If you fuze, you may not lose. Tiny artillery components exhibited at the National Civil Naval Museum provide proof of ingenuity in small packages

Many Civil War artillery shells featured fuzes that were inserted into the top of the round. They increased reliability and reduced failures to detonate.

The National Civil War Naval Museum in Columbus, Ga, provides examples in an exhibit case filled with gun tools and devices. (Picket photos)

One of the artifacts came from the wreckage of the CSS Jackson (Muscogee) ironclad, which was manufactured in Columbus and set afire by Union troops when they took the city in April 1865.

A member of a salvage team that raised the wreck from the Chattahoochee River in the early 1960s kept a few items, including a fuze for one of the six Brooke rifles employed by the Jackson. The man’s daughter donated the artifact a few years ago, says museum director Brandon Gilland.

“I started working on this piece right away,” Gilland told me. The fuze was encrusted in grime.

Former curator Jeff Seymour dropped by one day and told Gilland the fuze may still be live.

“You can’t put a live fuze on display,” said Gilland who used brushes and toothpicks to disassemble the fuze and remove the black powder and paper wadding (Note: only those trained in ordnance should attempt to do this.)

The fuze would have been used for a 6.4-inch or 7-inch shell on the ironclad. Gilland says the top says “10 SEC” to describe the time of desired detonation for the shell.

Gilland said he does not know who manufactured this fuze.

Next to it is a Confederate fuze igniter, or friction primer, made by C.A. McEvoy of Richmond , Va. McEvoy invented the igniter and it went into service in 1863.

The Horse Soldier store, which sells Civil War equipment and uniforms, provided thisdescription when it sold one of the McEvoy friction primers. The item included a wood cylinder, lead weight and a wire pin.

“Instead of relying on the discharge of the artillery piece to ignite the paper time fuses, McEvoy adapted the principle of the friction primer.”

“The lead weight … had a small hole running its length and was filled with a fulminate compound. A serrated wire ran through the lead and was suspended by a cross pin through the wood cylinder. Upon firing, the set-back force cause the lead piece to be pulled free, igniting the fulminate and in turn the paper time fuse underneath.”

READ MORE ABOUT THE MUSEUM:

https://civil-war-picket.blogspot.com/2026/04/quick-hits-national-civil-war-naval.html

https://civil-war-picket.blogspot.com/2026/03/if-youre-fan-of-craftsmanship.html

https://civil-war-picket.blogspot.com/2025/04/its-bid-to-build-two-effective.html

https://civil-war-picket.blogspot.com/2025/03/holly-wait-led-national-civil-war-naval.html

Savannah dredging operations brought up numerous Civil War and Revolutionary War cannons and artifacts. How did the projects and weapons compare?

CSS Georgia Dahlgren pulled up from river in 2015; one of the Revolutionary War cannons in 2021 and this week's unveiling of conserved artillery pieces at the Savannah History Museum (U.S. Army Corps of Engineers photos)

A stunning collection of Revolutionary War cannon recovered off Old Fort Jackson in Savannah, Ga., is now on public display, the culmination of an extensive archaeological and conservation effort.

A contractor dredging the Savannah River in 2021 came across the first of the 19 artillery pieces, which some thought might belong to CSS Georgia, a Confederate ironclad that was scuttled nearby by its crew in December 1864. But it soon became apparent they dated to the American Revolution and the British siege of the city in 1779. They were on ships scuttled by the British to prevent French support of the colonists.

The surprise discovery of the Revolutionary War weapons came following the 2015-2017 recovery of items associated with the Civil War ironclad.

That U.S. Army Corps of Engineers harbor deepening project, which involved contractors and U.S. Navy divers, recovered more than 30,000 CSS Georgia artifacts, including 241 pieces of ordnance, five cannons and two large casemate sections. The latter were documented and left in the water.

A section of the CSS Georgia's casemate in 2017 (U.S. Army Corps of Engineers)

The Corps of Engineers worked with Texas A&M University to conserve the CSS Georgia material and then 17 of the cannons associated with the Revolutionary War. The Savannah History Museum this week opened “Loyalists and Liberty: Savannah in the American Revolution.”

Chris Dostal, director of the conservation lab at Texas A&M, told the Civil War Picket:

“From a conservation standpoint, both projects involved large, concreted iron artillery from a marine or riverine environment, but the Savannah River cannon presented a particularly unusual opportunity because so many guns were recovered together, several with associated bore contents preserved.”

