It was initially designated as Fast Patrol Craft, and was numbered "DF-380", but later on was re-designated as a Patrol Gunboat, and was finally re-numbered as "PG-380".[1] Another round of reclassification was made in April 2016, which redesignated the patrol gunboat as the coastal patrol craft "PC-380".
The ship was built to US Coast Guard standards with aluminium hull and superstructure. She is powered by two Detroit Diesel 16V-92TA Diesel Engines with a combined power of around 2,800 hp driving two propellers for a maximum speed of 28kn. Maximum range is 1200nmi at 12kn, or alternatively 600nmi at 24kn.
The ship originally designed to carry one bow Mk.3 40 mm gun, one 81 mm mortar aft, and four 12.7 mm/50 calibre machine guns. Instead, she is armed with one 25mm Bushmaster chain gun on Mk.38 Mod.0 mount, four M2HB Browning 12.7 mm/50 caliber machine guns on Mk.26 mounts, with two positioned forward and two aft; and two M60 7.62 mm/30 caliber machine guns, both mounted amidships. The ship can carry 4,000 rounds of 12.7 mm and 2,000 rounds of 7.62 mm A large "Big Eyes" binocular is also carried on tripod mounts, one on the forecastle and one just above the mast.
As part of the second batch (PG-379 to PG-395), it is equipped with Mk.38 Mod.0 M242 Bushmaster 25mm chain gun that the first batch of ships do not carry.[3]
She is equipped with a Raytheon AN/SPS-64(V)11 surface search and navigation radar but with a smaller antenna as those used in bigger Philippine Navy ships.[2] Like all other Philippine Navy ship, she was installed with the Philippine Navy Vessel Tracking System (VTS) by the Naval Sea Systems Command.[4]
A 4-meter rigid inflatable boat powered by a 40-hp outboard motor is stowed amidships.[5]
In March 2018, the BRP Nestor Reinoso provided assistance to the P/Y Atlantis Asorez, a yacht with about 20 foreign guests southeast off Tubbataha Reef off the coast of Palawan. While on routine patrol, the Patrol Craft was informed that one of the Asorez's passengers suffered an injury and required medical evacuation upon which the BRP Reinoso obliged. The injured passenger was safely brought to the nearest hospital upon reaching shore.[6]
In August 2018, the BRP Nestor Reinoso made two rescues in Palawan, the first was when it responded to a distress call and rescued 28 passengers from the Athan Uno which ended up being half submerged after being hit by strong waves on its way to do fishing in the West Philippine Sea (WPS). All of the passengers were delivered safely later to El Nido.[7]
Just a couple of days later, the Tourist Boat M/B Cleopatra was on its way to Bacuit Bay for a Private Tour when it broke its bow due to strong waves when it was spotted by the BRP Nestor Reinoso which subsequently towed the ship to El Nido after transferring its 10 passengers to other boats which assisted in the rescue.[8]
In September 2018, the BRP Nestor Reinoso along with the BRP Sindangan (MRRV-4407), BRP Cabra (MRRV-4409) and BRP Benguet (LS-507) secured and assisted the BRP Gregorio del Pilar (FF-15) which ended up being grounded at the Hasa-Hasa Shoal (also known as the Half Moon Shoal) in the South China Sea. The BRP Gregorio del Pilar was eventually pulled out from the shoal a couple of days later.[9] [10]