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I saw this 14-inch Railroad gun at the Washington Naval Yard in 1998.
Navy Yard Railroad Gun
Posted from atlasobscura.comPosted in these groups: 
Washington Navy Yard
Military History
Paris
Logistics
91A-Officer: Ordnance Officer
Washington Navy Yard Military History Paris Logistics 91A-Officer: Ordnance Officer
Posted 6 y ago
Responses: 9
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I didn't realize that the U.S. built any railroad guns; thought they were all only in Europe by countries over there. That's interesting!
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LTC Jason Mackay
Edited with humility: that's a US Navy 14" from WWI. We did not get deep into this in WWII. They were materiel and manpower intensive. I think we bailed on the concept. Note the surviving railway guns. https://en.m.wikipedia.org/wiki/Railway_gun
We had Atomic Annie 280mm of fun goodness that was a tractor trailer that was rear steerable. Don’t know who got it in the CASCOM APG divorce. It looks like the Bethlehem Steel 177 discussed in the link.
We had Atomic Annie 280mm of fun goodness that was a tractor trailer that was rear steerable. Don’t know who got it in the CASCOM APG divorce. It looks like the Bethlehem Steel 177 discussed in the link.
A railway gun, also called a railroad gun, is a large artillery piece, often surplus naval artillery, mounted on, transported by, and fired from a specially designed railway wagon. Many countries have built railway guns, but the best known are the large Krupp-built pieces used by Germany in World War I and World War II. Smaller guns were often part of an armoured train. Only able to be moved where there were good tracks, which could be...
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SGT Matthew S.
I've seen one of the surviving Atomic Annie's on the hill above Ft. Riley - quite a sight to behold. While, as you said, large weapons like that have incredible material & manpower requirements, they were quite an impressive feat to design, build & put in to service.
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There is still a lot of heavy ordnance ay the Navy Yard. There used to be an 18” gun barrel there. But I think some museum got it a few years back.
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SCPO Morris Ramsey
MSgt Gerald Orvis The 18"/48 caliber Mark 1 – United States Naval Gun was the initial name and design for large caliber naval gun in the early 1920s. After the Washington Naval Treaty prohibited the development of guns larger than 16 in (406 mm), the gun was relined and finished as a high velocity 16"/56 Mark 4 gun. After the start of World War II, the gun was again relined to 18" and tested with a new Super Heavy Shell. The gun in its final form is currently displayed at the Dahlgren Naval Weapons Facility in Virginia, USA.
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