Some CSS Georgia artifacts are on display at the National Civil War Naval Museum in Columbus, Ga. (At left, one of its propellers, Picket photo).

That venue "is the only institution with CSS Georgia artifacts on loan from our office," said Kate Morrand, a conservator with the Naval History and Heritage Command. "The remainder of the CSS Georgia collection includes over 5,100 artifacts and is curated by the NHHC Underwater Archaeology Branch, based at the Washington Navy Yard."

The command was involved in the CSS Georgia project but the Revolutionary War cannons were not under its purview.

The Picket recently asked Corps officials to provide some context to how both archaeological projects dovetailed or differed.

The following responses came from Francis “Franky” Stankiewicz with Chronical Heritage, Andrea Farmer, archaeologist with the Savannah district of the Army Corps, and Cheri Pritchard, media relations chief with that office. The responses have been edited for brevity and context.

Q1: Are you any closer to knowing precisely which British ships these Revolutionary War cannon belonged to? I know the HMS Rose was ruled out.

A: We have learned a great deal since the cannon were conserved, but I would not say we can assign individual guns to specific vessels with certainty. The strongest current interpretation is that the assemblage most likely originated from the armed ship Savannah, formerly the American privateer General Arnold, and the British transport Venus, both of which were associated with the 1779 Siege of Savannah. Current research suggests that domestic colonial production is the most likely origin for the guns attributed to the General Arnold/Savannah. However, manufacture in Britain, France (particularly Bordeaux), or Spain (particularly Bilbao) cannot be ruled out. Within the realm of domestic production, Rhode Island and Pennsylvania presently appear to be the most probable manufacturing centers.

Andrea Farmer with two reenactors at the Savannah History Museum (USACE photos)

Q: There was early speculation these 19 cannons might date to the Revolutionary War era but might have been placed on the CSS Georgia or fortifications. What led you to determine they dated to the Revolution?

A: The Revolutionary War interpretation rests on several lines of evidence. Typologically, the guns are mid-to-late 18th-century 6-pounders, including examples exhibiting Armstrong-pattern characteristics as well as related short-gun variants. Historically, British and French accounts document the burning and scuttling of armed vessels in this section of the Savannah River during the 1779 Siege of Savannah, consistent with the location of the recovery area. Archaeologically, many of the cannon were recovered in a loaded condition, containing tampions, wadding, shot, powder cartridges, fuse remains, and powder residue, indicating that they were likely prepared for immediate use rather than discarded at a later date. Taken together, the age, location, and loaded condition of the guns strongly support their association with the Revolutionary War-era scuttling events in the Savannah River.

Q: From an archaeological and conservation viewpoint, how different are these cannons vs. those found at CSS Georgia site?

A: From a conservation standpoint, these cannons were unusually rich in sealed contexts. Most were heavily concreted and contaminated cast iron, but many still held preserved bore contents. That meant conservation was also excavation: tampions, hemp junk wads, shot, cartridges, and residues had to be removed and documented in sequence. CSS Georgia material, by contrast, is Civil War ironclad wreckage and ordnance context: later, more industrial, and tied to an armored floating battery. The Savannah cannon assemblage is earlier, Revolutionary War-era muzzle-loading artillery, and its research value comes heavily from the combination of gun form, loading evidence (i.e., material within), and scuttling context. (See link for more photos)

Q. I know the investigation into CSS Georgia concluded a few years back. Have you learned anything more about the site or vessel since then?

A: The CSS Georgia investigation itself concluded earlier, and the current investigations do not indicate a major new interpretation of the vessel since that work. What they do add is a broader landscape context: the cannon cluster site lies near, but is not part of, the CSS Georgia site, and prior mapping work around CSS Georgia actually helped identify the Revolutionary War cannon concentration.

Q: Do you have a schematic/map or illustration showing their precise location in the Savannah River? And do you have anything similar showing the CSS Georgia cannon location -- or both put together?

A: To help preserve and protect these cultural resources long-term, we are not publicly disclosing their precise locations. While the locations are known to a limited number of researchers and resource managers, there is broad agreement that this information should remain restricted for now. Limiting access helps protect the sites from disturbance while supporting future research and analysis that may provide additional insights. Researchers continue to use a variety of mapping products, including sonar and multi-beam imagery of the Cannon Cluster Site near Fort Jackson. Specific details about the exact locations of these resources and their relationship to one another are also being withheld to support ongoing stewardship and future study. In addition, the Savannah Harbor shipping channel is heavily trafficked by large commercial vessels. Restricting site locations helps discourage unauthorized diving activity and reduces potential safety risks. (At left, anchor from one of the 18th century vessels, USACE)

Q: Finally, what is your long-term perspective on both CSS Georgia and these 19 cannons -- What do they tell us about their chapters in American history?

