Five ships 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...

 have been called HMS Inflexible.
was an 18-gun sloop

Sloop-of-war

In the 18th and most of the 19th centuries, a sloop-of-war was a warship with a single gun deck that carried up to eighteen guns. As the rating system covered all vessels with 20 guns and above, this meant that the term sloop-of-war actually encompassed all the unrated combat vessels including the...

 launched in 1776. Her fate is unknown. was a 64-gun third-rate

Third-rate

In the British Royal Navy, a third rate was a ship of the line which from the 1720s mounted between 64 and 80 guns, typically built with two gun decks . Years of experience proved that the third rate ships embodied the best compromise between sailing ability , firepower, and cost...

 Inflexible-class ship of the line

Inflexible class ship of the line

The Inflexible-class ships of the line were a class of four 64-gun third rates, designed for the Royal Navy by Sir Thomas Slade. The lines of this class were based heavily on Slade's earlier 74-gun .-Ships:...

 launched in 1780. She was used as a storeship from 1793, a troopship

Troopship

A troopship is a ship used to carry soldiers, either in peacetime or wartime...

 from 1809 and was broken up in 1820. was a wooden screw sloop

Screw sloop

A screw sloop is a propeller-driven sloop-of-war. In the 19th century, during the introduction of the steam engine, ships driven by propellers were differentiated from those driven by paddle-wheels by referring to the ship's screws...

 launched in 1845 and sold in 1864. was an ironclad

Ironclad warship

An ironclad was a steam-propelled warship in the early part of the second half of the 19th century, protected by iron or steel armor plates. The ironclad was developed as a result of the vulnerability of wooden warships to explosive or incendiary shells. The first ironclad battleship, La Gloire,...

 battleship

Battleship

A battleship is a large armored warship with a main battery consisting of heavy caliber guns. Battleships were larger, better armed and armored than cruisers and destroyers. As the largest armed ships in a fleet, battleships were used to attain command of the sea and represented the apex of a...

 launched in 1876 and sold in 1903. was an Invincible-class

Invincible class battlecruiser

The three Invincible class battlecruisers were built for the Royal Navy and entered service in 1908 as the world's first battlecruisers. They were the brainchild of Admiral Sir John Fisher, the man who had sponsored the construction of the world's first "all big gun" warship,...

 battlecruiser

Battlecruiser

Battlecruisers were large capital ships built in the first half of the 20th century. They were developed in the first decade of the century as the successor to the armoured cruiser, but their evolution was more closely linked to that of the dreadnought battleship...

launched in 1907 and sold for scrapping in 1921.