View source for French submarine Émeraude (1906)

{{other ships|French ship Émeraude}}
{|{{Infobox ship begin}}
{{Infobox ship image
|Ship image=Emeraude-Agence Rol.jpeg
|Ship caption=''Émeraude'' underway on the surface, 31 July 1909
}}
{{Infobox ship career
|Hide header=
|Ship country=France
|Ship flag={{Shipboxflag|France|naval}}
|Ship name=''Émeraude''
|Ship namesake=[[Emerald]]
|Ship awarded=
|Ship builder=[[Arsenal de Cherbourg]]
|Ship original cost=
|Ship laid down=October 1903
|Ship launched=6 August 1906
|Ship christened=
|Ship completed= 11 November 1908
|Ship commissioned=
|Ship recommissioned=
|Ship decommissioned=
|Ship in service=
|Ship out of service=
|Ship struck=1 December 1919
|Ship identification=[[Pennant number]]: Q41
|Ship fate=Sold for [[ship breaking|scrap]], 27 January 1923
|Ship notes=
}}
{{Infobox ship characteristics
|Hide header=
|Header caption=
|Ship class={{sclass|Émeraude|submarine|||1906}}
|Ship displacement=*{{Convert|395|t|LT|0|abbr=on}} (surfaced)
* {{Convert|427|t|LT|0|abbr=on}} (submerged)
|Ship length={{convert|44.9|m|ftin|abbr=on}} ([[o/a]])
|Ship beam={{convert|3.9|m|ftin|abbr=on}}
|Ship draft={{convert|3.77|m|ftin|abbr=on}}
|Ship power=*{{convert|600|PS|kW bhp|lk=on|abbr=on}}  ([[diesel engine]]s)
* 600&nbsp;PS ([[electric motor]]s)
|Ship propulsion=*2 × shafts; 2 × diesels; 2 × electric motors
|Ship speed=*{{convert|11.26|kn|lk=in}} (surfaced)
* {{convert|8.7|kn}} (submerged)
|Ship range=*{{convert|2000|nmi|abbr=on|lk=in}} at {{convert|7.3|kn}} (surfaced)
* {{convert|100|nmi|abbr=on}} at {{convert|5|kn}} (submerged)
|Ship test depth={{convert|40|m|ft|abbr=on}}
|Ship complement=2 officers and 23 crewmen
|Ship armament=4 × {{convert|450|mm|in|1|abbr=on}} [[torpedo tube]]s (2 × bow, 2 × stern)
}}
|}
'''Émeraude''' was [[name ship|the lead boat]] of [[Émeraude-class submarine (1906)|her class]] of six [[submarine]]s built for the [[French Navy]] ({{lang|fr|Marine Nationale}}) in the first decade of the 20th century.
==Design and description==
The ''Émeraude'' class were built as part of the French Navy's 1903 building program to a [[Gabriel Maugas|Maugas]] single-hull design.<ref name=gg8>Gardiner & Gray, p. 208</ref> The submarines [[Displacement (ship)|displaced]] {{convert|395|t|LT|sp=us|lk=on}} surfaced and {{convert|427|t|LT|sp=us}} submerged. They had an [[length overall|overall length]] of {{convert|44.9|m|ftin|sp=us}}, a [[beam (nautical)|beam]] of {{convert|3.9|m|ftin|sp=us}}, and a [[draft (hull)|draft]] of {{convert|3.8|m|ftin|sp=us}}. They had an [[Submarine depth ratings|operational diving depth]] of {{convert|40|m|sp=us}}. Their crew numbered 2 officers and 23 enlisted men.<ref>Garier 1998, pp. 12–13, 23</ref>
For surface running, the boats were powered by two [[Sautter-Harlé]] {{convert|300|PS|bhp kW|lk=on|0|adj=on}} [[diesel engine]]s, each driving one [[propeller shaft]]. When submerged each propeller was driven by a 300-metric-horsepower [[electric motor]]. They could reach a maximum speed of {{convert|11.26|kn|lk=in}} on the surface and {{convert|8.5|kn}} underwater. The ''Émeraude'' class had a surface endurance of {{convert|2000|nmi|lk=in}} at {{convert|7.3|kn}} and a submerged endurance of {{cvt|100|nmi}} at {{convert|5|kn}}.<ref>Garier 1998, p. 18</ref>
The boats were armed with four internal {{convert|450|mm|in|1|adj=on|sp=us}} [[torpedo tube]]s, two in the bow and two in the stern, for which they carried six [[torpedo]]es.<ref>Garier 1998, pp. 18–19</ref>
==Construction and career==
''Émeraude'' was [[laid down]] in October 1903<ref>Couhat, p. 138</ref> at the [[Arsenal de Cherbourg]], [[Ceremonial ship launching|launched]] on 6 August 1906 and [[Ship commissioning|commissioned]] on 11 November 1908.<ref>Garier 1998, p. 12</ref>
==Citations==
{{reflist|30em}}
==Bibliography==
*{{cite book|last=Couhat|first=Jean Labayle|title=French Warships of World War I|year=1974|publisher=Ian Allan|location=London|isbn=0-7110-0445-5}}
*{{cite book|last1=Gardiner|first1=Robert|last2=Gray|first2=Randal|title=Conway's All The World's Fighting Ships 1906–1921|year=1985|publisher=Conway Maritime Press|location=London|isbn=0-85177-245-5|name-list-style=amp}}
*{{cite book|last=Garier|first=Gérard|title=A l'épreuve de la Grande Guerre|series=L'odyssée technique et humaine du sous-marin en France|volume=3–2|year=2002|publisher=Marines édition|location=Bourg-en-Bresse, France|isbn=2-909675-81-5|language=French}}
*{{cite book|last=Garier|first=Gérard|title=Des ''Émeraude'' (1905-1906) au ''Charles Brun'' (1908–1933)|series=L'odyssée technique et humaine du sous-marin en France|volume=2|year=1998|publisher=Marines édition|location=Bourg-en-Bresse, France|isbn=2-909675-34-3|language=French}}
{{Émeraude-class submarine (1906)}}
{{DEFAULTSORT:Emeraude}}
[[Category:Émeraude-class submarine (1906)]]
[[Category:World War I submarines of France]]
[[Category:1906 ships]]