HMS M30 was a 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...

  M29 class

M29 class monitor

The M29-class comprised five monitors of the Royal Navy, all built and launched during 1915.The ships of this class were ordered in March, 1915, as part of the Emergency War Programme of ship construction...

  monitor

Monitor (warship)

A monitor was a class of relatively small warship which was neither fast nor strongly armoured but carried disproportionately large guns. They were used by some navies from the 1860s until the end of World War II, and saw their final use by the United States Navy during the Vietnam War.The monitors...

 of the First World War.

The availability of ten 6 inch Mk XII guns from the Queen Elizabeth class

Queen Elizabeth class battleship

The Queen Elizabeth-class battleships were a class of five super-dreadnoughts of the Royal Navy. The lead ship was named after Elizabeth I of England...

 battleships in 1915 prompted the Admiralty

Admiralty

The Admiralty was formerly the authority in the Kingdom of England, and later in the United Kingdom, responsible for the command of the Royal Navy...

 to order five scaled down versions of the M15 class monitors

M15 class monitor

The M15-class comprised fourteen monitors of the Royal Navy, all built and launched during 1915.- Design :The ships of this class were ordered in March, 1915, as part of the Emergency War Programme of ship construction...

, which had been designed to utilise 9.2 inch guns. HMS M30 and her sisters were ordered from Harland & Wolff

Harland and Wolff

Harland and Wolff Heavy Industries is a Northern Irish heavy industrial company, specialising in shipbuilding and offshore construction, located in Belfast, Northern Ireland....

, Belfast

Belfast

Belfast is the capital of and largest city in Northern Ireland. By population, it is the 14th biggest city in the United Kingdom and second biggest on the island of Ireland . It is the seat of the devolved government and legislative Northern Ireland Assembly...

 in March 1915. Launched on 23 June 1915, she was completed in July 1915.

Upon completion, HMS M30 was sent to the Mediterranean. Whilst enforcing the Allied blockade in the Gulf of Smyrna, HMS M30 came under fire from Turkish shore batteries, and was sunk on 14 May 1916.