HMS Bulldog was one of four Bulldog class

Bulldog class survey vessel

The Bulldog class was a four ship class of survey vessel in service with the Royal Navy from the late 1960s until the start of the 21st century. Initially designed with service overseas in mind, they spent most of their careers off the British coast. A fifth ship was subsequently built to a...

 hydrographic

Hydrography

Hydrography is the measurement of the depths, the tides and currents of a body of water and establishment of the sea, river or lake bed topography and morphology. Normally and historically for the purpose of charting a body of water for the safe navigation of shipping...

 survey 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...

. She was built by the yacht

Yacht

A yacht is a recreational boat or ship. The term originated from the Dutch Jacht meaning "hunt". It was originally defined as a light fast sailing vessel used by the Dutch navy to pursue pirates and other transgressors around and into the shallow waters of the Low Countries...

 builder Brooke Marine

Brooke Marine

Brooke Marine was a Lowestoft-based shipbuilding firm. The company constructed boats and small ships for civilian and commercial use, as well as minor warships for the Royal Navy, Royal Navy of Oman, Royal Australian Navy, Kenya Navy and United States Navy.The company was founded in 1874 as a...

 and launched in 1968.

Displacing just 1088 tons and managing a top speed of just 15 knots, the ship was known for both her attractive lines and excellent sea keeping. Her pennant number was originally A317 but this was changed in 1998 along with that of other survey ships to an H-prefix (for Hydrographic — S for survey already being in use for submarine

Submarine

A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which has more limited underwater capability...

s) to emphasise that they were survey ships rather than naval auxiliaries. She was finally decommissioned on 26 July 2001. She was sold in August 2001 for conversion into a luxury yacht. She was damaged in a fire in May 2004 whilst at Nelson, New Zealand

Nelson, New Zealand

Nelson is a city on the eastern shores of Tasman Bay, and is the economic and cultural centre of the Nelson-Tasman region. Established in 1841, it is the second oldest settled city in New Zealand and the oldest in the South Island....

and the conversion was not completed.