A: Although separated by nearly a century, CSS Georgia and the Revolutionary War cannon cluster represent two distinct chapters in Savannah's long history as a strategically important river port. CSS Georgia represents the Civil War effort to hold the river with improvised Confederate naval technology, including an ironclad that functioned more as a floating battery than an effective maneuvering warship. The cannon cluster reaches back to the Revolution when British forces deliberately used vessels and their armament to obstruct the river and help stop the French fleet during the Siege of Savannah. Together, they show that control of the Savannah River was repeatedly central to military strategy, commerce and the fate of the city.

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Postscript: Gordon Watts' perspective on the RevWar cannons

Archaeologist Gordon Watts, who dived and studied the CSS Georgia wreck site for decades, was present for the recovery of artifacts and helped write a final report on the project. I asked him for his perspective on the Revolutionary War cannons.

Gordon Watts studies CSS Georgia casemate section in 2017 (Civil War Picket photos)

Q. Were you surprised that British cannons were found near Old Fort Jackson?
A.  No surprise. If familiar with the Revolutionary War in Savannah, Fort Jackson did not even exist at that time. Construction on that fortification did not begin until 1808.

Q. Any reaction to their discovery? Also, what do you think of the combination of Civil War and RevWar artillery in the same area?
A. Initial reaction was with the lack of associated Revolutionary War vessel remains with the ordnance.  Savannah was the site of considerable Revolutionary War military and naval activity. Likewise, Savannah was the site of considerable military and naval activity during the War Between the Confederate States and the United States. The presence of sunken vessel remains and artifacts in the Savannah River in the proximity of the city is not unusual.

Q. Have you learned anything more about the site or vessel since then?
A: Conservation and analysis of the ordnance, casemate structure and cultural material from the CSS Georgia has shed considerable light on one of the earliest Confederate Ironclads. The CSS Georgia underwater archaeological investigations was, and remains, one of the most comprehensive undertaken to date and has resulted in extensive historical research and publication.

The archaeological investigation has produced an extensive collection of ordnance, vessel structure and cultural material that supports informative displays.

Q. Anything else?
A.  Very pleased to see the levels of interest in and support for documentation and exhibition of material associated with both of the Savannah River underwater archaeological sites. Hopefully, that level of interest will inspire similar investigation of other underwater archaeological sites in the Savannah and back rivers and other sites in waterways farther away but closely associated with Savannah and Georgia's history.

Quick hits: National Civil War Naval Museum director Brandon Gilland explains work on ironclad CSS Jackson's fantail in four 30-second videos. Check 'em out!

Museum chief Brandon Gilland looks over pieces of the Jackson's fantail armor (Picket photo)

Longtime followers of this blog know I have a fascination with a component of the Confederate ironclad CSS Jackson, which was raised from the Chattahoochee River near Columbus, Ga., in the early 1960s.

As I wrote last month, the National Civil War Naval Museum is reassembling 28 heavy pieces of iron that made up the fantail of the Jackson.

The precisely built curved rear deck that protected the vessel’s rudder and propellers had sat outside the Columbus venue for decades, waiting for new life. But a 2020 arson fire that raced through a pole barn dashed hopes of conserving the fantail in its original form. While the armor was scorched, it survived. The timbers holding them together were ruined.

I recently paid a visit to the museum and shot videos of director Brandon Gilland explaining the project (please watch them in order as placed below). He and volunteers arranged the iron in the shape of a half moon, in preparation for flipping and placing the pieces onto a cedar base attached to blocks.

When the project is completed in a few months, visitors will be able to get an idea of how the armor built at the stern was constructed and protected the ironclad. (Note: The armor originally was placed above the wood on the Jackson; the videos show the iron pieces upside down; they will be at top in the exhibit.

The project is timed to the museum’s 25^th year in a large building situated on Victory Drive and a hundred or so yards from the river. Officials had originally hoped to build a full recreation of the fantail, showing its fascinating contours, but the idea was deemed too expensive and ambitious.

