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“Bite-Size Bits of Local, National, and Global History”
“Bite-Size Bits of Local, National, and Global History”
Baltimore, Maryland — The American Northeast (Mid-Atlantic)
 

The Great Guns of the Fort...

The Rodman Cannons

 
 
The Great Guns of the Fort... Marker image. Click for full size.
By Allen C. Browne, October 13, 2012
1. The Great Guns of the Fort... Marker
Inscription. The guns in front of you are the heaviest cannons ever mounted at Fort McHenry. The largest fired exploding projectiles weighing 440 pounds. Mass-produced they represent the "coming of age" of America's iron industry. A special process developed by Thomas J. Rodman, enabled them to cool from the inside out giving them durability and their distinctive bottle-shaped appearance.

Installed in 1866, the Army improved the Rodman Guns with rifling (grooved barrel) a decade later. The Hydraulic cylinder and bumpers coated with rubber were added in 1888. Obsolete not long after they were installed, they were fired only for ceremonies such as the Fourth of July and Defender's Day.
 
Erected by National Park Service.
 
Location. 39° 15.786′ N, 76° 34.747′ W. Marker is in Baltimore, Maryland. Touch for map. The marker is inside Fort McHenry, 2400 E Fort Ave, Baltimore along the Outer Battery. Marker is in this post office area: Baltimore MD 21230, United States of America.
 
Other nearby markers. At least 8 other markers are within walking distance of this marker. Experimental Carriages (here, next to this marker); O Say Can You See? (a few steps from this marker); Outer Battery (a few steps from
The Great Guns of the Fort... Marker image. Click for full size.
By Allen C. Browne, October 13, 2012
2. The Great Guns of the Fort... Marker
this marker); Entering Fort McHenry ... A Deadly Crossfire (within shouting distance of this marker); 1814 Enlisted Men's Barracks, No 2 (within shouting distance of this marker); Bombproofs (within shouting distance of this marker); Civil War Guardhouse (within shouting distance of this marker); The Ravelin (within shouting distance of this marker). Touch for a list and map of all markers in Baltimore.
 
Categories. Forts, CastlesWar, US Civil
 
The Fourth of July, 1903 image. Click for full size.
By Allen C. Browne, October 13, 2012
3. The Fourth of July, 1903
Firing the guns on July 4, 1903. Note the cranes next to each gun to hoist ammunition.
Close-up of photo on marker
Rifled Rodman image. Click for full size.
By Allen C. Browne, October 13, 2012
4. Rifled Rodman
An iron sleeve has been added to this Rodman gun to rifle it.
Do Not Climb on Cannons image. Click for full size.
By Allen C. Browne, October 13, 2012
5. Do Not Climb on Cannons
Rodman Guns<br>Overlooking Baltimore Harbor image. Click for full size.
By Allen C. Browne, October 13, 2012
6. Rodman Guns
Overlooking Baltimore Harbor
Muzzle image. Click for full size.
By Allen C. Browne, October 13, 2012
7. Muzzle
These smooth bore muzzle loading guns were the pinnacle of Coast Artillery development in the mid 19th century.
 
 
Credits. This page was last revised on June 16, 2016. This page originally submitted on June 1, 2013, by Allen C. Browne of Silver Spring, Maryland. This page has been viewed 595 times since then and 45 times this year. Photos:   1, 2, 3, 4, 5, 6, 7. submitted on June 1, 2013, by Allen C. Browne of Silver Spring, Maryland. • Craig Swain was the editor who published this page.
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