NAVYPEDIA

Photo

Zwaardvis 1979 Many thanks to Wolfgang Stöhr for additional information on this page.  

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comm	Fate
Zwaardvis	S806	320	Rotterdamse Droogdok Mij	14.7.1966	2.7.1970	18.8.1972	stricken 7.1994
Tijgerhaai	S807	321	Rotterdamse Droogdok Mij	14.7.1966	25.5.1971	20.10.1972	stricken 8.1995

Technical data

Displacement standard, t	2350
Displacement normal, t	2408 / 2640
Length, m	66.9
Breadth, m	8.40
Draught, m	7.10
No of shafts	1
Machinery	3 Werkspoor RUB215X12 diesel-generators, 1 Holec electric motor
Power, h. p.	4200 / 5100
Max speed, kts	13 / 20
Fuel, t	diesel oil
Endurance, nm(kts)	10000(9) (snorkel) /
Armament	6 - 533 TT (bow, 20 Mk 48/37 torpedoes)
Electronic equipment	ZW-06 radar, sonars, ECM suite, M8 CCS
Complement	67
Diving depth operational, m	220

Standard scale images

Graphics

Project history

These boats were closely based on the US Barbel class. They were single-hulled, with three decks amidships housing the control spaces, accommodation for the crew, and the batteries respectively. The forward section accommodated the sonars, torpedo tubes and the torpedo handling room. The after section housed the machinery: three diesel generators with a single large electric motor abaft them, coupled to a single shaft. All machinery was mounted on a false deck with spring suspension. In accordance with contemporary US practice, these boats had cruciform after control surfaces and fin-mounted diving planes.

As much Netherlands-manufactured equipment as possible was incorporated. The HSA M8 Mod 7 fire control system, which used a digital computer, permitted the simultaneous launching of two torpedoes, one of which may be wire-guided.

Modernizations

1986, Zwaardvis; 1987, Tijgerhaai: - sonars; + Octopus, type 2026, DUUX-5 sonars

Naval service

No significant events.