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==Design==
==Design==
''Davout'' was designed during the tenure of Admiral [[Théophile Aube]], who had become the [[French Minister of Marine]] in 1886. Aube was an ardent supporter of the {{lang|fr|[[Jeune École]]}} doctrine, which envisioned using a combination of cruisers and [[torpedo boat]]s to defend France and attack enemy merchant shipping. By the time Aube had come to office, the [[French Navy]] had laid down three large [[protected cruiser]]s that were intended to serve as [[commerce raider]]s: {{ship|French cruiser|Sfax||2}}, {{ship|French cruiser|Tage||2}}, and {{ship|French cruiser|Amiral Cécille||2}}. His proposed budget called for another six large cruisers and ten smaller vessels, but by the time it was approved, it had been modified to three large cruisers: the {{sclass|Alger|cruiser|4}}; six small cruisers: the {{sclass|Forbin|cruiser|5}} and {{sclass|Troude|cruiser|4}}es; and two medium ships.{{sfn|Campbell|pp=308–310}}{{sfn|Ropp|pp=158–159, 172}}
''Davout'' was designed during the tenure of Admiral [[Théophile Aube]], who had become the [[French Minister of Marine]] in 1886, though the ship traces its origin to design specifications issued by Aube's predecessor, [[Charles-Eugène Galiber]], in December 1885. Galiber requested a ship of {{cvt|2600|t|lk=on}} with a speed of {{convert|18|kn|lk=in}} with [[forced draft]]. Aube was an ardent supporter of the {{lang|fr|[[Jeune École]]}} doctrine, which envisioned using a combination of cruisers and [[torpedo boat]]s to defend France and attack enemy merchant shipping.{{sfn|Ropp|pp=158–159}}{{sfn|Roberts|p=239}}


By the time Aube had come to office, the [[French Navy]] had laid down three large [[protected cruiser]]s that were intended to serve as [[commerce raider]]s: {{ship|French cruiser|Sfax||2}}, {{ship|French cruiser|Tage||2}}, and {{ship|French cruiser|Amiral Cécille||2}}.{{sfn|Campbell|pp=308–310}} His proposed budget called for another six large cruisers and ten smaller vessels.{{sfn|Ropp|p=172}} By this time, a total of eleven designs were submitted to be evaluated by the {{lang|fr|[[Conseil des travaux|Conseil des Travaux]]}} (Council of Works), and that prepared by [[de Bussy]] was selected. Aube ordered three ships to the design on 1 March 1887: ''Davout'', {{ship|French cruiser|Suchet||2}}, and ''Chanzy'', though the contracts were not finalized by the time Aube left the ministry, being replaced by [[Édouard Barbey]].{{sfn|Roberts|p=239}}
⚫
The last pair were ordered as ''Davout'' and ''Chanzy'', though the latter vessel was allocated to the budget in 1887 but was very quickly cancelled. At the same time, {{ship|French cruiser|Suchet||2}} was ordered as a third sister to ''Davout'', and these ships were to serve as prototypes for the later {{sclass|Friant|cruiser|4}}. During work on ''Suchet'' the supervisor at [[Toulon]] decided alterations needed to be made, so only ''Davout'' was completed to the original design. And after it became clear that the propulsion system for ''Davout'' would not meet the intended speed. These engines in turn necessitated increases in [[displacement (ship)|displacement]] and the other vessels were re-designed to accommodate the changes.{{sfn|Ships: France (1)|p=272}}{{sfn|Roberts|pp=239–240}}

⚫
On reviewing Aube's plans and the French naval budget, Barbey decided that the proposed cruiser program would have to be reduced. In May 1887, when the budget was approved, the plan was modified to three large cruisers: the {{sclass|Alger|cruiser|4}}; six small cruisers: the {{sclass|Forbin|cruiser|5}} and {{sclass|Troude|cruiser|4}}es; and two medium ships. ''Chanzy'' was cancelled and ''Davout'' and ''Suchet'' filled the requirement for the two medium ships. These ships were to serve as prototypes for the later {{sclass|Friant|cruiser|4}}. During work on ''Suchet'' the supervisor at [[Toulon]] decided alterations needed to be made, so only ''Davout'' was completed to the original design. And after it became clear that the propulsion system for ''Davout'' would not meet the intended speed. These engines in turn necessitated increases in [[displacement (ship)|displacement]] and the ''Friant''-class ships were re-designed to accommodate the changes.{{sfn|Ships: France (1)|p=272}}{{sfn|Roberts|pp=239–240}}


