These axle journals overheated at speeds of more than 10 kilometres (6.2 mi) per hour. There are several significant advantages over traditional explosive projectile weapons. Eight 10-inch railway mounts of 54 ordered were completed by the Armistice, and twelve 12-inch railway mounts were completed by 1 April 1919; the 12-inch contract was cancelled at that point. The current used in medium to large-caliber railguns would need to be in the millions of amps. This was often done by handwheels driving gear trains attached to the wheels, or even by electric motors on more modern mounts. But France also saw the need to modernize and underwent a number of wartime reforms. While there are weapons that are only available to one or a few classes, each class has several weapons to choose from. This allowed the weapons to be used in coast defense against moving targets. While the concept of “directed-energy weapons” originated on the pages of pulp novels in the late nineteenth century, another weapon technology that seems straight out of science fiction was first theorized by a French inventor during World War I. Heat has been a problem with machine guns since their invention and an early solution was to water cool the barrel, while later the best option was to swap out the barrel and maintain fire discipline.  The great advantage of this method is that it requires minimal preparation and can fire from any suitable section of curved track.  During World War II, four railway mortars were among the temporary harbor defenses of Grays Harbor, Washington state, and emplacements for an additional four at Cape George, Washington, were constructed, but never armed. By 1916, both sides were deploying numerous types of railway guns. Both Nazi Germany and Great Britain deployed railway guns that were capable of firing across the English Channel in the areas around Dover and Calais. Return to battery is effected either by gravity, through the use of inclined rails, which the gun and carriage have run up, by springs, or even by rubber bands, on some improvised mounts. It was not capable of cross-channel firing, having a maximum range of only about 20 km (12 miles). With few exceptions these types of mounts require some number of outriggers, stabilisers, or earth anchors to keep them in place against the recoil forces and are generally more suitable for smaller guns. There is an 8-inch gun on an M1918 Railway Mount, less car, at the University of Tampa, Tampa, FL. The Americans' 14"/50 caliber railway gun Mark II used cradle-rolling recoil as did the 14 and 12 inch railway guns from Great Britain. Improved carriages were designed to allow their transportation to several fixed firing emplacements including concrete foundations where the railway trucks were withdrawn so the gun could be rapidly traversed (swiveled horizontally) to engage moving ship targets. The mount was winched back into firing position by cables fastened to the track. Far from it in fact, and the Chinese are getting closer to fielding a true railgun, while the United States Navy has continued to see the potential for such a weapon on its stealth warships—even if the expected rate of fire would be just ten rounds per minute. About 12 of these were used for the defense of Oahu, Hawaii. To shorten a long story, none of these weapons were shipped to France except three 8-inch guns, as few of any type were completed before the Armistice. Береговая артиллерия в Крымской войне 1853–1856 годов", "The United States naval railway batteries in France", "Defeating the Hun, The History of the U. S. Army, Coast Artillery Corps During WWI", Account of the 8" railway guns in the Philippines, 1940–42, "Mortar Railway Gun to Aid in Defending Coast", The Doomed Philippine Inland Seas Defense Project, "The Big Guns At Dover WW2 (World War Two)", "The UK's largest artillery piece, 1 of 12 surviving wartime railway howitzers in the world, is being moved for exhibition in the Netherlands", "Giant first world war gun on the move across southern England this week", "When Artillery First "Took to the Rails", "Gun Train Guards Ends of Panama Canal -- Rolling Fort Crosses Isthmus in Two Hours", https://en.wikipedia.org/w/index.php?title=Railway_gun&oldid=983662478, World War I artillery of the United States, Articles with Russian-language sources (ru), Articles with unsourced statements from October 2017, Creative Commons Attribution-ShareAlike License, An 11.2" or 28 cm railway gun is preserved at the, Soviet 180 mm ТМ-1-180 guns may be seen at Krasnaya Gorka fort, at the. Simply put, this creates an electromagnetic force that can launch high velocity projectiles. Moreover, he was simply ahead of his time. The railway gun provided the obvious solution. A plasma railgun is a linear accelerator and a plasma energy weapon which, like a projectile railgun, uses two long parallel electrodes to accelerate a "sliding short" armature. The range could be upwards of ten times that of traditional explosive projectile weapons. Likewise, Germany developed zeppelins to bomb England and later developed some of the earliest heavy bombers. The design of the foundation is the only limit to the amount of traverse allowed in this latter case. Due to low production and shipping priorities, the Army's railway gun contribution on the Western Front consisted of four U.S. Coast Artillery regiments armed with French-made weapons. While it might seem revolutionary today for the French military to be so forward-thinking, it should be remembered that at the start of the war its uniforms and tactics were little changed from that of a generation earlier.  Another photo exists of a gun mounted on an armoured rail car with the caption of "Railway battery used in siege of Petersburg" although no textual evidence survives in support of the caption, which makes the claim that it is a photo of the Confederate gun from 1862 dubious. A total of 96 8-inch guns (including some from Navy spares), 129 10-inch guns, 45 12-inch guns, and 150 12-inch mortars could be spared from fixed coast defense batteries or spare stocks. Examples include the French 520 mm (20 in) railway howitzer which used cradle-sliding recoil. Therefore it is almost surprising that one of the countries didn’t somehow develop a successful railgun, but the simple fact is that the war ended before Fauchon-Villeplee’s experiments were able to progress very far. The American post–World War I assessment of railway artillery considered that the utility of even a small amount of traverse for fine adjustments was high enough that either of the two latter traversing methods is preferable to a fixed mount.. 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. Ninety-one 12-inch railway mortars were ordered, with 45 complete by 7 April 1919 and the remainder eventually completed. This usually requires the gun to be mounted on a central pivot which, in turn, is mounted on the car body. In fact, the kinetic energy could be so great that a non-explosive projectile could do as much damage to a warship as a Tomahawk missile. Long war Railgun question. Already it is easy to see why it would be terribly difficult to have a railgun the size of a rifle or machine gun. On 29 June 1862, Robert E. Lee had the gun pushed by a locomotive over the Richmond and York River line (later part of the Southern Railway) and used at the Battle of Savage's Station to interfere with General George McClellan's plans for siege operations against Richmond during the Union advance up the peninsula. A sixth locomotive pulled a headquarters car for Rear Admiral Charles Peshall Plunkett, with a machine-shop car, a spare parts car, a berthing car, a kitchen car, a commissary car, and a medical dispensary car. , After the American entry into World War I on 6 April 1917, the U.S. Army recognized the need to adopt railway artillery for use on the Western Front.