HMS Castor was a 36-gun fifth rate frigate

Frigate

A frigate is any of several types of warship, the term having been used for ships of various sizes and roles over the last few centuries.In the 17th century, the term was used for any warship built for speed and maneuverability, the description often used being "frigate-built"...

 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...

. .

Castor was built 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...

 and launched on 2 May 1832. She was one of a two ship class of frigates, built to an 1828 design by Sir Robert Seppings, and derived from the earlier Stag class. The Castor class had a further 13 inches (33 cm) of beam to mount the heavier ordnance. Castor cost a total of £38,292, to be fitted for sea.

Her first captain was Lord John Hay, and by September 1832 Castor was at Lisbon

Lisbon

Lisbon is the capital city and largest city of Portugal with a population of 545,245 within its administrative limits on a land area of . The urban area of Lisbon extends beyond the administrative city limits with a population of 3 million on an area of , making it the 9th most populous urban...

. She spent a period of time in the Mediterranean, before being decommissioned at Chatham

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...

 in 1842. She spent periods in the East Indies and the Cape of Good Hope

Cape of Good Hope

The Cape of Good Hope is a rocky headland on the Atlantic coast of the Cape Peninsula, South Africa.There is a misconception that the Cape of Good Hope is the southern tip of Africa, because it was once believed to be the dividing point between the Atlantic and Indian Oceans. In fact, the...

, with further periods laid up at Chatham. She came to the assistance of HM Troopship Birkenhead

HMS Birkenhead (1845)

HMS Birkenhead, also referred to as HM Troopship Birkenhead or steam frigate Birkenhead, was one of the first iron-hulled ships built for the Royal Navy...

, when the Birkenhead was wrecked on 26 February 1852.

She was used as a training ship from January 1860, and was a Royal Naval Reserve

Royal Naval Reserve

The Royal Naval Reserve is the volunteer reserve force of the Royal Navy in the United Kingdom. The present Royal Naval Reserve was formed in 1958 by merging the original Royal Naval Reserve and the Royal Naval Volunteer Reserve , a reserve of civilian volunteers founded in 1903...

 training ship at North Shields

North Shields

North Shields is a town on the north bank of the River Tyne, in the metropolitan borough of North Tyneside, in North East England...

 from April 1862, having been reduced to 22 guns. She was sold at Sheerness

Sheerness

Sheerness is a town located beside the mouth of the River Medway on the northwest corner of the Isle of Sheppey in north Kent, England. With a population of 12,000 it is the largest town on the island....

 on 25 August 1902 for breaking up at Castle & Sons breakers yard in Woolwich

Woolwich

Woolwich is a district in south London, England, located in the London Borough of Greenwich. The area is identified in the London Plan as one of 35 major centres in Greater London.Woolwich formed part of Kent until 1889 when the County of London was created...

.