guns were spare US Navy Mk 4 14 inch/50 caliber guns mounted on railway cars and operated by US Navy crews in France in the closing months of World War I.
Firing from Thierville-sur-Meuse, NW of Verdun
Mk I gun car of the type that served in France
Mk I gun car with pit prepared, ready for firing
Mk II mount
14-inch/50-caliber gun
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The 14"/50 caliber gun was a naval gun mounted on New Mexico and Tennessee-class battleships. These ships also featured the first "three-gun" turrets, meaning that each gun in each turret could be "in
14-inch/50-caliber railway gun
…12-inch Mk X guns which were outranged. Upon its entry into the war, the US chose its largest and longest-ranged available naval gun to fill the gap—the 14"/50 caliber Mk 4 gun with a muzzle velocity of 2800 feet per second. The new 16-inch gun would have been preferable, but it was not yet available in numbers; spare 14-inch…
New Mexico-class battleship USS Idaho (BB-42) in 1920, showing six 14"/50 caliber guns
The 14"/50 caliber guns on USS Tennessee (BB-43) fire in support of the invasion of Okinawa