NAVYPEDIA

Photo

Maasluis 2008

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Alkmaar	M850	M850	Van der Giessen de Noord, Alblasserdam	30.1.1979	18.5.1982	28.5.1983	stricken 5.2000, to Latvia (Rūsiņš)
Defzijl	M851	M851	Van der Giessen de Noord, Alblasserdam	29.5.1980	29.10.1982	17.8.1983	stricken 6.2000, to Latvia (Visvaldis)
Dordrecht	M852	M852	Van der Giessen de Noord, Alblasserdam	5.1.1981	26.2.1983	16.11.1983	stricken 7.2000, to Latvia (Tālivaldis)
Haarlem	M853	M853	Van der Giessen de Noord, Alblasserdam	16.6.1981	9.7.1983	12.1.1984	stricken 12.2011
Harlingen	M854	M854	Van der Giessen de Noord, Alblasserdam	30.11.1981	9.7.1983	12.4.1984	stricken 1.2004, to Latvia (Imanta)
Scheveningen (ex-Hellevoetsluis)	M855	M855	Van der Giessen de Noord, Alblasserdam	24.5.1982	2.12.1983	18.7.1984	stricken 12.2002, to Latvia (Viesturs)
Maasluis	M856	M856	Van der Giessen de Noord, Alblasserdam	7.11.1982	5.5.1984	12.12.1984	stricken 5.2011
Makkum	M857	M857	Van der Giessen de Noord, Alblasserdam	28.2.1983	27.9.1984	13.5.1985	in service (2019)
Middelburg	M858	M858	Van der Giessen de Noord, Alblasserdam	11.7.1983	18.2.1985	10.12.1986	stricken 12.2011
Hellevoetsluis (ex-Scheveningen)	M859	M859	Van der Giessen de Noord, Alblasserdam	12.12.1983	18.7.1985	20.2.1987	stricken 12.2011
Schiedam	M860	M860	Van der Giessen de Noord, Alblasserdam	6.5.1984	26.4.1986	9.7.1986	in service (2019)
Urk	M861	M861	Van der Giessen de Noord, Alblasserdam	30.9.1984	4.10.1986	10.12.1986	in service (2019)
Zierikzee (ex-Veere)	M862	M862	Van der Giessen de Noord, Alblasserdam	25.2.1985	4.10.1986	7.5.1987	in service (2019)
Vlaardingen	M863	M863	Van der Giessen de Noord, Alblasserdam	29.3.1985	23.7.1987	26.3.1988 // ---	incomplete to Indonesia 1985 (Pulau Rengat)
Vlaardingen	M863		Van der Giessen de Noord, Alblasserdam	6.5.1986	6.8.1988	15.3.1989	in service (2019)
Willemstad	M864	M864	Van der Giessen de Noord, Alblasserdam	22.7.1985	27.8.1987	14.10.1988 // ---	incomplete to Indonesia 1985 (Pulau Rupat)
Willemstad	M864		Van der Giessen de Noord, Alblasserdam	3.10.1986	27.1.1989	20.9.1989	in service (2019)

Technical data

Data variant	Dutch ships	Indonesian ships
Displacement standard, t	510	510
Displacement normal, t	595	588
Length, m	47.1 pp 51.5 oa	47.1 pp 51.5 oa
Breadth, m	8.90	8.90
Draught, m	2.47 hull 3.80 max	2.47 hull 3.50 max
No of shafts	1 + 2 Schottel active rudders	2 + 2 Schottel active rudders
Machinery	1 Werkspoor-Wärtsilä A-RUB215 V12 diesel	2 MTU 12V396 TC Db51 diesels + 2 electric motors
Power, h. p.	1900 + 240	2400 + 240
Max speed, kts	15	15.5
Fuel, t	diesel oil	diesel oil
Endurance, nm(kts)	3000(12)	3000(12)
Armament	1 x 1 - 20/90 20F-2, 2x PAP-104 Mk 5 USV, OD-3 mechanical minesweeping gear	2 x 1 - 20/85 S.20, 2x PAP-104 Mk 5 USV, OD-3 mechanical, F-82 magnetic, AS203 acoustic minesweeping gear
Electronic equipment	Decca 1229 radar, DUBM-21B sonar	Decca 1229 radar, TSM2022 sonar, SEWACO-RI CCS
Complement	34 - 42	45

Standard scale images

Graphics

Project history

The 'Tripartite' minehunter was developed as a collaborative project with Prance and Belgium. Each navy built its own hulls, while other equipment was subcontracted to each of the three countries involved. The Netherlands was responsible for the main propulsion system, which underwent extensive testing testing following the determination of acoustic performance specifications at the Netherlands Ship Model Basin. The Werkspoor supercharged diesel, the reduction gearing, the Lips CP propeller, the machinery control and the air-conditioning system are all of Netherlands manufacture.

A 5t modular van abaft the superstructure can contain a decompression station, communications equipment, or drone control gear.

Modernizations

1999-early 2000s, all survived: - Decca 1229 radar; + Selesmar MM950 radar

2004-2009, all survived: - 2x PAP-104 USV, DUBM-21B sonar; + 2x Sea Fox USV, TSM2022 Mk 3, PVDS sonars, IMCMS CCS

early 2010s, all survived: - 1 x 1 - 20/90; + 3 x 1 - 12.7/90

Naval service

No significant events.