===Characteristics===
===Characteristics===

Revision as of 23:54, 16 April 2022

Davout early in her career
Class overview
Preceded byAmiral Cécille
Succeeded bySuchet
History
France
NameDavout
Ordered1 March 1887
Laid down12 September 1887
Launched31 October 1889
Commissioned20 October 1890
Decommissioned1 May 1909
Stricken9 March 1910
FateBroken up, 1913
General characteristics
Displacement3,330 t (3,280 long tons; 3,670 short tons)
Length91.25 m (299 ft 5 in) loa
Beam11.62 m (38 ft 1 in)
Draft4.65 m (15 ft 3 in)
Installed power
Propulsion
Speed20.7 knots (38.3 km/h; 23.8 mph)
Complement329
Armament
Armor

Davout was a protected cruiser of the French Navy that was built in the late 1880s and early 1890s. The ship was ordered during the tenure of Admiral Théophile Aube as the French Minister of Marine, who favored a fleet centered on large numbers of cruisers of various types. Davout and the similar vessel Suchet were ordered to fill the role of a medium cruiser in Aube's plans. Davout was armed with a main battery of six 164 mm (6.5 in) guns in single mounts, and she had a top speed of 20.7 knots (38.3 km/h; 23.8 mph).

Davout had a relatively uneventful career; her completion was delayed by two years due to problems with her propulsion system. After entering service in 1893, she was assigned to the Reserve Squadron, based in the Mediterranean Sea. The ship spent the rest of the decade operating either with the Reserve Squadron for training exercises or as part of the training unit of the French fleet. In 1899, she received a major overhaul that included the installation of new boilers, and in 1902, she was assigned to the North Atlantic Station. By 1910, she had been struck from the naval register, and Davout was subsequently sold to ship breakers.

Design

Davout was designed during the tenure of Admiral Théophile Aube, who had become the French Minister of Marine in 1886, though the ship traces its origin to design specifications issued by Aube's predecessor, Charles-Eugène Galiber, in December 1885. Galiber requested a ship of 2,600 t (2,600 long tons; 2,900 short tons) with a speed of 18 knots (33 km/h; 21 mph) with forced draft. Aube was an ardent supporter of the Jeune École doctrine, which envisioned using a combination of cruisers and torpedo boats to defend France and attack enemy merchant shipping.[1][2]

By the time Aube had come to office, the French Navy had laid down three large protected cruisers that were intended to serve as commerce raiders: Sfax, Tage, and Amiral Cécille.[3] His proposed budget called for another six large cruisers and ten smaller vessels.[4] By this time, a total of eleven designs were submitted to be evaluated by the Conseil des Travaux (Council of Works), and that prepared by de Bussy was selected. Aube ordered three ships to the design on 1 March 1887: Davout, Suchet, and Chanzy, though the contracts were not finalized by the time Aube left the ministry, being replaced by Édouard Barbey.[2]

On reviewing Aube's plans and the French naval budget, Barbey decided that the proposed cruiser program would have to be reduced. In May 1887, when the budget was approved, the plan was modified to three large cruisers: the Alger class; six small cruisers: the Forbin and Troude classes; and two medium ships. Chanzy was cancelled and Davout and Suchet filled the requirement for the two medium ships. These ships were to serve as prototypes for the later Friant class. During work on Suchet the supervisor at Toulon decided alterations needed to be made, so only Davout was completed to the original design. And after it became clear that the propulsion system for Davout would not meet the intended speed. These engines in turn necessitated increases in displacement and the Friant-class ships were re-designed to accommodate the changes.[5][6]

Characteristics

Sketch of Davout from 1890, incorrectly showing her with a sailing rig

Davout was 91.25 m (299 ft 5 in) long overall, with a beam of 11.62 m (38 ft 1 in) and an average draft of 4.65 m (15 ft 3 in), which increased to 6 m (19 ft 8 in) aft. She displaced 3,330 t (3,280 long tons; 3,670 short tons). Her hull featured a pronounced ram bow, an overhanging stern, and a flush deck. The bow was not actually strengthened to permit ramming attacks.[2] As was typical for French warships of the period, she had a pronounced tumblehome shape. Her superstructure was minimal, consisting primarily of a small conning tower forward and a pair of heavy military masts with fighting tops that housed some of her light guns.[7] Her crew consisted of 323 officers and enlisted men.[2]

