Henrik Gerner
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Henrik Gerner (1742–1787) was a Danish naval officer who specialised in shipbuilding and naval architecture. His interests as an entrepreneurial engineer led to unsinkable gun platforms, horse-driven dredging machines, and desalination equipment for Orient-bound trading ships.


Early life and naval career

The greatgrandson of the bishop of the same name, Henrik Gerner was born on 5 July 1742 in Copenhagen and baptised in
Holmen Church The Holmen Church () is a Parish church in central Copenhagen in Denmark, on the street called Holmens Kanal. First built as an anchor forge in 1563, it was converted into a naval church by Christian IV. It is famous for having hosted the wedd ...
This same reference notes that the epitaph and gravestone have misreported his year of birth. and married in the same church on Christmas Eve 1773, Henrik Gerner became a volunteer cadet at the naval academy in 1755, sailing to the
West Indies The West Indies is an island subregion of the Americas, surrounded by the Atlantic Ocean, North Atlantic Ocean and the Caribbean Sea, which comprises 13 independent island country, island countries and 19 dependent territory, dependencies in thr ...
in the frigate ''Christianborg'' before becoming a full cadet the next year. Gerner graduated from the Naval Cadet Academy in
Copenhagen Copenhagen ( ) is the capital and most populous city of Denmark, with a population of 1.4 million in the Urban area of Copenhagen, urban area. The city is situated on the islands of Zealand and Amager, separated from Malmö, Sweden, by the ...
as a junior lieutenant in 1763, where he was already interested in the art and science of
shipbuilding Shipbuilding is the construction of ships and other Watercraft, floating vessels. In modern times, it normally takes place in a specialized facility known as a shipyard. Shipbuilders, also called shipwrights, follow a specialized occupation th ...
, and in 1764 sailed with the frigate ''Falster'' to Russia and Sweden, receiving expenses for the studies of ships, ships' carpentry, and the ironworkings for anchors and cannon. In 1765 he was promoted to senior lieutenant and joined ''Prins Friderich'' in 1766. He was a close colleague of Ernst Wilhelm Stibolt and they obtained junior positions in the Construction CommissionThe Construction Commission, first formed in 1739, had a remit to examine all technical drawings and associated documents of the fleet's ships., and to act as forum for the development of young naval officers, thus ensuring a certain continuity and training for future chief designers
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They were in England together studying ship building from 1768, and promotion for Gerner to ''Kaptain Lieutenant'' came in 1770. After a shorter spell in France, continuing his studies, Gerner was recalled to Denmark in 1772 and given the post of ''fabrikmester'' at Holmen and full membership of the Construction Commission. After further promotion he became a member, in 1776, of the Commission on Naval Defence and that same year was instrumental in founding the Ship Construction School.


Ship building

Some 117 ships of a variety of types and sizes are recorded To access the list click
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then>database>AVANCEREDE> set Konstruktør to Henrik Gerner >Søg!
as designed and built by Gerner, including 18 ships-of-the-line and 11 frigates. ;Ships of the line * ''Prindsesse Sophia Frederica'' (1775) * '' Indfødsretten'' (1776) * ''
Justitia Lady Justice () is an Allegory, allegorical personification of the moral force in judicial systems. Her attributes are Weighing scale, scales, a sword and sometimes a blindfold. She often appears as a pair with Prudentia. Lady Justice originat ...
'' (1777), captured by the British at the Battle of Copenhagen (1807) * ''Oldenborg'' (1779) * '' Ditmarsken'' (1780), captured by the British at the
Battle of Copenhagen (1807) The Second Battle of Copenhagen (or the Bombardment of Copenhagen) (16 August – 7 September 1807) was a British bombardment of the Danish capital, Copenhagen, in order to capture or destroy the Dano-Norwegian fleet during the Napoleonic Wars ...
* ''Arveprinds Friderich'' (1780) * ''Prindsesse Lovisa Augusta'' /1782) * ''Kronprinds Frederik'' (1784), captured by the British at the Battle of Copenhagen (1807) * ''Mars'' (1784), captured by the British at the Battle of Copenhagen (1807) * ''Nordstjernen'' (1785) * ''Indfødsretten'' (1786) * ''Fyen'' (1787) * ''Sjælland'' (1787) * ''Odin'' (1788) * ''Neptunus'' (1789), captured by the British at the Battle of Copenhagen (1807) * ''Tre Kroner'' (1789), captured by the British at the Battle of Copenhagen (1807) * ''Skiold'', captured by the British at the Battle of Copenhagen (1807) ;Frigates * ''Bornholm'' (1774) * ''Kiel'' (1775) * ''Møen'' (1777) * ''Disco'' /1778) * ''St, Thomas'' (1779) * ''Cronborg'' (1781) * '' Det Store Bælt'' (1782), sold to the
Danish Asiatic Company Danish Asiatic Company (Danish language, Danish: Asiatisk Kompagni) was a Denmark-Norway, Danish trading company established in 1730 to revive Danish-Norwegian trade on the Danish East Indies and China following the closure of the Danish East Ind ...
in 1800. * (1783), captured August 1807 before the Battle of Copenhagen. See
Gunboat War The Gunboat War (, , Swedish: ''Kanonbåtskriget''; 1807–1814) was a naval conflict between Denmark–Norway and Great Britain supported by Sweden during the Napoleonic Wars. The war's name is derived from the Danish tactic of employing sm ...
* (1784) * ''Pommern'' (1785) ;MNerchant ships * (1783) * ''Den Gode Hensigt'', was a merchant ship built for the East India trade, and chartered by British merchants.


