HMS Pendennis was a 70-gun third-rate ship of the line constructed for the Kingdom of England, built at Chatham Dockyard between 1677 and 1679 under the supervision of Master Shipwright Phineas Pett. Launched in 1679, she measured approximately 150 feet 10 inches (45.97 meters) in length on her gundeck, with a keel length of 121 feet 9 inches (37.11 meters) used for tonnage calculations. Her breadth was 40 feet 3.5 inches (12.28 meters), and her depth of hold was 17 feet (5.18 meters). The builder’s measure tonnage was around 1,051 tons. Her draught was 17 feet (5.18 meters), allowing her to operate effectively in various maritime conditions. Her initial armament was consistent with the 1677 Establishment, comprising 72 guns, including twenty-six demi-cannons (54 cwt, 9.5 ft) on the lower deck, twenty-four 12-pounder guns (32 cwt, 9 ft) on the upper deck, ten sakers (16 cwt, 7 ft) on the quarterdeck, four sakers on the forecastle, and four 3-pounder guns (5 cwt, 5 ft) on the poop deck or roundhouse. By 1688, her armament was adjusted to 70 guns in accordance with the 1685 Establishment. Her complement was initially around 460 crew members, with later estimates ranging from 380 to 300 personnel. Commissioned on 25 September 1688 under Captain Sir William Booth, HMS Pendennis participated in significant naval activities, including sailing with Dartmouth’s fleet in October 1688 and fighting in the Battle of Bantry Bay on 1 May 1689. Notably, in March 1689, Captain Booth, a secret Jacobite, attempted to persuade ship lieutenants to defect to France but fled when suspicion arose. The ship later came under the command of Captain George Churchill in 1690. Tragically, HMS Pendennis was wrecked on the Kentish Knock on 26 October 1689. Her service history reflects her role during the late 17th century conflicts, notably her participation in the War of English Succession and the Battle of Bantry Bay, marking her as a significant vessel of her period.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.