![]() These are energised by three Astazou IVB gas turbine alternators rated at 150 kW. For use when minehunting the vessels have two 180 kW (240 hp) ACEC active rudders and a bow thruster. ![]() Using the conventional system, the minehunters have a maximum speed of 15 knots (28 km/h 17 mph) and a range of 3,000 nautical miles (5,600 km 3,500 mi) at 12 knots (22 km/h 14 mph). In normal operations the minehunters are powered by a 1,400- kilowatt (1,900 bhp) Brons-Werkspoor (later Wärtsilä) A-RUB 215V-12 diesel engine turning one shaft with a LIPS controllable pitch propeller. The Éridan-class minehunters have two independent propulsion systems. The minehunters had an initial complement of 55, this was later reduced to 49. A 5.1 tonnes (5 long tons) container can be stored aboard the ships for additional supply room. This later increased to 625 t (615 long tons) at full load. The ships had a standard displacement of 571 tonnes (562 long tons) and 605 t (595 long tons) at full load. The hulls were 51.6 metres (169 ft 3 in) long overall with a beam of 8.9 metres (29 ft 2 in) and a draught of 3.8 metres (12 ft 6 in). Each hull was created from fibreglass, moulded in a steel shell. In France the class is known as the Éridan class. Sagittaire (left) with USS Sentry (rear) and HMS Shoreham (front) in the Persian Gulf However, France cut their initial order to ten due to budgetary reasons. Each country intended to order 15 of the vessels, with Belgium's initial order being 10 with the option of 5 more. All three nations would build their own hulls while each country was responsible for a different aspect of the vessels France provided the minehunting and electronic systems, the Netherlands provided the main propulsion systems and Belgium supplied the minehunting propulsion system as well as the electrical generating systems. The Netherlands and Belgium had a competition in 2018 to build a replacement class for their Tripartite/ Alkmaar-class ships.Ī joint venture of the navies of France, Belgium, and the Netherlands, the Tripartite class of minehunters were a follow on design to the French Circé-class minesweepers. The Bulgarian Navy acquired a former Belgian minehunter in 2007. In 2007, the Latvian Naval Forces acquired five ships from the Netherlands which had been taken out of service at the beginning of the decade. In 1997, France purchased three of the Belgian vessels. Known as the Pulau Rengat class, the two ships are still in service. The Indonesian Navy acquired two minehunters in the 1990s from the Dutch to a modified design. Known as the Munsif class, all three are still in service. In 1992, the Pakistan Navy acquired three vessels from France, one that was already built, one to be built in France and one built in France and Pakistan. In France, where they are known as the Éridan class they are primarily used as minehunters, but have been used for minesweeping and ammunition transport in Belgium and the Netherlands, where the Tripartites are known as the Alkmaar class. The class was constructed in the 1980s–1990s in all three countries, using a mix of minehunting, electrical and propulsion systems from the three member nations. A total of 35 ships were constructed for the three navies. The Tripartite class is a class of minehunters developed from an agreement between the navies of Belgium, France and the Netherlands. 1 × Brons-Werkspoor A-RUB 215V-12 diesel engine.General characteristics of French ships as built Vlissingen class - Royal Netherlands Navy.
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