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“Bite-Size Bits of Local, National, and Global History”
“Bite-Size Bits of Local, National, and Global History”
Near Atlantic Beach in Carteret County, North Carolina — The American South (South Atlantic)
 

Model 1861 10-inch Siege Mortars

 
 
Model 1861 10-inch Siege Mortars Marker image. Click for full size.
By Craig Swain, May 2, 2010
1. Model 1861 10-inch Siege Mortars Marker
Inscription. These are the only known surviving cannons of Fort Macon's original armament. Used in the fort 1862 to 1902. Similar to mortars used by the Union Army against the fort in the 1862 bombardment.

Weight of Barrel .......................... 1968 Pounds
Weight of Gun Carriage (Bed) .... 1830 Pounds
Gunpowder Charge ................... 4 Pounds
Weight of Exploding shell ......... 88 Pounds
Bursting Charge of Shell ........... 3 Pounds
Range ............................ 2100 Yards
 
Location. 34° 41.781′ N, 76° 40.725′ W. Marker is near Atlantic Beach, North Carolina, in Carteret County. Marker can be reached from Fort Macon Road, on the right when traveling east. Click for map. Located on the Parade Field of Fort Macon, Fort Macon State Park. Marker is in this post office area: Atlantic Beach NC 28512, United States of America.
 
Other nearby markers. At least 8 other markers are within walking distance of this marker. Welcome to Fort Macon (a few steps from this marker); Model 1841 6-pounder Field Cannon (a few steps from this marker); Model 1841 Navy 32-pounder (within shouting distance of this marker); Hot Shot Furnace (within shouting distance of this marker); Rifled 32-pounder
Model 1861 10-inch Siege Mortars and Marker image. Click for full size.
By Craig Swain, May 2, 2010
2. Model 1861 10-inch Siege Mortars and Marker
(within shouting distance of this marker); Cistern (within shouting distance of this marker); Mortar Battery (within shouting distance of this marker); Bogue Banks Lighthouse (within shouting distance of this marker). Click for a list of all markers in Atlantic Beach.
 
Categories. War, US Civil
 
Model 1861 10-inch Siege Mortar image. Click for full size.
By Craig Swain, May 2, 2010
3. Model 1861 10-inch Siege Mortar
Both mortars at Fort Macon were cast by Cyrus Alger & Company, Boston, Massachusetts in 1862. This mortar weighed 1,968 pounds when inspected by Thomas J. Rodman (initials T.J.R.). It is registry number 7.
Model 1861 10-inch Siege Mortars image. Click for full size.
By Craig Swain, May 2, 2010
4. Model 1861 10-inch Siege Mortars
The other mortar at Fort Macon is registry number 8, also from Cyrus Alger. It weighed 1,966 pounds.
Double Vents image. Click for full size.
By Craig Swain, May 2, 2010
5. Double Vents
Siege mortars usually featured two vents for placing the friction primer. These appear as small holes in the center of this view. Only one of the vents was clear to the powder chamber. The other, serving as a backup in the event of jamming or malfunction, was filled with zinc. In this view is the "U.S." acceptance mark, just above the vents.
Elevating Sockets image. Click for full size.
By Craig Swain, May 2, 2010
6. Elevating Sockets
The mortar was elevated by use of a metal leaver. The leaver was seated in the square hole in a bracket on the bed, then pushed into the sockets on the breech face of the mortar.
Mortar and Bed image. Click for full size.
By Craig Swain, May 2, 2010
7. Mortar and Bed
The mortar had an "ear" at the top, which was used to maneuver the weapon onto the bed or cart for transportation. The bed is made of wrought iron.
 
 
Credits. This page originally submitted on , by Craig Swain of Leesburg, Virginia. This page has been viewed 1,292 times since then and 3 times this year. Photos:   1, 2, 3, 4, 5, 6, 7. submitted on , by Craig Swain of Leesburg, Virginia. This page was last revised on June 16, 2016.
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