Mark II Navy Railway Mount
The new Mark II gun car developed during 1918 carried the same 14"/50 caliber Mk 4 gun but addressed the problem areas : it dispensed with the armoured gun house, with gunners working in the open; the weight was more evenly spread over 20 axles instead of 12; the French system of rolling recoil was adopted, in which the gun was mounted higher to allow full recoil at maximum elevation without striking the ground and the car rolled back 30–40 feet after firing to absorb remaining recoil. This made it possible to fire the gun along any part of its curved track without any prior preparation, with elevation up to 40°. After firing the gun car used a winch mounted at the front, connected to a strong point in the ground in front, to pull itself back to its firing position. World War I ended before Mk II entered service, and it was used for coastal defense in the US.
Read more about this topic: 14"/50 Caliber Railway Gun
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