The Jackson (originally named the Muscogee) was designed to protect Columbus – a critically important industrial center for the Confederacy -- from Union navy marauders and blockaders. Construction on the Jackson began in early 1863. The underpowered vessel never became fully operational. (Picket photo at left; click to enlarge)

Remains of the Jackson and the twin-screw wooden ship CSS Chattahoochee are the star exhibits of the museum.

Both were lost in April 1865 at war’s end -- the Jackson set afire by Federal captors and the Chattahoochee scuttled by its own crew. Neither vessel saw action.

If you're a fan of craftsmanship, the reassembly of the ironclad CSS Jackson's fantail at the National Civil War Naval Museum will give you an insight into ingenuity

Inverted fantail in place, volunteer Stephen Diamante (NCWNM photo); fantail before arson (Picket photo)

The National Civil War Naval Museum is using tools, brawn and some creative thinking to reassemble 28 heavy pieces of iron that made up the fantail of the ironclad CSS Jackson.

The precisely built curved rear deck that protected the Confederate vessel’s rudder and propellers had sat outside the Columbus, Ga., venue for decades, waiting for new life. But a 2020 arson fire that raced through a pole barn dashed hopes of conserving the fantail.

Now, director Brandon Gilland and volunteers at the museum are arranging the iron in the shape of a half moon, in preparation for flipping and placing the pieces onto a cedar base. When the project is completed, visitors will be able to get an idea of how the armor built at the stern was constructed and protected the ironclad. (Note: The armor was placed above the wood on the Jackson; photos here are of the fantail upside down)

Pallet jack and crane hoist are aiding in the remaking of the Jackson's fantail (NCWNM photos)

Thus far, the team has used a pry bar and pallet jack to move the 400-pound plus pieces from where they have been stacked near the hulking remains of the Jackson. A crane hoist will help them turn the iron over.

Gilland told the Picket this week he will likely use some computer software to help match up the pieces with the new wood backing. A forklift may be required.

He likens the effort to the exacting work done by the builders of the ship on the Chattahoochee River that divides the western Georgia city and Alabama.

“American ingenuity,” the director quipped.

The project is timed to the museum’s 25^th year in a large building situated on Victory Drive and a hundred or so yards from the river. Officials had originally hoped to build a full recreation of the fantail, showing its fascinating contours, but the idea was deemed too expensive and ambitious.

Instead, the pieces will be arrayed with some wood beneath. Gilland would like for the fantail to be slightly elevated, if possible.

The price tag will be about $2,500 for frame work, said Gilland.

The original goal was to have the modest display ready for the March 21 RiverBlast, an annual event that includes cannon firings, living historians, food, family events and more.

The work is taking more time than envisioned, and will go another month or more.

Scorched iron was cleaned up by conservators

Robert Holcombe, a naval historian and former director of the museum, previously told me besides the CSS Georgia in Savannah, the fantail may have been the only piece of wood from a Confederate ironclad with iron plating still attached.

A fire set by Union cavalrymen in 1865 and the second lit by the arsonist took away the dignity – and most of the supporting wood.

A few years ago, Terra Mare Conservation treated and numbered the armor, digitally mapped the artifact and produced a fascinating video showing how it was designed and put together. Visitors can stand near one of the Jackson’s propellers and watch the looped production (NCWNM photo, right).

Bolts and other fasteners are in crates. Charred wood lies on pallets. The museum said it is impossible to reuse that timber, fashioned from longleaf pine.

“I got all the armor sequenced to how it was taken apart,” Gilland said of the iron. “We are pushing it all together like it would have been (put) together.”

The finished product will rest near the propeller.

If at first you don't succeed ...

The Jackson (originally named the Muscogee) was designed to protect Columbus – a critically important industrial center for the Confederacy -- from Union navy marauders and blockaders. Construction on the Jackson began in early 1863.

The original paddlewheel design proved a failure and engineers decided to go with a dual-propeller system in 1864. Gilland said visitors can see where the old wheel was attached to the hull.

Builders then came up with the ingenious fantail, which featured differing lengths of iron. Gilland speculates some of that may be by design while other sections may have been pieces refitted to fit the latter plan. Some pieces have an extra hole or two for a bolt (left), lending credence to that belief.

Jeff Seymour, director of history and collections at the museum at the time of the arson blaze, wrote about the casemate ironclad’s fantail:

“As each level emerged, we were able to see elements of this vessel that no one has seen since 1864. As each level surfaced, several questions about how the Jackson was constructed were answered, but many more questions developed. Simply, this structure is much more complex than we thought heading into this project."

