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French Navy - Marine Nationale D’Estienne d’Orves class Corvette Type A69 Aviso |
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04/22 | |||||||||||||||||
Units: | |||||||||||||||||
F 781 FS D'Estienne d'Orves (1976-99) F 782 FS Amyot d'Inville (1976-99) F 783 FS Drogou (1976-2000) F 784 FS Detroyat (1977-97) F 785 FS Jean Moulin (1977-99) F 786 FS Quartier-Maitre Anquetil (1979-2000) F 787 FS Commandant de Pimodan (1978-2000) F 788 FS Second-Maitre Le Bihan (1979-2000) F 789 FS Lieutenant de vaisseau Le Henaff (1980-2020) F 790 FS Lieutenant de vaisseau Lavallee (1980-2018) F 791 FS Commandant L’Herminier (1986-2018) F 792 FS Premier-Maitre L’Her (1981- ) F 793 FS Commandant Blaison (1982- ) F 794 FS Enseigne de vaisseau Jacoubet (1982- ) F 795 FS Commandant Ducuing (1983- ) F 796 FS Commandant Birot (1984- ) F 797 FS Commandant Bouan (1984- ) |
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Specifications: | |||||||||||||||||
Displacement: 1100 tons (standard) / 1270 tons (full load) Length: 80 m (262 feet 6 inches) Beam: 10.3 m (33 ft 10 in) Draught: 5.3 m (17 ft 5 in) Speed: 23.5 knots (43.5 km/h; 27.0 mph) Range: 4,500 nmi (8,300 km; 5,200 mi) at 15 knots (28 km/h; 17 mph) Complement: 90 Propulsion: 2 x SEMT Pielstick 12 PC 2 V400 diesel engines 8,900 kW (12,000 bhp) 2 shafts / 2 propellers Armament: 2 x Exocet MM38 SSM launcher (removed from French ships when reclassified as OPV's) 1 x GIAT Model 68 100mm CADAM gun with Najir fire control system and CMS LYNCEA 2 x GIAT/Nexter Model F2 20 mm guns (added later) 4 x L3 or L5 type torpedoes in four fixed catapults (removed from French ships when reclassified as OPV's) 1 x Bofors 375 mm ASW 6-tube rocket launcher (removed from French ships when reclassified as OPV's) 1 x MBDA Simbad Mistral SAM twin launcher (added later) Systems: 1 x DRBV 51A air/surface sentry radar 1 x DRBC 32E fire control radar 1 x Decca 1226 navigation radar 1 x DUBA 25 hull sonar 1 x ARBR 16 radar interceptor 2 x Dagaie decoy launchers 1 x SLQ-25 Nixie torpedo countermeasure system Aviation: none |
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The D'Estienne d'Orves-class avisos, also known as the A69 type
avisos, is a class of avisos, comparable in size to a light
corvette, mainly designed for coastal anti-submarine defence, but
are also available for high sea escort missions (notably in support
missions with the FOST). Built on a simple and robust design, they
have an economical and reliable propulsion system which allows them
to be used for overseas presence missions. They were initially
intended for use by the French Navy, but have been acquired by the
South African Navy,
Argentinian Navy and
Turkish Navy. Design and description: The D'Estienne d'Orves-class avisos were primarily designed for anti-submarine warfare (ASW) in coastal areas and colonial coastal patrol. They were ordered as replacements for the E 50 and E 52 type escorteurs of the French Navy. The ships are built austerely and have a standard displacement of 1,100 tonnes (1,100 long tons) and 1,270 tonnes (1,250 long tons) at full load. The avisos are 80 metres (262 ft 6 in) long overall and 76 metres (249 ft 4 in) between perpendiculars with a beam of 10.3 metres (33 ft 10 in) and a draught of 5.3 metres (17 ft 5 in). The avisos are propelled by two shafts turning controllable pitch propellers powered by two SEMT Pielstick 12 PC 2 V400 diesel engines rated at 8,900 kilowatts (12,000 bhp). The two engines are located in a single engine room mounted next to each other and controlled from a room abaft the machinery room. The two diesel engine system was selected due to the preference of endurance over speed. The D'Estienne d'Orves class has a maximum speed of 23.5 knots (43.5 km/h; 27.0 mph) and a range of 4,500 nautical miles (8,300 km; 5,200 mi) at 15 knots (28 km/h; 17 mph). All ships in the class are fitted with fin stabilisers except for Commandant Ducuing and Commandant Birot. The class was intended to be constructed in two groups, the A 69 and A 70 types, with the latter type fitted with two Exocet MM38 surface-to-surface missiles (SSM) on either side of the funnel, but in the end, all ships of the class were fitted with the SSMs. The ships are armed with a 100 mm (3.9 in) CADAM gun turret with Najir fire control system and CMS LYNCEA, a pair of 20 mm (0.8 in) modèle F2 guns and four 12.7 