The 1651 Programme of the Council of State of the Commonwealth of England provided for the building of a group of ten new vessels, with the estimates presented to Parliament on 29 May 1651 providing for "one ship and nine frigates".
Design and specifications
The construction of the vessels was assigned to Portsmouth Dockyard with one vessel contracted to Peter Pett I of Ratcliffe. The dimensional data was so varied that it will be listed on the individual vessels along with their gun armament composition. ==Ships of the 1651 Programme Group==