Princesa Gloria class

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SGB Princesa Amaya, Princesa Gloria class training corvette.jpg
ARC Aleta off the Antoran coast, 2021
Class Overview
Builders: Arsenale Corric, Arma Nautico
Operators: Royal Antoran Armada
Class before: Cuerno class
Class after: Princípe Jerónimo class
Built range: 1972–1980
In commission: 1978–present
Ships completed: 6
Ships active: 4
Retired: 2
General characteristics
Type: Corvette
Displacement: 1,127.2 long tons
Length: 64.16 m
Beam: 10 m
Draft: 3.28 m
Installed power:

1 × 550KW GSEB K55 diesel generator

1 × 200KW Solaris 105B001 gas generator
Propulsion: 2 × 2,500 hp 1,864 kW GSEB 25Q diesel engines
Speed: 23 kn (43 km/h; 26 mph)
Range: 8,000 nmi (15,000 km; 9,200 mi)
Boats & landing
craft carried:
2 boats
Complement: 75
Sensors and
processing systems:

Block 1

SVA/G13 3D radar

SVA 8 surface-search radar

Block 2

SVA/G14 3D radar

SVA 10 surface-search radar

SSCA 20 fire-control radar

SSPP 8D sonar array
Electronic warfare
& decoys:

Block 2

1 × Lima Alto Supra-SIGEN EWAR system

1 x OJO onboard decoy launching systems (ODLS)
Armament:

Block 1

1 × HerCan Víbora 30 mm autocannon

2 × 12.7mm machine guns

Block 2

1 × Arsenale Corric MK975 57 mm gun

4 × 12.7mm machine guns

2 x 324 mm torpedo tubes

Patrol Refit

1 × HerCan Víbora-Quatro quad 30 mm autocannon

2 × 12.7mm machine guns
Aviation facilities: Helipad

The Princesa Gloria class of corvettes is a series of six warships built by Arsenale Corric with subcontracting done by Arma Nautico for the Royal Antoran Armada. These ships were designed as part of the Proyécto de Equipamíento Navál Interoperáble (Interoperable Naval Equipment Project) along with the Rége Julían class frigates and Princesa Alandra class fast attack craft, with the intention to serve as medium-range gunboats and anti-submarine vessels. Work began on their construction in Porto Armada in 1972; however, design work by Arma Nautico engineers had resulted in severe deficiencies in the vessels. The helicopter deck was too long, wasting space that could have been filled by a hangar, gunwhales were made too high for the installation of torpedo tubes, and the inclusion of an ammunition magazine for the deck gun was not considered when designing forward compartments. As a result, the Princesa Gloria class failed to meet the stated requirements of the contract issued by the Armada. The first two ships, completed in 1976 and 1977 to the deficient standards, were never commissioned. They were immediately put into reserve, and in 1979, sold to Älemsi Negdel.

The remaining four ships were completely refitted by Arsenale Corric to comply with the contract requirements. These vessels, in their "Block 2" configuration, were still far short of the capabilities intended in the Interoperable Project. The Armada admiralty relegated them to the Deterrent Fleet and Patrol Fleet instead of the pre-planned postings in the Attack Fleet with the other ships of the Project. Despite their poor design and construction history, the corvettes proved capable in the roles assigned to them and managed to barely avoid white elephant status. To fill the gunboat corvette position, the Armada commissioned the Princípe Jerónimo class, which the Princesa Glorias would serve alongside. The extensive reworking of their hulls meant that the Princesa Gloria class could not be modernized to the extent that other ships could, and the decision was made to retire them from combat vessel status in 2022. Three ships were refitted and recommissioned as the Aleta class of offshore patrol vessels and assigned to fishery duty. The ARC Princesa Desiree, as the last and most modern Block 2 corvette, was left unchanged and recommissioned as the ARC-T Princesa Desiree training vessel.