Crew of the CSS Jackson (Muscogee) aboard vessel on Chattahoochee River (Wikipedia)

The ironclad’s two engines and four boilers – manufactured in Columbus – were not operational when the city fell, and there’s a question about how well they would have performed, anyway. At best, the Jackson would have done about 5 knots.

Remains of the Jackson and the twin-screw wooden ship CSS Chattahoochee are the star exhibits of the museum. Both were lost in April 1865 at war’s end -- the Jackson set afire by Federal captors and the Chattahoochee scuttled by its own crew. Neither vessel saw action.

They were recovered from the Chattahoochee River in the early 1960s (fantail below) and a museum was built to house them (it no longer exists). Older photos indicate not all iron pieces of the fantail were salvaged.

(National Civil War Naval Museum photos)

Iron will resemble a giant folded fan

As of this writing, the museum had arranged 17 of the fantail pieces in a semicircle. Eleven more will be positioned before the flip (there are two surplus pieces, said Gilland).

“It is looking really good,” the director said Thursday. 

Gilland’s crew will soon turn their attention to the cedar base.

“We can do precise measurements of the underside, and then we will make the framework.”

Another cool factor: Some of the original bolts will be placed into the holes.

USS Monitor: How was it modified during its brief service? How did it sink? Remarkable 3D images, animation will add to our appreciation of ironclad, crew

View of the bow and forward section, with armor belt section nearby; 3D model of USS Monitor as it appeared in July 1862; another view of the inverted hull, captured last fall. (Northrop Grumman)

New breathtaking, high-resolution images of the USS Monitor wreck are available on a government website that includes animation of the famous ironclad’s sinking and 3D models of how it appeared at various times during its brief life.

NOAA’s Monitor National Marine Sanctuary rolled out the page – which includes a four-part timeline about the vessel – on Saturday after a presentation on the results of a September 2025 mapping of the wreck site off Cape Hatteras, N.C.

Sanctuary research coordinator Tane Casserley told an audience at Mariners’ Museum and Park in Newport News, Va., that the ironclad, despite damage from its March 1862 fight with CSS Virginia, its sinking ninth months later and artifact recovery projects 25 years ago, looks great.

“It is in fantastic shape, so the same armor belt that was built to repel cannonballs in the Civil War is now holding that cultural heritage together today,” he said. “I was surprised by just how intact things were.”

NOAA and its partners Northrop Grumman and Stantec showed off some of the sonar-produced images of USS Monitor, which was discovered in 1973. A Northrop Grumman unmanned underwater vehicle was equipped with a micro synthetic aperture sonar (µSAS) system during the expedition. The system is a big upgrade over old side-scan sonar.

The system penetrated low-visibility conditions to generate extraordinary imagery of the wreck and its surrounding debris field, including detailed views of hull remains and internal structure, according the museum.

The website features a 41-second animation of the Monitor’s sinking during a storm on Dec. 31, 1862. The clip shows the doomed ironclad bobbing in heavy seas and the “glub glub” of water as it dips beneath the surface and turns before slamming into the sea floor 240 feet down. The turret tumbles away upon collision.

John Broadwater (photo below), a maritime archaeologist who has been on numerous Monitor expeditions and is a former superintendent of Monitor Marine National Sanctuary, was among those attending Saturday’s program and his name was mentioned when the unveiling turned to the animation.

“Two of the developers of that animation came up to me and enthusiastically said they were glad to meet me," Broadwater told the Picket. "One said that when she was working on the sinking sequence, she had my Monitor book ('USS Monitor: A Historic Ship Completes Its Final Voyage'] in her lap, trying to follow my description of the sinking, which was based on archaeological evidence and long discussions with naval engineers, salvage experts and my colleagues at the Marine Forensics Committee of the Society of Naval Architects and Marine Engineers. From my perspective, Northrop Grumman and NOAA got it right."

Sixteen men, including four officers, perished when the Monitor went down. The remains of two sailors were found in the turret when it was recovered in 2002. The turret and hundreds of other Monitor artifacts have been or are being conserved at Mariners’ Museum and Park.

The vessel’s stern and part of the starboard side struck the sand as it landed upside down. The bow and forward section are still intact.

The new images shows the stern is gone, with some of that displaced by the recovery of the turret, anchor and other components from 1998-2002. (Image at left, Northrop Grumman)

The Picket asked Casserley for his thoughts on how the animation was done.

