BRP Emilio Liwanag (PB-118)

BRP Emilio Liwanag (PB-118) is a Tomas Batilo class fast attack craft of the Philippine Navy. It is part of the last batch of such craft transferred to the Philippines by the South Korean government in 2006. After 2 years of refurbishing, refitting and upgrade, the ship was commissioned into active service by the Philippine Navy on 15 April 2011, although it was presented to the public as early as May 2010 during the 112th Anniversary of the Philippine Navy.

It was upgraded under the Patrol Killer Medium-Republic of the Philippines (PKM-RP) Program of 2008 by Propmech Corporation; the upgrade included the reinforcement of its hull; replacing the engines, radar, navigation and communication systems; and changing the weapons fit-out to include a crane and space for rubber boats. The upgrades were completed in 2010.

In April 2016, in line with the Philippine Navy Standard Operating Procedures #08, the boat was reclassified as the patrol boat BRP Emilio Liwanag (PB-118).

Technical details
The ship was originally powered by two MTU MD 16V 538 TB90 diesel engines with a total output of 6,000 horsepower. The refurbishment works replaced the old engines with new Caterpillar 3516C diesel engines, with a total output of 6,300 horsepower.

The ship is equipped with a Koden Electronics MDC 1500 Series navigation and surface search radar, which replaced the previously installed radar.