Dave:
By accurate, do you mean does it conform with Humphreys’ original specs? The answer is yes.
As I said, the planking thicknesses were taken from Humphreys’ original specs for the 44 gun frigates. He wrote those specs in the mid 1790s, give or take a year. Whether or not they stayed precisely with those specs at some later date in the ship’s career is anyone’s guess.
Russ