The Victorian Fortification of Flat Holm.

Queen Victoria and Prince Albert visited Europe in the 1850's. On their return the Queen, being concerned about the strength of the French Navy and the possibility of attack on the South Coast of England, asked Lord Palmerston, who was the Prime Minister at that time to set up a Royal Commission to investigate the matter. Millions were spent against the possible attack from the new 'Iron Clad' French warships. It later became known as "Palmerston's Folly", since the invasion never happened.

Fortresses were recommended for the South Coast of England and Flat Holm became part of the strategic coastal defence system of the Bristol Channel. Steep Holm, Brean Down and Lavernock were also included in this system. Each fortress in the Bristol Channel used a different armament system.

It was during 1865 to 1869 that the construction of the fortress took place on the island. The barracks, dated 'VR 1869' over the main entrance, provided the accommodation for about fifty men. However, only the master gunner and five gunners of the Royal Artillery Coast Brigade were ever stationed there.

Nine rifled muzzle-loading guns, made at the Royal Gun Foundry, Woolwich made up the armament. They were mounted in four separate batteries all in Moncrieff pits. The pits were constructed of limestone blocks and bricks, being 18 feet in diameter and 10 feet deep. Underground passages and magazines link a few. The rifled muzzle-loading guns were heavy for land service, being constructed of wrought iron sections. They consisted of a rifle tube and cascabel. The overall length of the gun is 142.1 inches. They used a 115-lb Palliser shell and were mounted on the Moncrieff disappearing carriage.

Surrounding the Lighthouse battery and barracks a ditch and bank were constructed for fear of attack from any landing parties.

In 1875 a photographer visited the island to take photographs of the lighthouse. To add interest to his photograph he asked a gunner to raise the gun, which had been in the down position. This meant he had a photograph of the lighthouse, together with the gun raised above the Moncrieff pit. When this picture came to the attention of the military authorities, the gunner was reprimanded and the photograph immediately suppressed.
The guns were never fired in anger. The barracks were used for the military during the Second World War Fortification. That, however, is another story.....

Jane Baltzars