| Plymouth Sound | |
|---|---|
 Image of the Breakwater and the Mewstone | |
  Plymouth Sound | |
| Coordinates | 50°21′34.8″N4°8′34.8″W / 50.359667°N 4.143000°W |
| Type | Bay |
| Primary inflows | Hamoaze |
| River sources | |
| Primary outflows | English Channel |
| Max. length | 6 kilometres (3.7 mi) |
| Max. width | 6 kilometres (3.7 mi) |
Plymouth Sound, or locally just The Sound, is a deep inlet or sound in the English Channel near Plymouth in England.
Its southwest and southeast corners are Penlee Point in Cornwall and Wembury Point in Devon, a distance of about 3 nautical miles (6 km). Its northern limit is Plymouth Hoe giving a north–south distance of nearly 3 nautical miles (6 km).
The Sound has three water entrances. The marine entrance is from the English Channel to the south, with a deep-water channel to the west of the Plymouth Breakwater. There are two freshwater inlets: one, from the northwest, is from the River Tamar via the Hamoaze and Devonport Dockyard, the largest naval dockyard in western Europe. The other, at northeast, is from the River Plym disgorging into its narrow estuary, Cattewater harbour between Mount Batten and the Royal Citadel.
In the centre of the Sound, midway between Bovisand Bay and Cawsand Bay, is Plymouth Breakwater, which creates a harbour protecting anchored ships from the frequent south-western storms. The breakwater is around 1,700 yards (1,600 m) long, stands in around 11 metres / 36 feet of water and was built by John Rennie and Joseph Whidbey starting in 1812. The breakwater has a 23-metre-tall (75 ft) lighthouse on its western end and a 9-metre-tall (30 ft) beacon with a spherical cage on top at the eastern end. It is said that the cage is a lifesaving device designed to keep wrecked sailors from drowning in the huge waves of a storm on the low-lying breakwater.
Drake's Island is 400 metres long and around 100 metres wide and situated at the north of the Sound. It was fortified to defend Drake's Channel, the only deep-water route to Devonport. The Bridge is a shallow reef that links Drake's Island and the Cornish mainland. At low water the depth of the Bridge can be less than one metre but at high water it can rise to 5 metres. In World War I this natural barrier was supplemented by other obstructions to prevent submarines and small ships attacking the naval base.
In addition to ships of the Royal Navy, large commercial vessels, including ferries to France and Spain use the Sound from Millbay Docks. Fishing vessels use it from Sutton Harbour beside the old town of Plymouth, called the Barbican. There are marinas at Sutton Harbour, Mount Wise in the Hamoaze and at Turnchapel. Waterborne traffic in the Sound is controlled by the King’s Harbour Master for Plymouth. [1] [2]
Mount Batten, a former Royal Air Force flying boat and search and rescue base, is located at the northeast corner of the Sound. T. E. Lawrence was stationed here as Aircraftman Shaw.
Over the years, the Sound has been defended by Drake's Island, Picklecombe Fort, Cawsand Fort, the Breakwater Fort, Fort Bovisand, Staddon Fort and Stamford Fort.
A harbour and reservoir were built at Bovisand before the fort existed to supply men-o-war anchored in the Sound with fresh water. Joseph Whidbey supervised the building of the Breakwater from Bovisand Lodge, from which there is a view down the full length of the breakwater.
The Titanic was due to have docked here briefly on its return voyage to Britain, and the ship had a painting of Plymouth Sound on board.
As of 2019, there is a campaign to create the first National Marine Park in Britain off Plymouth Sound. [3] [4]
The Sound has been the site of a number of aircraft crashes and shipwrecks:
The Hamoaze is an estuarine stretch of the English tidal River Tamar, between its confluence with the River Lynher and Plymouth Sound.
Plymouth is a port city and unitary authority in Devon, South West England. It is located on Devon's south coast between the rivers Plym and Tamar, about 36 miles (58 km) southwest of Exeter and 193 miles (311 km) southwest of London. It is the most populous city in Devon.
The Tamar is a river in south west England that forms most of the border between Devon and Cornwall. A large part of the valley of the Tamar is protected as the Tamar Valley National Landscape, and some is included in the Cornwall and West Devon Mining Landscape due to its historic mining activities.
Cawsand and Kingsand are twin villages in southeast Cornwall, England, United Kingdom. The village is situated on the Rame Peninsula and is in the parish of Maker-with-Rame.