The propulsion system for Davout consisted of two inverted, 3-cylinder triple-expansion steam engines that drove a pair of screw propellers. Steam was provided by eight coal-fired fire-tube boilers that were ducted into two widely spaced funnels located amidships. The power plant was rated to produce 8,950 indicated horsepower (6,670 kW) for a top speed of 20 knots (37 km/h; 23 mph). On her initial speed trials, she reached 9,039 ihp (6,740 kW) for a speed of 20.07 knots (37.17 km/h; 23.10 mph). Coal storage amounted to 477 t (469 long tons; 526 short tons) normally and up to 534 t (526 long tons; 589 short tons) at full load. The ship had a cruising radius of 7,130 nautical miles (13,200 km; 8,210 mi) at the economical speed of 10 knots (19 km/h; 12 mph). Davout was the first French protected cruiser to discard a sailing rig.[7][2]

Davout was armed with a main battery of six 164.7 mm (6.48 in) M1884 30-caliber (cal.) guns carried in individual pivot mounts. Four of the guns were mounted in sponsons on the upper deck, two on each broadside. One gun was placed in the bow and the other was at the stern as chase guns. For close-range defense against torpedo boats, she carried four 65 mm (2.6 in) M1888 9-pounder guns, four 47 mm (1.9 in) M1885 40-cal. 3-pounder Hotchkiss guns, and eight 37 mm (1.5 in) M1885 20-cal. 1-pounder guns, all in individual mounts. She also carried six 350 mm (13.8 in) torpedo tubes in her hull above the waterline. Two were in the bow, one was on each broadside, and the remaining two were in the stern.[7][2]

The ship was protected by an armor deck that consisted of mild steel. The deck was 82 mm (3.2 in) thick on the flat portion that covered her propulsion machinery spaces and magazines; for the rest of the hull's length, the deck was reduced significantly to 30 mm (1.2 in). Toward the sides of the ship, the deck sloped down with a uniform thickness of 80 mm (3.1 in). The entire deck, both the flat and sloped sections, were layered on 20 mm (0.79 in) of hull plating.[2] The flat section of the deck was 0.51 m (1 ft 8 in) above the waterline and the sloped sides met the hull plating 1.09 m (3 ft 7 in) below the line.[7] Above the deck, a cofferdam was placed to contain shell fragments and control flooding in the event of damage.[8] Her main battery guns were fitted with 4 mm (0.16 in) gun shields to deflect shell fragments.[2]

Service history

Davout shortly before her completion

Davout was ordered on 1 March 1887, and she was built in Toulon, France; her keel laying took place on 12 September 1887 and she was launched on 31 October 1889. She was commissioned on 20 October 1890 to begin sea trials,[2] but these were delayed after problems with her propulsion system required multiple repairs and alterations, including the brazing of her boiler tubes, which had to be redone. The pistons in her engines also had to be replaced.[9] The ship finally completed in 1892, and she was placed in full commission on 20 September. At that time, she joined the Mediterranean Squadron, which was based in Toulon.[2] The following year, Davout was transferred to the Reserve Squadron, where she spent six months of the year on active service with full crews for maneuvers; the rest of the year was spent laid up with a reduced crew. At that time, the unit also included several older ironclads and the cruisers Tage, Sfax, Forbin, and Condor.[10]

Davout was sent to Rochefort to have her guns replaced with quick-firing versions of the same calibers.[11] She took part in the fleet maneuvers in 1895, which began on 1 July and concluded on the 27th. She was assigned to "Fleet B", which along with "Fleet A" represented the French fleet, and was tasked with defeating the hostile "Fleet C", which represented the Italian fleet.[12] Her active career was limited, and by 1896, she was reduced to the 2nd category of reserve, along with several old coastal defense ships, ironclads, and other cruisers. They were retained in a state that allowed them to be mobilized in the event of a major war.[13]

She was withdrawn from service for a lengthy reconstruction in 1897 that included the installation of Niclausse type water-tube boilers.[14] The project was deferred, and in 1898, Davout was assigned to the training squadron, along with the armored cruiser Amiral Charner and the protected cruiser Friant.[15] She had been reduced to the reserve fleet by January 1899,[16] by which point the project was underway. The work was completed in Rochefort in early 1899, Davout having received ten of the new boilers. Her military masts were replaced with lighter pole masts and her engines were overhauled. Davout was recommissioned on 1 April that year and re-joined the training squadron.[7][17] She continued to operate in the training squadron with Amiral Charner and Friant. The squadron steamed to Brest in late September that year to be dispersed and deactivated for the winter; Davout was sent to the naval base at Rochefort to be laid up on 1 October.[18]

