"Pomone" and "Shannon", the second and third ship of the class respectively, was built using Josiah Brindley's patent method of construction which dispensed with 'lodging' and 'hanging knees', oak elements that had to be grown to shape. Oak suitable for shipbuilding had become increasingly difficult to obtain through the long period of warfare. Bindley's fastenings proved to be weak. Captain Philip Broke of "Shannon" claimed her topsides were weak and "worked like a basket." "Shannon" was actually in such poor condition by 1813 that she almost missed her engagement with the .