Defence works

*
Floating Battery A floating battery is a kind of armed watercraft, often improvised or experimental, which carries heavy armament but has few other qualities as a warship. History During the Capture of Mahdia (1550), capture of Mahdia in 1550, Spanish c ...
No.1, (1787), an unsinkable platform heavily armed with 24-pound cannon survived the Battle of Copenhagen (1801) but was decommissioned the following year.


Other engineering achievements

* Dredging machine. In 1783 a novel machine for dredging the harbours and creeks excited public imagination. Prior to Gerner's new invention powered by horses, the clearing of mud and silt from the channels was a very labour-intensive project in order to allow ships to be hauled up and their bottoms scraped and cleaned. * Desalination


Commemoration

The Gerner Medal "for the naval cadet who showed the best insight and understanding of the science of seafaring, especially mathematics" was first presented in 1792. Its history was later associated with the sword of honour. Both honours are still available today - see :da: Gerners Medalje. One hundred years after Henrik Gerner's death, a 72-page appreciation of his works and character was published in memoriam. The street Gernersgade in Copenhagen was named for Gerner in 1869.Henrik Gerners Vej in
Birkerød Birkerød () is a town in Rudersdal Municipality in the northern outskirts of Copenhagen, Denmark. It is surrounded by several lakes and small woodlands. Birkerød station is located on the Nordbanen, Hillerød radial of the S-train suburban networ ...
is on the other hand name for his great-grandfather. Two ships of the twentieth century Danish navy have borne his name * Submarine depot ship ''Henrik Gerner'' (1928–1943)
scuttled Scuttling is the act of deliberately sinking a ship by allowing water to flow into the hull, typically by its crew opening holes in its hull. Scuttling may be performed to dispose of an abandoned, old, or captured vessel; to prevent the vesse ...
, with another 31 vessels, in August 1943 in Copenhagen harbour to prevent being forcibly taken by German forces. * Submarine depot ship ''Henrik Gerner'' (1964–1975)HDMS Henrik Gerner (1964) in English
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Gallery

File:Holmens Kirke Copenhagen epitaph s07.jpg, Epitaph in Holmen Church Image:Kastrup Kirke, Vordingborg 'Enigheden' 2009-10-13 001.jpg, Model of the Gerner-designed ship ''Emigheden''


Further reading

* Giødesen, P. F.:
Mindeskrift: Henrik Gerner, Flådens fabriksmester, 1662-1676
'


Notes


References


Bibliography and external links

* Balsved's Danish Naval Histor

(more complete than the English version) * Christensen, Benny:
Den Gode Hensigt
' * Giødese
Mindeskrift om Henrik Gerner
Flaadens Fabrikmester by P. F. Giødesen, commander of the Naval Lieutenants Association * Royal Danish Naval Museu

*
Royal Danish Naval Museum
*

Both Gerners appear on the same page! * T. A. Topsøe-Jensen og Emil Marquard (1935) “Officerer i den dansk-norske Søetat 1660-1814 og den danske Søetat 1814-1932“. {{DEFAULTSORT:Gerner, Henrik 18th-century Royal Dano-Norwegian Navy officers 18th-century Danish shipbuilders Royal Danish Naval Academy alumni Military personnel from Copenhagen 1742 births 1787 deaths