HMS Assistance was a 40-gun fourth-rate

Fourth-rate

In the British Royal Navy, a fourth rate was, during the first half of the 18th century, a ship of the line mounting from 46 up to 60 guns. While the number of guns stayed subsequently in the same range up until 1817, after 1756 the ships of 50 guns and below were considered too weak to stand in...

 frigate 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...

, originally built for the navy of the Commonwealth of England

Commonwealth of England

The Commonwealth of England was the republic which ruled first England, and then Ireland and Scotland from 1649 to 1660. Between 1653–1659 it was known as the Commonwealth of England, Scotland and Ireland...

 at Deptford

Deptford

Deptford is a district of south London, England, located on the south bank of the River Thames. It is named after a ford of the River Ravensbourne, and from the mid 16th century to the late 19th was home to Deptford Dockyard, the first of the Royal Navy Dockyards.Deptford and the docks are...

, and launched in 1650. By 1677 her armament had been increased to 48 guns.

In 1687 Assistance was rebuilt at Deptford as a 48-gun fourth-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...

. Life aboard her when cruising in the Mediterranean in 1675-6 is described in the diary of Henry Teonge

Henry Teonge

Henry Teonge was an English cleric and Royal Navy chaplain who kept informative diaries of voyages he made in 1675–76 and 1678–79.-Life:...

. She was rebuilt for a second time at Deptford in 1699, relaunching as a fourth rate of between 46 and 54 guns. In 1702 she was attached to the squadron of Commodore John Leake

John Leake

Sir John Leake was an English Admiral in the Royal Navy and a politician who sat in the House of Commons from 1708 to 1715.Leake was born at Rotherhithe, the second son of Richard Leake, Master Gunner of England....

 for service to Newfoundland at the outbreak of the War of the Spanish Succession

War of the Spanish Succession

The War of the Spanish Succession was fought among several European powers, including a divided Spain, over the possible unification of the Kingdoms of Spain and France under one Bourbon monarch. As France and Spain were among the most powerful states of Europe, such a unification would have...

. Leake sent her to destroy the fortifications

Raid on Newfoundland

The Newfoundland expedition was a naval raiding expedition led by English Captain John Leake between August and October 1702 that targeted French colonial settlements on the North Atlantic island of Newfoundland and its satellite Saint Pierre...

 of the isle of Saint Pierre.

Her third rebuild was carried out at Limehouse

Limehouse

Limehouse is a place in the London Borough of Tower Hamlets. It is on the northern bank of the River Thames opposite Rotherhithe and between Ratcliff to the west and Millwall to the east....

, from where she was relaunched on 16 February 1713 as a 50-gun fourth rate to the 1706 Establishment

1706 Establishment

The 1706 Establishment was the first formal establishment of dimensions for ships built for the Royal Navy. Two previous sets of dimensions had been established, though only for particular shipbuilding programmes; the 1706 Establishment was intended to be permanent.-Origins:Dimensions for ships had...

. On 21 March 1720 she was ordered to be taken to pieces at Woolwich

Woolwich Dockyard

Woolwich Dockyard was an English naval dockyard founded by King Henry VIII in 1512 to build his flagship Henri Grâce à Dieu , the largest ship of its day....

 for what was to be her final rebuild. She relaunched as a 50-gun fourth rate to the 1719 Establishment

1719 Establishment

The 1719 Establishment was the first formal 'Establishment' laid down to govern the construction of all ships built or rebuilt down to those of 20 carriage guns, whether in the Royal Dockyards or by commercial contractors...

on 25 November 1725.

Assistance was sunk as a breakwater in 1745.