Damen Group, a Dutch shipbuilding firm, has a record for designing a range of patrol vessels, the Damen Stan patrol vessels, that includes the Damen Stan 5009 patrol vessel. Vessels built to the 5009 design are 50 metres long and nine metres wide. The design is unusual, in having a vertical leading edge to the hull, which Damen calls an "axe bow" - a feature Damen describes as improving habitability in high seas. Vessel of this design have maximum speeds in the 25-35 knot range, and can accommodate crews of approximately 20 to 30 individuals.