Fort Bovisand is a fort in Devon, England near the beach of Bovisand. It was built as a result of the Royal Commission on the Defence of the United Kingdom which reported in 1860. It is located on the mainland to defend the entrance of Plymouth Sound, at the narrows opposite the east end of Plymouth Breakwater. The fort is beside Bovisand harbour.
Mount Batten is a 24-metre (80-ft) tall outcrop of rock on a 600-metre (2000-ft) peninsula in Plymouth Sound, Devon, England, named after Sir William Batten (c.1600-1667), MP and Surveyor of the Navy; it was previously known as How Stert.
Plymouth Breakwater is a 1,560-metre (1,710 yd) stone breakwater protecting Plymouth Sound and the anchorages near Plymouth, Devon, England. It is 13 metres (43 ft) wide at the top and the base is 65 metres (213 ft). It lies in about 10 metres (33 ft) of water. Around 4 million tons of rock were used in its construction in 1812 at the then-colossal cost of £1.5 million.
The Rame Peninsula is a peninsula in south-east Cornwall. It is surrounded by the English Channel to the south, Plymouth Sound to the east, the Hamoaze to the northeast and the estuary of the River Lynher to the north-west. On a clear day, the Atlantic Ocean can be seen from advantageous points from Rame Head. The largest settlement is Torpoint, which is on the eastern coast, facing Devonport in Plymouth, Devon.
Kingsand and Cawsand are twin villages in southeast Cornwall, United Kingdom. The villages are situated on the Rame Peninsula and are in the parish of Maker-with-Rame.
Joseph Whidbey FRS was a member of the Royal Navy who served on the Vancouver Expedition 1791–95, and later achieved renown as a naval engineer. He is notable for having been the first European to discover and chart Admiralty Island in the Alexander Archipelago in Alaska in 1794.
His Majesty's Naval Base, Devonport is one of three operating bases in the United Kingdom for the Royal Navy and is the sole nuclear repair and refuelling facility for the Royal Navy. The largest naval base in Western Europe, HMNB Devonport is located in Devonport, in the west of the city of Plymouth, England.
The History of Plymouth in Devon, England, extends back to the Bronze Age, when the first settlement began at Mount Batten a peninsula in Plymouth Sound facing onto the English Channel. It continued as both a fishing and continental tin trading port through the late Iron Age into the Early Medieval period, until the more prosperous Saxon settlement of Sutton, later renamed Plymouth, surpassed it. With its natural harbour and open access to the Atlantic, the town found wealth and a national strategic importance during the establishment of British naval dominance in the colonisation of the New World. In 1620 the Pilgrim Fathers departed from Plymouth to establish the second English colony in America. During the English Civil War the town was besieged between 1642 and 1646 by the Royalists, but after the Restoration a Dockyard was established in the nearby town of Devonport. Throughout the Industrial Revolution Plymouth grew as a major mercantile shipping industry, including imports and passengers from the US, whilst Devonport grew as a naval base and ship construction town, building battleships for the Royal Navy – which later led to its partial destruction during World War II in a series of air-raids known as the Plymouth Blitz. After the war was over, the city centre was completely rebuilt to a new plan.
The following is a timeline of the history of the city of Plymouth, Devon, England.
The fortifications of Plymouth in Devon are extensive due to its natural harbour, its commanding position on the Western Approaches and its role as the United Kingdom's largest naval base. The first medieval defences were built to defend Sutton Harbour on the eastern side of Plymouth Sound at the mouth of the River Plym, but by the 18th century, naval activity had begun to shift westward to Devonport at the mouth of the River Tamar. During the Victorian era, advances in military technology led to a huge programme of fortification encompassing the whole of Plymouth Sound together with the overland approaches. Many of these works remained in military use well into the 20th century.
The attack on Cawsand was a minor Spanish raid on the coast of Cornwall, England, on the night of 14 March 1596 in the context of the Brittany Campaign during the Anglo-Spanish War.
The Western King's Redoubt is an 18th and 19th-century artillery battery in Plymouth, Devonshire, England, upgraded as a result of the Royal Commission on the Defence of the United Kingdom of 1859. Part of an extensive scheme known as Palmerston Forts, after the prime minister who championed the scheme, it was built to defend the seaward approaches to the Hamoaze, as an element of the plan for the defence of the Royal Naval Dockyard at Devonport.
Raleigh Battery is a former coastal artillery battery, built to defend the Royal Naval Dockyard at Devonport.
