The 5009 is deliverable in two formats. It can be either a Fast Crew Supply [FCS] ship or a Security Patrol vessel. Though the vessels are complete and ready to go, they still possess flexibility. Damen is able to carry out the final conversion for either option within a matter of weeks. They are also the first in their class to be outfitted with MTU engines that offer a lighter weight-to-power ratio for increased speed.
This ship is based on a well proven design for the offshore industry, of which more than 50 have been built. The huge clutter-free aft deck can be fitted with all equipment necessary for patrol tasks, e.g. daughter craft – from RIBs to Interceptors. Besides, ballistic protected safe zones can be created in the superstructure.
The Sea Axe design offers unprecedented seakeeping characteristics. Besides, this very slender hull shape is very fuel efficient. Since the eighties, Damen and Delft University of Technology have cooperated on a research programme aimed at improving the seakeeping characteristics of high speed vessels. This cooperation produced the "Enlarged Ship Concept" on which the highly successful Stan Patrol 4207 and 4708 are based. The development of the ‘Axe Bow Concept’ followed; a hull shape with unparalleled seakeeping characteristics. Using this design innovation, Damen developed the ‘Sea Axe’ Patrol Boats and Fast Crew Suppliers.
The versatile FCS 5009 Patrol boats have consistently shown themselves to be an ideal solution for patrolling an EEZ. They have low operational costs, are very fuel efficient, have a competitive purchase price and, crucially, are easy to maintain. Overall, they provide a reasonable Total Cost of Ownership, making them attractive to countries that have a requirement to patrol an EEZ.”
DSCT has prepared the vessels for outfitting with 'Sea Rogue' weaponry; a system that includes a 20mm cannon forward of the wheelhouse and two 12.7mm Browning guns fitted respectively port and starboard of the wheelhouse. The 'Sea Rogue' can be operated by a hand controller and has an accurate target-tracking feature. Working with manufacturer Reutech, DSCT can install the weaponry in a matter of days.
The Stan Patrol 5009 is based on the Sea Axe FCS 5009 design. This 50 meter vessel was developed by Damen in 2006 as a Fast Supplier for the offshore industry. Although the looks of the Stan Patrol 5009 differ significantly from the FCS 5009 (basically the superstructure), the major systems of these designs are very similar, i.e. well proven.
The Damen Stan Patrol 5009 is the first “Sea Axe” patrolboat, which means that the hull is designed according to the “Axe Bow Concept”. This “enlarged” hull shape is the result of years of research by Delft University of Technology, the US Coast Guard, the Royal Netherlands Navy, the Maritime Research Institute Netherlands and Damen. As a result, a relatively light, long and slender design with a very fine entry is obtained, free from flare and with an extremely deep-V – all focussed on improving seakeeping capabilities of the vessel. This hull slices through the waves effortlessly, with very low vertical acceleration levels and completely free of slamming.
Worldwide, the majority of high speed vessels are designed for “trial conditions”. This is the condition in which the promised speed of a ship has to be proven to the customer. To limit speed degradation due to wind and waves, “trial conditions” basically means “no wind” and “no waves”. As a result of designing for “trial conditions”, many high speed vessels worldwide perform well on flat water, but show serious shortcomings in the “real world” on the sea. In waves of some significance, these vessels have to slow down to keep the crew – and the ship – in one piece.
In the beginning of the 80’s, Damen and Delft University joined forces to change the high speed craft design philosophy and started to design for “operability at sea” instead of “trial conditions”. The Axe Bow earns her name from the side view of the bow: the keel line slopes down forward and the sheer line slopes up – strongly resembling the blade of an axe.
The Axe Bow is a further development of the “Enlarged Ship Concept”. This concept is based on lengthening the hull of a ship, without increasing the functionality. A more slender hull shape is the result, which cuts through the waves more easily - without a serious price consequence. The Axe Bow takes this philosophy to the limit. The extremely slender and deep bow, without any flare, provides unprecedented soft seakeeping characteristics. Where a conventional high speed vessel bounces over the waves, the Axe Bow effortlessly cuts through the waves. As a result, the Axe Bow can sail at maximum speed, independent of the circumstances, without damaging the crew or the ship’s construction. The Axe Bow is the result of five years of research, initiated by Delft University and carried out in cooperation with the Royal Netherlands Navy, the Maritime Research Institute Netherlands, US Coast Guard – and of course Damen. Damen uses “Sea Axe” as a commercial name for the Axe Bow designs.
Due to the oversized hull of the Damen Stan Patrol 5009, it was possible to place the wheelhouse at the position where the ship motions are least: approx one third from the stern. This creates the best possible working environment for the crew.
In January 2015 Damen Shipyards Cape Town (DSCT) completed the build of two FCS 5009 Patrol vessels, the first of their type to be built in South Africa. Another of the same class was already in operation with the Cape Verdean Coast Guard. In May 2015, following a 4-year acquisition program, the Government of Trinidad and Tobago agreed to purchase twelve vessels for the Trinidad and Tobago Defence Force from Damen Shipyards.
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