Navarra (F85) is the fifth of the six Spanish-built Santa Maria-class frigates of the Spanish Navy, which are based on the American Oliver Hazard Perry-class design.
The Harpoon missiles have a range of 50 nmi (93 km; 58 mi) at Mach 0.9 carrying a 227-kilogram (500 lb) warhead.
The vessels also mount a single OTO Melara 76-millimetre (3.0 in)/62 calibre naval gun capable of firing 85 rounds per minute up to 8.7 nmi (16.1 km; 10.0 mi) with each shell carrying a 6 kg (13 lb) warhead.
[1][a] For AAW defence, the ships mount a single Meroka 20 mm (0.79 in)/120 12-barrelled close-in weapons system (CIWS) capable of firing 3,600 rounds per minute up to 2 km (1.2 mi).
[4] As long-hulled versions of the Oliver Hazard Perry class, the Santa María-class frigates have twin hangars to accommodate up to two Sikorsky SH-60B Seahawk Light Airborne Multi-Purpose System (LAMPS) III helicopters though only one is usually embarked.
[4] On 9 December 2002, Navarra intercepted the unflagged freighter So San several hundred miles southeast of Yemen at the request of the United States government, possibly associated in some fashion with the U.S.
Yemen claimed ownership of the shipment and protested the interception and U.S. officials released the vessel after receiving assurances that the missiles would not be transferred to a third party.
[9] In November 2016, while patrolling off the Libyan coast as part of the EUNAVFOR's Operation Sophia, the frigate recovered 227 migrants from inflatable boats in the Mediterranean Sea.