I don't think the French frigate ACHERON is really an historical vessel. Rather, it is from the novel "Master and Command", from the Aubrey-Maturin series by the marine novelist, Patrick O'Brian. The novel story was later made into a film directed by Peter Weir and starring Russel Crow as Jack Aubrey, captain of the British frigate, SURPRISE. The film was released in 2003.
The film's story takes place in 1805, when SURPRISE engages the French privateer, ACHERON and is damaged by the privateer. After repairs, Captain Aubrey learns that ACHERON is in the Eastern Pacific harassing the British whaling fleet. Sailing around Cape Horn, the SURPRISE arrives at the Galapagos Islands, and through a surprise chance of fate, learns that ACHERON is anchored on the opposite side of the island. Using deception, Captain Aubrey disguises the SURPRISE as a British whaler, sneaks up to ACHERON and in a furious battle defeats ACHERON, taking the captured vessel to Valparaiso, Chile.
The novelist Patrick O"Brian wrote of the engagement of the SURPRISE vs ACHERON in the Pacific, using the historical encounter of the 32 gun frigate, U.S.S. ESSEX and her defeat by the British frigate, H.M.S. PHOEBE and sloop-of-war, H.M.S. CHERUB in a bloody battle outside of Valpariso harbor on March 27, 1814. The U.S.S. ESSEX had decimated the British whaling fleet in the Pacific. PHOEBE and CHERUB were ordered to halt this menace.
Acheron is the name of a river in N.W. Greece that flows into the Ionian Sea. In ancient Greek methology, Acheron is one of the five rivers that flows through the realm of Hades.
Montani semper liberi ! Happy modeling to all and every one of you.
Crackers