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Thetis-class gunboat

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The Thetis-class gunboats was a class of five naval ships of the Hellenic Navy, originally developed for the German Navy as Class 420 and first commissioned in 1961.

HS Agon
Class overview
Operators
Completed5
Retired5
General characteristics
TypeGunboat/Subchaser
Displacement584.2/743.7 tonnes
Length70 m (229 ft 8 in)
Beam8.2 m (26 ft 11 in)
Draught2.7 m (8 ft 10 in)
Propulsion2 MAN V84V diesels; 6,800 hp(m) (5 MW); 2 shafts
Speed19.5 knots (36.1 km/h) maximum
Range2,760 nmi (5,110 km) at 15 knots (28 km/h)
Complement57-62
Sensors and
processing systems
  • Search radar: Thomson-CSF TRS 3001; E/F-band.
  • Navigation radar: Kelvin Hughes 14/9; I-band.
  • Sonar: Atlas Elektronik ELAC 1 BV (hull-mounted).
Electronic warfare
& decoys		Thomson-CSF DR 2000S ESM
Armament
  • Guns: Two twin Bofors L70/Breda 40 mm/70); Two Rheinmetal 20 mm.
  • Torpedoes: Six 324-mm Mk 32 (2 triple) tubes; 4 Honeywell Mk 46 Mod 5
  • Missiles: Three portable FIM-92 Stinger launchers.
  • Depth charges: 2 rails
  • Weapons control: Signaal Mk 9 TFCS

Design

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Similar in size to corvettes, all five Class 420/Thetis-class vessels were built by Rolandwerft, Bremen. Although they were designed, built, and designated as Subchasers by the German Navy, subchasers became obsolete after the Second World War due to being unable to keep pace with advancements in submarine technology. Because the ships were designed to chase more modern submarines, they are more commonly referred to as gunboats.

The main armament of Thetis-class ships consisted of 20 mm and 40 mm guns, Mk 46 Mod5 torpedoes and mines and anti-submarine (A/S) mortars. The ships were also equipped with sonar. Later the A/S mortars were replaced by a second 40 mm gun and the single torpedo tubes by triple mountings. Upgrades started in 2000 may have included enclosed 40 mm gun mountings[citation needed] and Rheinmetall 20 mm guns to replace the MGs. The last two ships of the class were decommissioned on 22 April 2010.

Ships in class

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  • Niki, P62 ("Victory", ex-Thetis, P 6052): commissioned in the German Navy on 1 July 1961, recommissioned in the Hellenic Navy on 6 September 1991, decommissioned on 2 April 2009.[1][2]
  • Doxa, P63 ("Glory", ex-Najade, P 6054): commissioned in the German Navy on 12 May 1962, recommissioned in the Hellenic Navy on 6 September 1991, decommissioned on 22 April 2010.[1][3][4]
  • Eleftheria, P64 ("Liberty", ex-Triton, P 6055): commissioned in the German Navy on 10 November 1962, recommissioned in the Hellenic Navy on 7 September 1992, decommissioned on 22 April 2010.[1][5]
  • Karteria, P65 ("Perseverance", ex-Hermes, P-6053): Commissioned in the German Navy in 1962, recommissioned in the Hellenic Navy on 7 September 1992, decommissioned in 2004.[1][6]
  • Agon, P66 ("Struggle", ex-Theseus, P 6056): commissioned in the German Navy in 1962, recommissioned for Hellenic Navy in the 8 November 1993, decommissioned in 2004, used as target and sunk with two Penguin missiles on 21 October 2008.[1][7][8]

References

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  1. ^ a b c d e Vice Admiral C. Paizis-Paradellis, HN (2002). Hellenic Warships 1829-2001 (3rd ed.). Athens, Greece: The Society for the study of Greek History. pp. 27, 61, 63, 90, 131. ISBN 960-8172-14-4.
  2. ^ HS Niki on Hellenic Navy website
  3. ^ HS Doxa on Hellenic Navy website
  4. ^ 27/4/2010 Παροπλισμος Κανονιοφόρων ΔΟΞΑ και ΕΛΕΥΘΕΡΙΑ Archived 2011-06-14 at the Wayback Machine
  5. ^ HS Eleftheria on Hellenic Navy website
  6. ^ HS Karteria on Hellenic Navy website
  7. ^ "DefenceNet - Βολές του Πολεμικού Ναυτικού". Archived from the original on 2009-05-04. Retrieved 2008-10-24.
  8. ^ HS Agon on Hellenic Navy website
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