In the Portuguese Navy, these ships are referred as patrol boats.
In the 1950s Venezuelan Navy, the ships were classified as DLV (Destroyer Light Vessel) or light destroyers, in the 1980s were reclassified as ASW frigate, and are currently classified as coast guard vessels.
These ships include these notable characteristics: The usage of the fin stabilizer is a weapons systems support device to stabilize the ship making it a more steady gun platform in rough seas.
The construction contracts for these destroyers were awarded on 25 January 1954, and their names were an homage to Venezuelan war of independence heroes who lie at Panteón Nacional: Two destroyer escorts of similar design was built for Indonesian Navy by Ansaldo.
[6] In comparison with its Venezuelan sisters, the Indonesian ships had lighter anti-aircraft armaments which consisted of three 20 mm in twin mounts.