mm (0.5 in) machine guns. For ASW operations, the D'Estienne d'Orves class mounts four fixed catapults for L3 or L5 type torpedoes with no reloads carried and one remote-controlled sextuple 375 mm (14.8 in) rocket launcher, with 30 reloads carried in a magazine located beneath the aft deckhouse. The D'Estienne d'Orves class is equipped with one air/surface DRBV 51A sentry radar, one DRBC 32E fire control radar one Decca 1226 navigation radar and DUBA 25 hull-mounted sonar. The DUBA 25 is situated in a fixed dome with a retractable transducer, but is designed strictly for use in coastal waters. As countermeasures the avisos have one ARBR 16 radar interceptor, two Dagaie decoy launchers and one SLQ-25 Nixie countermeasure system, which was fitted in the mid-1980s. The ships have a complement of 90 and have space to accommodate 18 marines. Modifications: Beyond the Nixie countermeasure system, the funnels aboard the avisos were heightened due to issues with the gases coming from them. Commandant L'Herminier had SEMT Pielstick 12 PA 6 BTC diesels with infrared suppression systems installed which led to delays into the vessel's entry into service. In 1993, Commandant Blaison and Enseigne de vaisseau Jacoubert had their rocket launchers removed and a Syracuse II satcom terminal installed. Plans were drawn up to give the two ships a hangar and flight deck for helicopters, but this was abandoned. From 2009, the remaining vessels in French service were reclassified as offshore patrol vessels (OPVs) and, as a result, had their surface-to-surface missiles and heavy anti-submarine weapons removed. Replacement of these vessels in French service is currently planned from about 2025 by a new class of ocean-going patrol vessels. 6 units were sold to the Turkish Navy and are in service there as the Burak (B) class Corvettes. source: wikipedia (11/20) > An aviso is a French kind of combat-capable ships, smaller in size than a corvette, but greater than patrol ships. |
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images | |||||||||||||||||
armament (as built) F 781 FS D'Estienne d'Orves F 788 FS Second-Maitre Le Bihan F 789 FS Lieutenant de vaisseau Le Henaff F 789 FS Lieutenant de vaisseau Le Henaff F 789 FS Lieutenant de vaisseau Le Henaff F 789 FS Lieutenant de vaisseau Le Henaff F 789 FS Lieutenant de vaisseau Le Henaff F 790 FS Lieutenant de vaisseau Lavallee F 790 FS Lieutenant de vaisseau Lavallee F 790 FS Lieutenant de vaisseau Lavallee F 790 FS Lieutenant de vaisseau Lavallee F 791 FS Commandant L’Herminier F 791 FS Commandant L’Herminier F 791 FS Commandant L’Herminier F 791 FS Commandant L’Herminier F 791 FS Commandant L’Herminier F 791 FS Commandant L’Herminier F 792 FS Premier-Maitre L’Her F 792 FS Premier-Maitre L’Her F 792 FS Premier-Maitre L’Her F 792 FS Premier-Maitre L’Her F 792 FS Premier-Maitre L’Her F 792 FS Premier-Maitre L’Her F 792 FS Premier-Maitre L’Her F 793 FS Commandant Blaison F 793 FS Commandant Blaison F 793 FS Commandant Blaison F 793 FS Commandant Blaison F 793 FS Commandant Blaison F 793 FS Commandant Blaison F 793 FS Commandant Blaison F 793 FS Commandant Blaison F 793 FS Commandant Blaison F 793 FS Commandant Blaison F 793 FS Commandant Blaison F 793 FS Commandant Blaison F 794 FS Enseigne de vaisseau Jacoubet F 794 FS Enseigne de vaisseau Jacoubet F 794 FS Enseigne de vaisseau Jacoubet F 794 FS Enseigne de vaisseau Jacoubet F 794 FS Enseigne de vaisseau Jacoubet F 794 FS Enseigne de vaisseau Jacoubet F 794 FS Enseigne de vaisseau Jacoubet F 794 FS Enseigne de vaisseau Jacoubet F 794 FS Enseigne de vaisseau Jacoubet F 794 FS Enseigne de vaisseau Jacoubet F 794 FS Enseigne de vaisseau Jacoubet F 795 FS Commandant Ducuing F 795 FS Commandant Ducuing F 795 FS Commandant Ducuing F 795 FS Commandant Ducuing F 795 FS Commandant Ducuing F 795 FS Commandant Ducuing F 795 FS Commandant Ducuing F 795 FS Commandant Ducuing F 795 FS Commandant Ducuing F 796 FS Commandant Birot F 796 FS Commandant Birot F 796 FS Commandant Birot F 796 FS Commandant Birot F 796 FS Commandant Birot F 796 FS Commandant Birot F 796 FS Commandant Birot F 796 FS Commandant Birot F 797 FS Commandant Bouan F 797 FS Commandant Bouan F 797 FS Commandant Bouan F 797 FS Commandant Bouan F 797 FS Commandant Bouan F 797 FS Commandant Bouan F 797 FS Commandant Bouan F 797 FS Commandant Bouan F 797 FS Commandant Bouan |
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