[smokingfrog]

Some historians say that the submarine showed a mission-accomplished lantern signal from its hatch to troops back on shore before it disappeared.

Soon after the signal had been fired, the sub sank about 4 miles off Charleston.

[Robe]

The article is full BS.... They note that the sub surfaced to signal the shore lookouts, The article states,"Soon after the signal had been FIRED, the sub sank about 4 miles off Charleston.". Nothing was "FIRED" it surfaced opened the forward hatch and showed a "BLUE LANTERN". The lantern was found directly under the forward hatch, it''s on display at the lab. These "Hull Plates" were indeed removable but as noted they were designed to keep the sub upright,if removed the sub would have surfaced but it would wallow and ride on it's sides or top all not allowing the hatches opened without sinking the submarine. It had forward and stern ballast tanks like a modern submarine which were flooded or pumped out to surface or dive the vessel. How do I know all this? Because I was on the volunteer conservation team

[DiogenesLamp]

Some historians say that the submarine showed a mission-accomplished lantern signal from its hatch to troops back on shore before it disappeared.

I've read everything about the Hunley that I could find when they first raised it, and I recall reading that. I now no longer believe that is true. Someone perhaps imagined seeing it, because what we now know to be the truth makes that claimed sighting an impossibility.