Angamos

Class overview
Name: Saar 4
Operators: ? Israeli Navy
? Chilean Navy
? South African Navy
? Sri Lanka Navy
? Hellenic Coast Guard

Preceded by: Sa'ar 3-class missile boat

Succeeded by: Sa'ar 4.5-class missile boat

General characteristics
Type: Missile boat

Displacement: 415 tons (450 tons full loaded)
Length: 58 m (190 ft)
Beam: 7.62 m (25.0 ft)
Draught: 2.4 m (7.9 ft)
Propulsion: 4 MTU 16V 538 diesel engines, four shafts, total of 12,800 hp (9,500 kW)

Speed: 34 knots (63 km/h; 39 mph)
Range: ? 4,000 nmi (7,400 km; 4,600 mi) at 17.5 kn (32.4 km/h)
? 1,650 nmi (3,060 km; 1,900 mi) at 30 kn (56 km/h; 35 mph)
Complement: 45 officers and crewmen
Sensors and
processing systems: ? Elta EL/M-2207/2208 air & surface search radar[1]
? Selenia Orion RTN-10X fire-control radar

Electronic warfare
& decoys: ? 1 ? 45-tube, 4-6 x 24-tubes and 4 single chaff rocket launchers
? Elisra NS-9003/9005 RWR

Armament: ? 2-4 x RGM-84 Harpoon SSM's
? and
? 4 ? Gabriel II SSM's
? OR
? 6 ? Gabriel II SSM's
? 1 ? 20 mm Phalanx CIWS
? and
? 1 ? OTO Melara 76 mm naval gun
? OR
? 2 ? OTO Melara 76 mm naval gun
? 2 ? Oerlikon 20 mm cannons

The Sa'ar 4 or Reshef class missile boats were built based on Israeli Navy designs grounded in accumulated experience derived in the operation of "Cherbourg" (Sa'ar 1, Sa'ar 2, and Sa'ar 3) classes. Thirteen were built at the Israel Shipyards, ten for the Israeli Navy and three for the South African Navy. Another six were built for the South African Navy in South Africa with Israeli assistance.
Sa'ar 4 boats' first battle engagements occurred in the October 1973 Yom Kippur War when two Sa'ar 4 boats, INS Reshef and INS Keshet, engaged Egyptian and Syrian ships and coastal targets. Israel had sold most of its Sa'ar 4 boats to other navies, but INS Nitzachon and INS Atzmaut remained in active Israeli Navy service until 2014.
Variants
Israel
Ten Sa'ar IV class boats were built for the Israeli Navy. As of 2013 only two remain in service. Three were disassembled, with systems taken for use in the construction of Sa'ar 4.5 class vessels. Three vessels and one hull stripped of systems were sold to Chile. Two vessels were sold to Sri Lanka.

INS Reshef Spark Launched in 1973.
Commissioned on February 1973. Sold to Chile in 1997 as LM-34 Angamos. Sold