 They were complete by 1852 but were heavily criticised by James Fergusson (who was later to become the Treasury Representative on the 1860 Royal Commission into the defences of the United Kingdom) in his papers The Peril of Portsmouth and Portsmouth Protected.According to an armament list of 1860 Browndown Battery East had positions for three 68pr of 112 cwt.and seven 8-inch smooth bore guns of 65 cwt.