HMS Valiant was a 74-gun third rate ship of the line

Ship of the line

A ship of the line was a type of naval warship constructed from the 17th through the mid-19th century to take part in the naval tactic known as the line of battle, in which two columns of opposing warships would manoeuvre to bring the greatest weight of broadside guns to bear...

 of the Royal Navy

Royal Navy

The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

, modelled on the captured French ship Invincible

HMS Invincible (1747)

The Invincible was a 74-gun French ship of the line, later a third-rate of the Royal Navy.During the early part of the 18th century British ship designers had made few significant advances in design, whereas French shipbuilding benefited from a remarkably creative period. At the time of the capture...

 and launched on 10 August 1759 at Chatham Dockyard

Chatham Dockyard

Chatham Dockyard, located on the River Medway and of which two-thirds is in Gillingham and one third in Chatham, Kent, England, came into existence at the time when, following the Reformation, relations with the Catholic countries of Europe had worsened, leading to a requirement for additional...

. Her construction, launch and fitting-out are the theme of the 'Wooden Walls' visitor experience at Chatham Historic Dockyard

Chatham Historic Dockyard

Chatham Historic Dockyard is a maritime museum on part of the site of the former royal/naval dockyard at Chatham in Kent, England.Chatham Dockyard covered 400 acres and was one of the Royal Navy's main facilities for several hundred years until it was closed in 1984. After closure the dockyard was...

. She served under Augustus Keppel during the Seven Years' War

Seven Years' War

The Seven Years' War was a global military war between 1756 and 1763, involving most of the great powers of the time and affecting Europe, North America, Central America, the West African coast, India, and the Philippines...

. In 1799 she was placed on harbour service, and was eventually broken up in 1826.