Alvand class frigate

Alvand class frigate
A starboard beam view of an Iranian Alvand class frigate underway.
A starboard view of the Iranian destroyer escort IIS Saam (DE-71), redesignated IS Alvand (F-71)
Class overview
Builders: Vosper Thornycroft
Vickers
Operators: Iran
Succeeded by: Moudge class frigate
Building: 0
Completed: 4
Active: 3
Lost: 1
General characteristics
Displacement: 1,100 tons (1,540 tons full load)
Length: 94.5 m (310 ft)
Beam: 11.07 m (36 ft)
Draft: 3.25 m (10.5 ft)
Propulsion: 2 Paxman Ventura cruising diesels 3,800  bhp, and 2 Rolls Royce Olympus TM-3A boost gas turbines 46,000 shp (34,000 kW) on 2 shafts
Speed: 17 knots (31 km/h) on diesels39 knots (72 km/h) on gas turbines
Range: 5,000 nmi (9,000 km) at 15 knots (28 km/h)
Complement: 125-146
Armament: 4 x C-802 anti-ship missiles
1 × 4.5 inch (114 mm) Mark 8 gun
1 x twin 35 mm AAA, 2 x single 20 mm AAA
2 × 81 mm mortars
2 × 0.50cal machine guns
1 x Limbo ASW mortar
2 x triple 12.75 in torpedo tubes

The Alvand class (also called the Saam class frigate or the 'Vosper Mk 5 type) comprise four Iranian light patrol frigates. Only three are currently in service.

All four ships were originally named after characters from Ferdowsi's Shahnameh, but after the Islamic Revolution they were renamed after mountains in Iran.

The United Kingdom built all four ships which were originally armed with nine Sea Cat anti-air missiles and five Sea Killer anti-ship missiles. The Iranian Navy has since replaced these missiles with Chinese equivalents.

One Alvand-class frigate, the Sahand, was sunk by U.S. forces during Operation Praying Mantis in 1988 after unsuccessfully firing upon an A-6 Intruder flying from the USS Enterprise. It was then struck by Harpoon missiles from this aircraft, and then a coordinated Harpoon attack from its wingman and a nearby surface ship.

Ships in the class

Ship Pennant Number Builder Launched Status
Alvand - ex-Saam 71 (ex- DE 12) Vosper Thornycroft 1968 In Service
Alborz - ex-Zaal 72 (ex DE 14) Vickers 1969 In Service
Sabalan- ex-Rostam 73 (ex DE 16) Vickers 1969 In Service
Sahand - ex-Faramarz 74 (ex DE 18) Vosper Thornycroft 1969 sunk on April 18, 1988

See also

External links

Sources

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Alvand-class frigate

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