Alvand-class frigate

Alborz (72) and Sabalan (73) sailing together
Class overview
NameAlvand / Saam class
BuildersVosper Thornycroft, Vickers
Operators
Succeeded byMoudge class
Built1968–1972
In service1971–present
Completed4
Active3
Lost1
General characteristics
TypeFrigate
Displacement1,100 tons (1,540 tons full load)
Length94.5 m (310 ft)
Beam11.07 m (36.3 ft)
Draught3.25 m (10.7 ft)
Propulsion2 Paxman Ventura cruising diesels 3,800 bhp (2,800 kW), and 2 Rolls-Royce Olympus TM2 boost gas turbines 46,000 shp (34,000 kW) on 2 shafts
Speed17 knots (31 km/h) on diesels; 39 knots (72 km/h) on gas turbines
Range5,000 nmi (9,000 km) at 15 knots (28 km/h)
Complement125-146
Armament

The Alvand class (Persian: کلاس الوند) or Saam class (Persian: کلاس سام) was originally a class of four frigates built for the Imperial Iranian Navy. They were renamed after the Iranian Revolution, and served in the Islamic Republic of Iran Navy during Iran-Iraq War. Three still remain in service. A fourth was sunk by the U.S. Navy in 1988.