 “When the wreck was discovered in 1973, we observed damage at the stern and starboard side, as well as rudder missing from the site. From these observations and damage found to some of the aft bulkheads we recovered, we can theorize how the vessel sank -- which is reflected in the animation.”

Images on the website show a detached part of the ironclad’s armor belt and some wire rigging used during salvage operations. Navy divers had to remove a section of the belt and some hull plating during the recovery of the turret, which rested beneath the vessel.

The sonar imagery is so precise you can see an automobile tire or two that somehow came to be in the area.

Mariners’ Museum and Park -- which houses thousands of Monitor artifacts -- said the aim is to improve interpretation and perhaps protection of the wreck, which is slow deteriorating.

Those interested in 3D modeling can turn to the NOAA website and Sketchfab to see three reconstructions of USS Monitor produced by Northrop Grumman, a defense contractor. Viewers can use their mouse to see the vessel from different perspectives.

Built as a prototype for a brand new type of warship, Monitor was continually improved during its brief life afloat in 1862. These improvements included different deck layouts.

3D deck view of the Monitor as it appeared during the Battle of Hampton Roads (Northrop Grumman)

The first image shows the ironclad as it appeared for the March 8-9, 1862, Battle of Hampton Roads against the CSS Virginia (Merrimack). In July 1862, the Monitor got a modified pilot house at the bow and extended air intake vents and smoke boxes toward the stern.

The third model is an artist’s interpretation of work in November 1862 at the Washington Navy Yard. Repairs and further improvements were undertaken. A telescoping smokestack and taller air ventilation boxes were fitted, which improved efficiency, according to NOAA.

Saturday morning’s presentation also heralded the Monitor’s role as an artificial reef and thriving ecosystem. A Northrop Grumman “Wreck to Reef” visualization shows how the wreck hosts fish, invertebrates and plant life.

Kelly Swindle, a senior marine biologist with Stantec, said the team took environmental DNA sampling from the water around the wreck and identified several fish, including the lancer dragonet, largehead hairtail, pearly razorfish and the twospot flounder.

Cannon damage on USS Monitor after clash with CSS Virginia (Library of Congress)

Casserley told the audience people can learn so much new about the ironclad from the comfort of their armchair. “We can now bring Monitor to you virtually.”

“It's one thing to read a historical account and it's a whole other experience seeing it come to life before your eyes,” he told the Picket in the email.

The sonar images help the agency track changes over time “by showing the hull and armor belt integrity with hyper-accuracy. It will provide the sanctuary with a valuable baseline for future monitoring and inspire the next generation of marine scientists and archaeologists alike,” Casserley wrote in the email.

Broadwater said he was impressed by Northrop Grumman’s technology and the educational products developed in cooperation with the museum.

 “I only wish we'd had that technology back before we recovered the engine and turret. I tried hard to get an accurate 3D image of the Monitor before we disturbed the hull.”

Wow factor: Hi-res views of USS Monitor will be unveiled March 7 at Battle of Hampton Roads event. The aim is to promote education, protection in a new way

Monitor has been on the sea floor163 years (NOAA/GFOE); sonar vehicle used in 2025 (Tane Casserley/NOAA)

The public will have its first opportunity March 7 to see new “groundbreaking” sonar-produced images of the USS Monitor wreck and a 3D reconstruction of what the famous Union ironclad looked like before it sank during a storm off Cape Hatteras, N.C.

Monitor National Marine Sanctuary and Northrop Grumman officials will make the 10 a.m. presentation during the annual Battle of Hampton Roads event at the Mariners’ Museum and Park in Newport News, Va.

About 60 people will be able to attend the program at the museum’s Explorers Theater. Those unable to attend can register here to watch the presentation online.

A Northrop Grumman unmanned underwater vehicle created scans of the December 1862 wreck site during high-resolution mapping in September 2025. The vehicle is equipped with a micro synthetic aperture sonar (µSAS) system.

A Northrop Grumman vessel deployed the technology last September (Tane Casserley/NOAA)

The system penetrated low-visibility conditions to generate extraordinary imagery of the wreck and its surrounding debris field, including detailed views of hull remains and internal structure, according the museum.

Discovered in 1973 and designated as the nation's first national marine sanctuary in 1975, USS Monitor rests nearly 240 feet below the ocean's surface.

