A
Quick History
Calshot is one of the smaller examples
of a grand fortification scheme that defended the coast from
Cornwall to London. The castles that Henry VIII built marked a change
in warfare. They were the first fortifications in England built to house
Cannons and resist cannon fire.
The age of the gun had arrived. |
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The Keep.
A practical design with a simple task.
Bring as many cannons as possible to bear onto the enemy.
This was not a grand home for a medieval
lord but a structure of war. Built to serve and defend against the power
of gunpowder. |
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| A
Time Line |
Changing use with changing times |
Tudor period, the
castle is built
1539
Work starts on building
the castle
1540
Castle completed and garrison
established
1559
The Condition of castle
declines, only 10 cannon are usable
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Henry VIII's Involvement
Henry VIII had a great
interest in fortification and weapon development and is credited for introducing
several innovations. This credit may have been given out of politeness
but there is no doubt that his active involvement did influence design
improvements. His dissolution of the monasteries released the money required
for his fortress building. It is believed that some of the building stone
for Calshot Castle came from Bulieu and Netley Abbeys.
Layers of fire
The design of the
castle with a three story gun tower was a means of dealing with the limitations
of the cannons. The early Tudor cannons had limited elevation capability
so mounting them at different heights was a method of obtaining a greater
depth of fire. The concept was influenced by fortifications in Germany. |
1642
Civil war: The guns are
disabled by a Parliamentarian gunboat until it agreed to be support their
cause.
1774
First major alteration to
the castle
1850
Modernisation plans rejected
as military role of castle limited.
1856
Admiralty obtained castle
and used for coast guard duties.
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Saved: The only
one of three to survive
Calshot was one of
three Castles built overlooking Southampton water. The Parliamentarians
left the other two at Netley and St Andrews (at Hamble) disabled after
the Civil war.The importance of Calshost's position ensured its survival
as a fortification under the new management.
Up and down: Number
of Cannon at the Castle
The number of guns
at Calshot, and the state of repair of the building fluctuated as the threat
from abroad changed.
| Year |
Guns |
1540
1559
1702
1725 |
36
10
25
13 |
Smugglers and Duty men
The long history of
the Coastguard at the spit was not the result of a concern for mariners
safety but of law enforcement. Smuggling was a local industry and the castle
at Calshot provided a perfect spot for the Revenue men to be based. |
Late 19th and20th Centuries
New uses.
1894
Castle passed to War office
and used as defence against torpedo craft
1895
Work started on new a battery
to the south of the castle.
1907 Castle altered
to take new guns
1913 Royal Naval
air station opened on the spit.
1918 Guns had been
removed.
1940 Guns
remounted on roof of castle and searchlights installed.
1970s New coast guard
tower built and castle passed to English Heritage
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New threat, New weapons
The guns installed
in 1895 was the response to the development of a new threat. The threat
posed by the combination of two new technologies, steam powered warships
and the torpedo. The combination of these had resulted in small fast torpedo
boats could conduct night raids on ports and shipping. Quick
firing guns (QF) and searchlights was the Admiralties answer to this
threat and Calshot was in a prime position to mount such weapons.
Nothing remains
Not enough room existed
within the Castle for the planned QF guns. A new battery was therefore
built the South. The new battery mounted two 4.7 inch guns and four 12
pdr guns. Later hanger builder has destroyed the remains of this
construction but the site of the roof mounted guns (1907) can still be
seen.
Seaplanes, fast Launches
and Lawrence of Arabia
The air station that
grew up around the Castle soon acquired a fascinating history of its own.
But that is the subject of a web page that will soon be added to this site
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