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Tromp-class frigate

Class of Dutch frigates

Summary

Class of Dutch frigates

Field	Value
section1	{{Infobox ship/image
image	F801 Tromp ca 1995.jpg
image_caption	HNLMS Tromp in 1995
section2	{{Infobox ship/class overview
name	Tromp class
builders	Koninklijke Maatschappij De Schelde
operators
class_before	De Zeven Provinciën-class
class_after
built_range	1971–1974
in_commission_range	1975–2000
total_ships_completed	2
total_ships_retired	2
section3	{{Infobox ship/characteristics
header_caption
type	Frigate
displacement	*4308 LT standard
*{{convert	5400	LT	t	0	abbr	on}} full load
length	138.4 m
beam	14.8 m
draught	4.6 m
propulsion	*2 shaft COGOG
*Rolls-Royce Olympus gas turbine {{convert	54000	hp	0	abbr	on}}
*Rolls-Royce Tyne gas turbine {{convert	8200	hp	0	abbr	on}}
speed	*30 kn maximum
range	5000 nmi at 18 kn
complement	306
sensors	*AN/SPS-01 3D air search radar
EW	*RAMSES jammer
armament	*1 × Mark 13 launcher for Standard SAM (40 reload missiles)
*1 × Goalkeeper<ref name	"GCB276" / short-range defence-system
aircraft	1 × Westland WG-13 Lynx Mk.25/27/81/SH-14D maritime helicopter
aircraft_facilities	1 helicopter pad & hangar

5400 LT full load
Rolls-Royce Olympus gas turbine 54000 hp
Rolls-Royce Tyne gas turbine 8200 hp
18 kn cruising
Decca 1226 navigation radar
WM-25 fire control radar
AN/SPG-51C fire control radar
CWE-610 bow sonar
Type 162 bottom search sonar
Mk.36 SBROC
1 × Mark 29 (octuple) Sea Sparrow SAM (16 missiles)
8 × Mark 141 launcher for RGM-84 Harpoon SSM
2 × 120 mm Bofors guns (1 twin turret – turrets were salvaged from HNLMS Gelderland , a Holland class destroyer)
2 × Triple anti-submarine torpedo tubes
1 × Goalkeeper short-range defence-system The Tromp class were two frigates built for the Royal Netherlands Navy during the 1970s to replace the s as squadron flagships.

The Tromp-class frigates entered service in 1975 and 1976 and served until 1999 and 2001. Both ships were built by Royal Schelde Shipyard in Flushing (Vlissingen). The ships served as fleet flagships and area air defence vessels. Their 3D radar under a large polyester radome gave the ships the nickname "Kojak" in the Netherlands Navy. Originally the ships were to have the British Sea Dart missile system, but this was changed to the more compact American Standard surface-to-air missile.

The ships were replaced by the s. A total of four new frigates have been built, including two also named and .

Design

Armament

The Tromp class frigates were armed with twin (1x2) Bofors 120 mm automatic naval guns with each gun being able to fire 38 to 42 shots per minute at a maximum distance of 21.6 kilometers. Initially the British 4.5-inch naval gun and French 100 mm naval gun were also considered, alongside the Bofors guns. However, as a result of austerity measures it was decided that the Bofors guns were a better option financially. The Bofors guns were refurbished naval guns that had been removed from the HNLMS Gelderland. Before installation they were extensively modified and modernized with the help of Wilton-Fijenoord. This resulted in the naval guns becoming considerable more accurate.

Service history

In 1977 and 1979 the aluminium deckhouses on both ships were repaired at the shipyard of Koninklijke Maatschappij De Schelde after cracks had been found. As a result all succeeding frigates of the Royal Netherlands Navy had deckhouses made of steel.

In July 1981 the Soviet aircraft carrier Kiev entered the North Sea and was escorted by both ships of the Tromp-class.

Between 1981 and 1982 Fokker delivered 3 new large radomes for the Tromp-class frigates (one for each ship and one for reserve).

Ships

''Tromp'' in convoy with several others in 1992.

Name	Pennant	Builder	Laid down	Launched	Commissioned	Fate
	F801	KM de Schelde, Vlissingen	4 August 1971	2 June 1973	3 October 1975	decommissioned 1999. Her gun has been preserved by the Dutch Navy Museum.
	F806	KM de Schelde, Vlissingen	22 December 1971	9 March 1974	3 June 1976	decommissioned 2001. Her bridge and radar have been preserved by the Dutch Navy Museum in Den Helder, North Holland.

Notes

Citations

Bibliography

References

Grove (1990), p. 97.
Nooteboom (2001), p. 181.
Woudstra (1982), p. 72.
van Beveren, Arthur. (17 September 2024). "Materieel van toen: Bofors kanon van 12 cm, nummer 10". Defensie.nl.
Nooteboom (2001), p. 126.
. (18 September 2023). ["Trompklasse/ Geleide-wapenfregatten (Nederland)"](https://marineschepen.nl/schepen/tromp.html).
Gardiner, Chumbley and Budzbon (1995), p. 276.
. (2 November 1978). ["Marine-fregatten vertonen scheuren"](https://resolver.kb.nl/resolve?urn=ABCDDD:010823890:mpeg21:a0282). *Trouw*.
Nooteboom (2001), p. 117.
. (30 July 1981). ["Koerswijziging"](https://resolver.kb.nl/resolve?urn=ddd:010570348:mpeg21:p003). *Limburgsch dagblad*.
. (30 July 1981). ["Marine houdt Russisch konvooi in de gaten"](https://resolver.kb.nl/resolve?urn=ABCDDD:010847220:mpeg21:p001). *Het Parool*.
. (10 March 1981). ["Fokker-Ypenburg levert marine radarkoepels"](https://resolver.kb.nl/resolve?urn=KBNRC01:000027350:mpeg21:a0155). *NRC Handelsblad*.

Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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