“Along with these scans, Northrop Grumman created several new visualizations of Monitor for us to help interpret its historic legacy and its role now as a thriving reef,” sanctuary research coordinator Tane Casserley told the Picket.

The museum is hosting the daylong event remembering the March 8-9, 1862, clash between the innovative Monitor and the Confederacy’s Virginia.

Cannon damage on USS Monitor after clash with Virginia (Library of Congress)

The venue -- which houses thousands of Monitor artifacts -- said the aim is to improve interpretation and perhaps protection of the wreck, which is slow deteriorating.

Officials have been finalizing speakers for the program and have declined to release any of the sonar images ahead of the unveiling. Among those joining in the presentation are NOAA, museum and Northrop Grumman officials and technical experts.

The day’s activities (see details here) are aimed at inspiring young visitors to explore engineering, science and cutting-edge technology.

"By unveiling this new technology alongside hands-on STEM activities, we’re showing the community that history and innovation go hand-in-hand,” said Will Hoffman, director of conservation and chief conservator at the Mariners’ Museum. “These experiences provide visitors a new window into the past, enabling people to engage with USS Monitor through a different lens, and potentially, drawing in new audiences of all ages to learn about the little ship that saved the nation.”

According to a sanctuary article, all data products from the project -- including 3D models, visualizations, and animations -- will be transferred to NOAA and made available for public use, “supporting transparency, education and long-term stewardship of the site.”

Casserley said images and more details on the project will be released March 7 at the sanctuary website.

National Civil War Naval Museum hopes to arrange and display armor from ironclad's fantail by the end of March. The complex piece -- damaged by an arson fire in 2020 -- was built to protect CSS Jackson's rudder, propellers

Fantail before arson fire, Brandon Gilland with armor, charred wood, explainer on design (Picket photos)

A fire set by Union cavalrymen in 1865 and a second lit by an arsonist in 2020 took away the dignity – and much of the wood – from a remarkable section of the Confederate ironclad CSS Jackson.

But the blazes could not erase the story of the fantail crafted for the vessel, whose remains are on display at the National Civil War Naval Museum in Columbus, Ga.

The arson fire dashed hopes of conserving the fantail, the precisely built curved rear deck that protected the vessel’s rudder and propellers. It sat for years, lying upside down, in a pole barn outside the museum. Officials had hoped to move the component inside and build a pie-shaped replica.

The arson changed all that.

Crew of the CSS Jackson (Muscogee) aboard vessel on Chattahoochee River (Wikipedia)

Museum officials moved to the idea of using the surviving armor and replacement wood for a recreation that would highlight the artifact’s complexity and contours. No dice. That option ultimately proved too costly and unfeasible.

“Each piece looked like it was almost cut to fit. There are all kinds of sizes and shapes,” museum director Brandon Gilland told the Picket. In other words, it would take big bucks and precise knowledge and skills to fashion new pieces.

Now there’s a new approach.

The fantail after it was removed from the Chattahoochee River in 1961 (NCWNM photo)

To mark its 25^th year in a large building situated on Victory Drive and near the Chattahoochee River -- where the Jackson was built -- the museum will shortly begin a less ambitious project to display the 30 or so pieces of fantail armor, said Gilland.

“That fantail has been nagging at me for a while,” he said.

Volunteers, using equipment to lift the 400-pound sections, will arrange them in a half-moon shape. Beneath the armor will be cedar or some other material.

The finished product will likely end up flat on the floor next to the Jackson’s stern, though Gilland would like for the fantail to be slightly elevated, if possible.

They can't use the original wood, because the 1865 and 2020 fires basically ruined them

The goal is to have the modest display ready for the March 21 RiverBlast, an annual event that includes cannon firings, living historians, food, family events and more.

Since the surviving armor was treated about five years ago, the sections have sat in rows along the Jackson. Bolts and other fasteners are in crates, awaiting new life. Charred wood lie on pallets, also near the stern

I held a bolt and a couple fasteners and asked Gilland whether they could be reused. Perhaps some of the bolts, he said. To demonstrate, he placed a bolt in a hole in one piece of iron armor (Picket photo, above).

That momentary connection seemingly brought the project to life.

Structure proved to be more complex than thought

CSS Jackson flag captured by 4th Division, U.S. Cavalry (The American Civil War Museum, Richmond, Va.)

Remains of the Jackson and the twin-screw wooden ship CSS Chattahoochee are the star exhibits of the museum. Both were lost in April 1865 at war’s end -- the Jackson set afire by Federal captors and the Chattahoochee scuttled by its own crew.

