Powered by 2 x SEMT-Pielstick 16PC 2-5 V400 marine diesels driving twin shafts under stern, the vessel could make headway at 27 knots and range out to 4,000 nautical miles. Aboard was a crew of about 93 specialists. Armament included a single 76mm OTO-Melara turreted deck gun in the "A" position, a 40mm Bofors autocannon in the "B" position and another 40mm gun mounted well aft. Beyond this 2 x 0.50 caliber heavy machine guns could be installed for close-in air/ship defense. 2 x 324mm ILAS-3 triple torpedo tubes were installed to deal with at-sea threats but the main armament of this little ship became the four MM.38 "Exocet" anti-ship missile launchers which gave the vessel a dangerous ranged, sea-skimming capability.
The warship's profile was largely conventional: the forecastle was relatively short and fitted the 76mm turreted main gun. On a stepped portion of the hull superstructure was found the first 40mm autocannon (the second fitting was over the stern). The bridge took its usual place over the forward superstructure and a dual mast approach was featured. The smoke funnels were enclosed and of a low profile design. A helipad was installed to support a single light-class utility-minded helicopter.
Beyond general patrolling duties for the Argentine Navy, ARA Espora has undertaken joint allied exercises. Machinery problems were noted in October of 2012 which delayed her participation in one such event. During May of 2016, she collided with an oil tanker off the coast of Puerto Belgrano - her homeport - and suffered extensive damage to her frame.
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