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The 8-inch and 10-inch siege mortars had maximum ranges of 2,225 and 2,064 yards, respectively, (Abbot 1867, pp. 39–40) and the 13-inch seacoast mortar had a maximum range of 4,300 yards, but their effective ranges were much shorter. For the 8-inch siege mortar at a range of 800 yards, about 50% of the shells would fall within a 50-yard ...
Federal battery with 13-inch seacoast mortars, Model 1861, during siege of Yorktown, Virginia 1862. More featured pictures
10-inch seacoast mortar M. 1841 United States: 1841 260: 26 cm Minenwerfer M 17 Austria-Hungary: World War I 320: 320 mm Type 98 mortar Japan: World War II: 325: Mortier de 12 Gribeauval Kingdom of France: 1781 330: 13-inch seacoast mortar M. 1861 United States: 1861 914: Little David United States: World War II: 914: Mallet's Mortar United ...
USS John Griffith was a mortar schooner acquired by the Union Navy during the American Civil War.She was used for various purposes, but especially for bombardment because of her large 13-inch mortar and 12-pounder howitzers that could fire up and over tall defensive riverbanks.
13-inch: Mortar: 13: 54.5: 17,120: 200 bell: 4,200/45° Some naval guns served ashore as siege artillery. Moreover, many guns mounted on the boats of the Mississippi River Squadron were in fact Army field artillery and siege guns. **Converted smoothbore
These heavy guns were intended to be mounted in seacoast fortifications. 8-inch, 10-inch, 13-inch, 15-inch, and 20-inch bore (20, 25, 33, 38, and 51 cm) Rodman guns were produced. Other than size, the guns were all nearly identical in design, with a curving bottle shape, a large flat cascabels , and ratchets or sockets for the elevating mechanism.
She was used for various purposes, but, especially for bombardment because of her large 13-inch mortar that could fire up and over tall riverbanks. 13 Inch Mortar Racer was purchased for $7500 by the Navy at New York City 29 August 1861; and commissioned at the New York Navy Yard 21 January, Acting Master Alvin Phinney in command.
One of the "bummers", as they were known in the Union Navy. Mortar Schooner of Porter's Bombardment fleet, New Orleans, 1862. A crewman between the masts is leaning on the muzzle of the 13-inch (330 mm) seacoast mortar.(Peabody Museum of Salem) The expedition assembled at Ship Island in the Gulf. Once they were ready, the naval contingent moved ...