They were recovered from the Chattahoochee River in the early 1960s. Neither saw action.

The fantail was the half-moon shaped rear deck of the CSS Jackson, which was never fully operational. The section of armor and timber is a remarkable example of design and construction prowess. 

After the 2020 fire, the upside-down fantail was the first to receive conservation attention. Each beam was documented. Using a process called photogrammetry, the archaeologists took hundreds of images of each layer in order to better understand the structure. (Gilland says the section with green labels at right may be the least damaged from the 2020 fire; Picket photo)

Jeff Seymour, director of history and collections at the museum at the time of the arson blaze, wrote about the ironclad’s fantail:

“As each level emerged, we were able to see elements of this vessel that no one has seen since 1864. As each level surfaced, several questions about how the Jackson was constructed were answered, but many more questions developed. Simply, this structure is much more complex than we thought heading into this project."

Seymour called the fantail “a very unique piece of naval architecture” that’s believed to be the only Civil War example out of the water. Because the rear deck was curved, builders had to customize the length of the armor and timber. (Seymour now works at the Erie Maritime Museum in Pennsylvania.

When I saw the fantail in 2019, before the arson fire, the artifact and the Chattahoochee’s engine components were in the pole barn outside the museum, exposed to the elements and slowly deteriorating.

I marveled at the fantail, which was charred in places from the 1865 fire. But the wood was in place and you could see how it was fashioned from layers of longleaf pine and other material.

Remnants of the pole barn after the 2020 fire; the roof is no longer there  (Columbus Fire and EMS)

The June 2020 arson, which has not been solved, charred the fantail’s timbers to their core, also destroying the piece’s shape. The Chattahoochee’s wrought iron and cast iron engines, the iron plates from the Jackson’s armor and the iron plating to the fantail survived, though they were exposed to the thermal heat.

To this day, dozens of pieces of armor belonging to one side of the Jackson are in the fenced area, poking through weeds and burned wood. Why not move them inside and conserve them? There’s no money to do that currently, said Gilland.

Video shows how the fantail was put together

The naval museum has the benefit of post-fire conservation work done several years ago by Terra Mare Conservation to serve as a guide.

The company treated and tagged the armor, digitally mapped the fantail and produced a fascinating video showing how it was designed and put together. Visitors can stand near one of the Jackson’s propeller and watch the looped production

Gilland expects the work to cost about $2,000, compared to at least $25,000 for a full recreation. Museum officials several years ago cited a much higher figure to do a full-scale recreation.

Fund-raising for the fantail work was part of a larger effort, most of which has been completed, including a few new exhibits, said Gilland.

Robert Holcombe, a naval historian and former director of the museum, previously told me besides the CSS Georgia in Savannah, the fantail may have been the only piece of wood from a Confederate ironclad with iron plating still attached.

Homemade behemoth had an inglorious end

Museum visitors can gaze at the hull of the flat-bottom ironclad from a viewing platform and on the floor (Picket photo below).

 A section is missing, but you get a good views of the vessel’s enormity – it was about 222 long and 57 feet across. Above the CSS Jackson’s hull is ghosting framework intended to show how the warship appeared above the water line. The rudder is missing.

The Jackson (originally named the Muscogee) was designed to protect Columbus – a critically important industrial center for the Confederacy -- from Union navy marauders and blockaders. Construction on the Jackson began in early 1863. It was built entirely in Columbus.

The Jackson’s casemate had a 35-degree slope and featured nearly two feet of wood and two layers of plating, mostly manufactured at the Scofield and Markham mill in Atlanta.

The vessel, armed with six Brooke rifles (two of which rest outside the museum), was finally launched -- after earlier unsuccessful attempts -- on Dec. 22, 1864, to local fanfare. 

Fantail bolts and fasteners were cleaned and place in boxes (Picket photo)

The two engines and four boilers – manufactured in Columbus – were not operational when the city fell, and there’s a question about how well they would have performed, anyway. At best, the Jackson would have done about 5 knots.

The ship still needed armor and was unfinished when the Federal cavalry arrived on April 16, 1865.

“The following day the nearly completed ship was set ablaze and cut loose by her captors,” a panel at the naval museum says. “After drifting downstream some 30 miles, the Jackson ground on a sandbar and burned to the waterline.”

This view shows differing lengths and widths for armor (Picket photo)

Brandon Gilland points to area to where armor will be displayed (Picket photo)