Belgian minehunter Primula

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Primula (M924) is a Belgian Navy minehunter from the Tripartite class. It was built at the Mercantile-Belyard shipyard in Rupelmonde and launched on 20 December 1990. It was christened on 12 June 1991 by Mrs. Adriaensens, the wife of Willebroek’s mayor. The ship is named after the Primula flower, and Willebroek city took patronage of Primula. It was the tenth and last Belgian Tripartite minehunter.

Primula underwent major modernization in 2004–2005, including the replacement of the PAP minehunting system and the 20 mm gun.

In September 2025, Belgium decided to donate Primula to the Bulgarian Navy, along with three other Belgian Tripartite minehunters (Bellis, Crocus and Lobelia). Primula remains in active service.

Key specs
- Class/type: Tripartite-class minehunter
- Displacement: 536 tons empty, 605 tons full
- Length × beam × draft: 51.5 m × 8.96 m × 3.6 m
- Propulsion: 1 × 1370 kW engine + 2 × 180 kW engines; bow propeller; active rudders
- Speed/range: 15 knots; 3,000 nautical miles at 12 knots
- Complement: 4 officers, 15 NCOs, 17 sailors
- Boats: 2 rigid-hulled inflatable boats

Sensors and radar
- Hull-mounted sonar: Thales TSM 2022 Mk III
- Self-propelled sonar: Saab Bofors Double Eagle Mk III VDS
- Radar: Consilium Selesmar Type T-250/10CM003

Armament
- 3 × 12.7 mm M2 machine guns
- 10 × Seafox remotely operated vehicles (ROVs)

Identity and motto
- MMSI: 205212000
- Callsign: ORGP
- Motto: Major longinquo reverentia

Additional note
- Primula is a Belgian Tripartite minehunter and the sister ships Bellis, Crocus and Lobelia are other Belgian vessels of the same class.