- Length
- 83.60 m official OCEA OPV 270 range listing; service reporting rounds Gabriela Silang to 84 m
- Beam and draft
- About 16 m beam and 3.5 m draft reported for BRP Gabriela Silang
- Hull construction
- Aluminum offshore patrol vessel hull
- Crew and operations complement
- OCEA lists 72 crew plus 35 operations personnel for the OPV 270 range; Gabriela Silang reporting lists 40-44 sailors plus additional passenger, VIP, or survivor accommodation
- Propulsion
- Hybrid diesel-electric arrangement reported for Gabriela Silang, including MTU 16V4000 M73 diesels and Leroy-Somer electric motors
- Speed
- 20 to 25 knots in OCEA range data; 22 knots reported for Gabriela Silang
- Range
- 4,500 to 8,000 nautical miles at 15 knots in OCEA range data; Gabriela Silang service reporting cites 8,000 nautical miles
- Endurance
- 22 days in OCEA range data; Gabriela Silang reporting cites up to five weeks and Baird Maritime cites up to 45 days before refueling and resupply
- Small craft
- Two 9 to 9.5 m RHIBs for search and rescue, interception, and boarding tasks
- Aviation facilities
- Helicopter deck and hangar for Philippine Coast Guard H145-class operations
- Mission systems
- Command-and-control room with Nexeya LYNCEA; reported radar, AIS, sonar, and other sensor integration
- Missions
- EEZ surveillance, smuggling and illegal-immigration control, anti-piracy, vessel control, search and rescue, pollution response, sovereignty patrol, diving support, disaster relief, and helicopter operations