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Kaivan-class patrol craft
Kaivan-class vessels.jpg
Class overview
Builders: USCG, Curtis Bay
Operators: Islamic Republic of Iran Navy
In service: 1956–present
Completed: 4
Active: 3
Lost: 1
General characteristics
Type: Large patrol craft
Displacement:
  • 98/100 tons standard
  • 148/150 tons full load
Length: 28.9 m (94 ft 10 in)
Beam: 6.2 m (20 ft 4 in)
Draught: 1.8–2 m (5.9–6.6 ft)
Installed power: Diesel
Propulsion:
  • 2 or 4 × NYHMS-1200 engines, 2,120 horsepower (1.58 MW)
  • 2 × shafts
Speed: 15–21 kn (28–39 km/h)
Range:
  • 2,324 nmi (4,304 km) at 8 knots (15 km/h)
  • 1,500 nmi (2,800 km) at 15 knots (28 km/h)
Complement: 15

The Kaivan (Persian: کیوان‎) is a class of large patrol craft operated by the Islamic Republic of Iran Navy. They ships in the class are modified versions of the American Cape-class vessels, built by the United States Coast Guard Yard in the 1950s.

Design[]

Sources cite displacement of Kaivan class vessels slightly different. According to Jane's Fighting Ships, the ships have a standard displacement of 100 tonnes (98 long tons) and 150 t (150 long tons) at full load.[1] Conway's All the World's Fighting Ships puts the numbers at 98 tonnes (96 long tons) and 148 tonnes (146 long tons) for standard and full load displacements respectively.[2] Combat Fleets of the World mentions only 85 tonnes (84 long tons).[3] The class design is 28.9 m (95 ft) long, would have a beam of 6.2 m (20 ft) and a draft of 2 m (6 ft 7 in).[1][2] The length is also recorded 29 m (95 ft).[3]

Ships in the class[]

The ships in the class are:[1][2]

Ship Pennant number Commissioned Status
IRIS Kaivan 201 (ex-61) 14 January 1956 In active service
IRIS Tiran 202 (ex-62) 1957 In active service
IRIS Mehran 203 (ex-63) 1959 Sunk in 1980 or 1981
IRIS Mahan 204 (ex-64) 1959 In active service

References[]

  1. 1.0 1.1 1.2 Saunders, Stephen; Philpott, Tom, eds (2015). "IHS Jane's Fighting Ships 2015–2016". Coulsdon: IHS Jane's. p. 389. ISBN 9780710631435. OCLC 919022075. 
  2. 2.0 2.1 2.2 "Conway's All the World's Fighting Ships: 1947–1995". Conway Maritime Press. 1996. pp. 187. ISBN 978-1557501325. 
  3. 3.0 3.1 Couhat, Jean Labayle, ed (1986). "Combat Fleets of the World 1986/87: Their Ships, Aircraft, and Armament". Annapolis, Maryland: Naval Institute Press. p. 255. ISBN 0-85368-860-5. https://archive.org/details/CombatFleetsOfTheWorld198687. 


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