Hybrid patrol vessel
Minimal wave action
Stairs to below deck
Scheepswerf Gebr. Kooiman BV has delivered a new patrol vessel to the Port of Rotterdam Authority N.V. (POR). The vessel, RPA 8, is a hybrid patrol vessel that can sail on both diesel as well as diesel-electric. The vessel causes considerably less wake and is significantly more efficient than comparable vessels in this segment.
The design of the vessel is an important step forwards in vessel design for these kinds of ships. The combination of Van Oossanen's Fast Displacement Hull Form (FDHF) and an underwater spoiler, named Hull Vane® make the vessel unique. Kooiman Engineering B.V. in Zwijndrecht produced the rest of the vessel design. The design was further developed in close cooperation with POR, with extremely high requirements being set for ergonomics, working environment, visibility and safety.
The aluminum vessel (25 metres in length, with a 5.4 beam and a draught of 1.36 m) is equipped with two main engines of 382 kW, 2 permanent magnet motors of 175 kW and a 50 kVA generator. The vessel can achieve a maximum speed of 35 km/h on diesel and 22 km/h using hybrid propulsion. The vessel is equipped with an exhaust treatment system and particle filters.
Scheepswerf Gebr. Kooiman B.V. was responsible for the construction of the hull and the entire fitting out. Kooiman Scheepsinterieurbouw B.V. took care of the interior and joinery. The vessel was constructed according to Bureau Veritas requirements and has a green passport.
hybrid patrol vessel with underwater spoiler
Length overall: 25,00 m
Beam (template): 5,40 m
Cube (template): 3,10 m
Draught (keel): 1,36 m
Main engines: 2 x 382 kW
Bow thruster: 1 x 55 kW
Port generator: 1 x 50 kVA
Permanent Magnet motors: 2 x 175 kW
Max speed (diesel): 35 km/h
Max speed (hybrid): 22 km/h
Crew: max. 7 people
Fuel: 2.6 m3
Drinking water: 0.34 m3
Black and Grey water: 0.57 m3
The entire wheelhouse and accommodation areas are ergonomically designed.
Minimising the window frames provides the crew with panoramic visibility.
Air suspension below the wheelhouse ensures that the vessel is exceptionally quiet. Noise levels in the wheelhouse measured at 100% power were just 49 dB(A). This is comparable with the noise level of a quiet office or a rain shower.
RPA 8 generates a wake of just 29 cm at patrol speed (20 km/h). At this speed, RPA 1 & 2 generate a wake of 58 cm.
Time Lapse new build RPA8
Sea trial and water displacement
For sustainable harbour
Contact a representative of our enterprise directly about the possibilities of Kooiman Patrol Vessels.
Because we have made work ships and patrol vessels one of our specialties, we are highly experienced in the design and installation of deck equipment and auxiliary machinery. More information about patrol vessels and Kooiman maritime design and newbuild.
3336 LE Zwijndrecht
T +31 (0)78 61 00 477
F +31 (0)78 61 00 039