HMS Sutlej was a Constance-class 50-gun fourth-rate frigate of the Royal Navy, representing the largest sailing frigates built for the Navy during its era. Designed by Sir William Symonds in 1843, the class was notable for its substantial size and firepower. Sutlej was ordered from Pembroke Dockyard on 26 March 1845, laid down in August 1847, and launched on 17 April 1855. Initially, she was laid up in ordinary at Portsmouth before undergoing a significant conversion to a screw frigate between 1859 and 1860, which involved fitting her with a screw propulsion system. She was undocked on 26 March 1860, marking her transition into active service. The vessel was named to commemorate the British victory at the Battle of Sobraon, where East India Company forces defeated the Sikh Khalsa Army along the banks of the Sutlej River. Upon commissioning, HMS Sutlej was commanded by Captain Matthew Connolly and served notably on the Pacific Station, based at Esquimalt in 1864. During this deployment, she served as the flagship of Rear-Admiral John Kingcome. In 1867, under Captain Trevenen Penrose Coode, she continued her role as flagship for Rear-Admiral Joseph Denman. Her service was marked by a brief and active career before she returned to Britain to be paid off. HMS Sutlej's maritime history includes a minor diplomatic incident in October 1863 when she entered San Francisco harbor during a windless day. Her indiscernible ensign and failure to halt prompted a shot across her bow by the federal fort at Alcatraz, which was resolved when she responded with a 21-gun salute. In 1864, she participated in a raid on nine Ahousaht villages, resulting in casualties and prisoners, including the wife and child of Chief Cap-chah. The following year, her visit to San Francisco was marred by crew desertions, with one-third of her crew deserting during that period. HMS Sutlej was decommissioned and broken up at Portsmouth in 1869, ending her brief but notable service history.

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