Fort Blockhouse

From Wikipedia, the free encyclopedia

Fort Blockhouse is a fort in Gosport and the final version of a complicated site. It is surrounded on 3 sides by the sea and provides the best view of the harbour entrance. It is unique in two respects - firstly, it was built over a number of centuries. Secondly, it is thought to be the oldest fortified position in the United Kingdom that is still in active military use. [1]

[edit] History of the Fort

Following the burning of Portsmouth during the Hundred Years War, money was set aside in 1417 to provide protection for the harbour. A blockhouse was first built on the Gosport side of Portsmouth harbour in 1431 after authorisation by Henry VI. The defences were upgraded in 1495 and was armed with 5 guns.

The blockhouse was replaced in 1539 by an eight-gun battery under the orders of Henry VIII after his divorce from Catherine of Aragon. The first firing of the guns is believed to have occurred during the Civil War. The guns were aimed at Southsea Castle after Parliamentary troops had captured it. The aim was not good, however, and the cannon ball landed in St. Thomas' Church in Old Portsmouth.

The original fort is believed to have disappeared by 1667 when Bernard de Gomme installed a 21 gun battery for Charles II. But in 1708 the fort was rebuilt on an irregular trace. Upgrading was done at the turn of the 19th century, and again in 1845, from which time most remains date. The site was considered obsolete by the 1859 Royal Commission on the Defence of the United Kingdom, and it was turned over to the Royal Navy in 1905, where as HMS Dolphin shore-establishment, it was the home of the submarine service for years. In 1992, it was announced that the submarine fleet would be leaving HMS Dolphin and moving west to the HMNB Devonport. The last submarine left HMS Dolphin in 1994 and the submarine school remained till 1999. HMS Dolphin was formally transferred in 1998 and became known as Fort Blockhouse.

The site is open for tours in September as part of the Heritage Open Days scheme. With the closure of Royal Hospital Haslar to serving Service Personnel, Fort Blockhouse is now known as Support Unit Fort Blockhouse and staff support many lodger units.