The USS Constellation expert was the Dean of American Maritime History Howard I Chapelle.
Sometime after World War II a group of civic minded citizens in Maryland obtained Constellation from the US Navy with the usual idea that she would become a tourist attraction. Somewhere I have a copper coin supposedly cast from one of her copper fastenings, sold as a fundraising scheme.
Realizing that she had been modified over her lifetime, they tried to restore her to her 1798 appearance. Raining on their parade was Howard I Chapelle, a Naval Architect specializing in historic ships. Chapelle argued that the ship was an entirely different vessel than the one built in the late 1700’s. Her dimensions and hull lines were different plus she had a round stern. The original Constellation had a square stern. Chapelle argued that the navy used repair funds allocated by Congress to build an entirely new vessel.
Chapelle’s arguments seemed airtight to anyone who could could compare Constellation original drawings with the vessel sitting in Baltimore. Never less, for the next 30 or so years, a furious debate raged; Chapelle vs The Baltimore promoters. Chapelle’s scholarly arguments and dry wit on one side and increasingly silly arguments of the promoters on the other. Their final argument was the idea that since (maybe) some timber from the original ship had been used in the new one, the new vessel was still the original Constellation. Finally in the late 1980’s the Baltimore promoters gave up and she was taken in hand by a new group who restored her to her correct 1853 appearance. She can be seen in Baltimore harbor today.
The sorry saga is explained in detail in two books: Chapelle’s The Constellation Question and Fouled

s quoted above. Fouled

s was originally published by experts at the Navy’s David Taylor Model Basin about 20 years after Chapelle’s death. It includes the startling evidence that President Roosevelt (FDR) or his people faked documents regarding the Baltimore ship’s Provenance many rears before the Navy gave her to the Baltimore promoters. Those interested in Constellation should also look up Jerry Todd’s build log here on SOS. This Is an excellent model of her just prior to the Civil War.
So, what does all of this have to do with your model kit? Unfortunately the kit builds the “frigate” mouldering in Baltimore Harbor prior to her rescue and correct restoration to an 1853 Sloop-of-War. In other words, it builds a make believe vessel with both 1853 and 1798 features. Life is too short to waste time building this kit. Google Sunk Costs!
Roger