USS Constellation - Sloop of War of the United States Navy
The Sloop of War Constellation is preserved in Baltimore Harbor. Constellation is the last sailing ship designed for the US Navy (1854), and it is the last intact ship which saw active cruising service with the United States Navy during the American Civil War. (The frigate USS Constitution served only in training roles during the war.)
This website ordinarily tells the story of long vanished ships through their preserved cannons. Constellation still exists, though all the cannons aboard her are replicas and reproductions.
As a Sloop of War, she carried all of her main armament on a single gun deck. Her top most deck, the spar deck, was originally unarmed - though during the Civil War she carried two smaller Parrott Rifles on the spar deck: a 20-Pounder and a 30-Pounder. As displayed, she carries a reproduction 20-Pounder Parrott which is used in firing demonstrations.
Her main battery was carried aboard the gun deck: sixteen 8-Inch Shell Guns of 63 Hundredweight and four 32-Pounders of 57-Hundredweight. All of the 32-Pounders and 8-Inch guns aboard now are non-firing replicas.
For those interested in the United States Navy of the American Civil War, Constellation is a fascinating ship to visit. Though she lacks steam machinery, she gives some idea of what the steam frigates, sloops, and gunboats of the US Navy during the war may have looked like on the inside. She also is interesting to compare to the 1797 frigate USS Constitution. Aside from her armament, the two sailing ships are quite similar in internal arrangements.
I highly recommend watching the tour of USS Constellation presented by the YouTube Channel Destinations of History: America's Last Sailing Warship: USS Constellation from US Civil War
When used with a lanyard, the hammer falls on the primer. The continued pull on the lanyard then pulls the hammer back and clear from the vent.