The Hb class was a class of six 40-gun frigates of the French Navy, designed in 1781 by Jacques-Nol San. Captured by the British Navy on 4 September 1782, the ship became the model for the British Leda class frigates. These ships were armed with 26 long 18-pounder guns (later increased to 28), 12 long 8-pounder guns and 4 36-pounder obusiers, and had a designated crew of 300. Carmagnole was launched May, 22nd 1793 at Brest, and she finally wrecked at Vlissingen on November, 9th 1800. On October,25th 1793 while sailing on the Atlantic Ocean close to Gascony, under the command of Zacharie Allemand Carmagnole captured the British ship HMS Thames, that had been attacked and damaged by other French ships the previous day. The HMS Thames was later brought into French service as Tamise.