The gunboat class Osprey 55 is a Danish

Denmark

Denmark is a Scandinavian country in Northern Europe. The countries of Denmark and Greenland, as well as the Faroe Islands, constitute the Kingdom of Denmark . It is the southernmost of the Nordic countries, southwest of Sweden and south of Norway, and bordered to the south by Germany. Denmark...

-designed class of naval ship currently in service in the Hellenic Navy

Hellenic Navy

The Hellenic Navy is the naval force of Greece, part of the Greek Armed Forces. The modern Greek navy has its roots in the naval forces of various Aegean Islands, which fought in the Greek War of Independence...

. Two ships were ordered in March 1988. The first one was laid down on 8 May 1989 and launched on 19 December 1989. The second ship was laid down on 9 November 1989 and launched on 16 May 1990. Armament is of modular design and therefore can be changed. 76-mm guns replaced the Bofors 40-mm in 1995, after being taken from decommissioned Gearing-class destroyers

Gearing class destroyer

The Gearing class was a group of 98 destroyers built for the US Navy during and shortly after World War II. The Gearing design was a minor modification of the immediately preceding Allen M. Sumner class...

. Options on more of the class were shelved in favour of the Gunboats Class HSY-55.

Ships

• Armatolos (P 18), commissioned 27 March 1990
• Navmachos (P 19), commissioned 15 July 1990

Specifications

• Displacement, full load: 563.8 tonnes
• Length: 54.8 m
• Beam: 10.5 m
• Draught: 2.6 m
• Range: 500 NM
  Nautical mile
  The nautical mile is a unit of length that is about one minute of arc of latitude along any meridian, but is approximately one minute of arc of longitude only at the equator...
  
  
• Speed: 25 kn
• Main machinery: 2 MTU
  MTU
  MTU may refer to:Networks and Internet* Maximum transmission unit, the size of the largest packet that a network protocol can transmit* Multi tenant unit, a telecom term referring to a building with multiple offices or apartments...
  
   16V 1163 TB63 diesels; 10,000 hp
  Horsepower
  Horsepower is the name of several units of measurement of power. The most common definitions equal between 735.5 and 750 watts.Horsepower was originally defined to compare the output of steam engines with the power of draft horses in continuous operation. The unit was widely adopted to measure the...
  
  (m) (7.3 MW) sustained; 2 shafts; Kamewa cp props.
• Speed: 25 kn
• Range: 500 NM at 25 kn; 2,800 NM at 12 kn
• Crew: 36, plus 25 troops.
• Missiles: SSM: 4 Boeing Harpoon
  Boeing Harpoon
  The Harpoon is an all-weather, over-the-horizon, anti-ship missile system, developed and manufactured by McDonnell Douglas . In 2004, Boeing delivered the 7,000th Harpoon unit since the weapon's introduction in 1977...
  
   (can be fitted).
• Guns: 1 Oto Melara 76 mm/62 compact, 1 Bofors 40 mm/70.
• Mines: Rails.
• Countermeasures: Decoys: 2 chaff launchers.
• ESM: Thomson-CSF DR 2000S; intercept.
• Weapons control: Selenia Elsag NA 21.
• Radars: Surface search: Thomson-CSF Triton; G-band.
• Fire control: Selenia RTNX; I/J-band.