The ship was reactivated in 1902 to replace the cruiser Suchet on the North Atlantic station.[19] At some point later in her career, two of her torpedo tubes were removed, and later again, another pair were removed.[7] The ship was decommissioned on 1 May 1909 and was later assigned to serve as a training ship for boiler room crews on 27 May, to be based at Brest. She was towed there on 16 August and anchored in Landévennec, outside of Brest. She remained there for a short time before being struck from the naval register on 9 March 1910, though she was not sold to ship breakers until 23 October 1913. She was thereafter broken up in Brest.[2]

Notes

  1. ^ Ropp, pp. 158–159.
  2. ^ a b c d e f g h i j k Roberts, p. 239.
  3. ^ Campbell, pp. 308–310.
  4. ^ Ropp, p. 172.
  5. ^ Ships: France (1), p. 272.
  6. ^ Roberts, pp. 239–240.
  7. ^ a b c d e f Campbell, p. 309.
  8. ^ Marshall, p. 83.
  9. ^ Ships: France (4), p. 600.
  10. ^ Brassey 1893, p. 70.
  11. ^ Naval and Military Notes, p. 563.
  12. ^ Gleig, pp. 195–196.
  13. ^ Weyl 1896, p. 96.
  14. ^ Weyl 1897, p. 29.
  15. ^ Naval Notes: France 1898, p. 1092.
  16. ^ Jordan & Caresse, p. 219.
  17. ^ Naval Notes: France 1899, p. 465.
  18. ^ Garbett, pp. 1025–1026.
  19. ^ Brassey 1902, p. 52.

References

  • Brassey, Thomas A. (1893). "Chapter IV: Relative Strength". The Naval Annual. Portsmouth: J. Griffin & Co.: 66–73. OCLC 496786828.
  • Brassey, Thomas A. (1902). "Chapter III: Relative Strength". The Naval Annual. Portsmouth: J. Griffin & Co.: 47–55. OCLC 496786828.
  • Campbell, N. J. M. (1979). "France". In Gardiner, Robert (ed.). Conway's All the World's Fighting Ships 1860–1905. London: Conway Maritime Press. pp. 283–333. ISBN 978-0-85177-133-5.
  • Garbett, H., ed. (September 1899). "Naval Notes: France". Journal of the Royal United Service Institution. XLIII (259). London: J. J. Keliher & Co.: 1024–1027. OCLC 1077860366.
  • Gleig, Charles (1896). Brassey, Thomas A. (ed.). "Chapter XII: French Naval Manoeuvres". The Naval Annual. Portsmouth: J. Griffin & Co.: 195–207. OCLC 496786828.
  • Jordan, John & Caresse, Philippe (2017). French Battleships of World War One. Annapolis: Naval Institute Press. ISBN 978-1-59114-639-1.
  • Marshall, Chris, ed. (1995). The Encyclopedia of Ships: The History and Specifications of Over 1200 Ships. Enderby: Blitz Editions. ISBN 1-85605-288-5.
  • "Naval and Military Notes: France". Journal of the Royal United Service Institution. XXXVIII (193). London: J. J. Keliher & Co.: 562–564 May 1894. OCLC 1077860366.
  • "Naval Notes: France". Journal of the Royal United Service Institution. XLII (247). London: J. J. Keliher & Co.: 1091–1094 September 1898. OCLC 1077860366.
  • "Naval Notes: France". Journal of the Royal United Service Institution. XLIII (254). London: J. J. Keliher & Co.: 464–468 April 1899. OCLC 1077860366.
  • Roberts, Stephen (2021). French Warships in the Age of Steam 1859–1914. Barnsley: Seaforth. ISBN 978-1-5267-4533-0.
  • Ropp, Theodore (1987). Roberts, Stephen S. (ed.). The Development of a Modern Navy: French Naval Policy, 1871–1904. Annapolis: Naval Institute Press. ISBN 978-0-87021-141-6.
  • "Ships: France". Journal of the American Society of Naval Engineers. III (4). Washington, D.C.: American Society of Naval Engineers: 269–281. November 1891. ISSN 2376-8142.
  • "Ships: France". Journal of the American Society of Naval Engineers. III (4). Washington, D.C.: American Society of Naval Engineers: 599–604. 1891. ISSN 2376-8142.
  • Weyl, E. (1896). Brassey, Thomas A. (ed.). "Chapter IV: The French Navy". The Naval Annual. Portsmouth: J. Griffin & Co.: 61–72. OCLC 496786828.
  • Weyl, E. (1897). Brassey, Thomas A. (ed.). "Chapter II: The Progress of Foreign Navies". The Naval Annual. Portsmouth: J. Griffin & Co.: 16–55. OCLC 496786828.
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