The only specialised marine publication in Oceania that focuses on the maritime industry, from super yachts to small craft to large commercial ships, including coastal shipping, tugs, tow boats, barges, ferries, tourist, sport-fishing craft
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Comfortable crew area The fully enclosed fishing weather deck room is fully insulated for crew comfort. There is a large workbench to one side with all the tools for any onboard repair and maintenance readily available. The large Kohler 28KVA 3 phase 28EFO2D Marine genset sits in the corner. She is equipped with a fuel efficient Scania DI12 59M engine, coupled to a 9:1 CPG-32 marine gearbox driving a Hundested Propulsion System consisting of a VP9.5 1800mm diameter variable pitch propeller, designed to give significant fuel savings. This means at any given rpm the propeller can be correctly pitched for efficiency with maximum power being drawn from the engine without overloading by changing pitch. At lower than maximum speed the engine's fuel consumption can be reduced considerably by increasing pitch and lowering rpm whilst maintaining the required towing speed. There is no need for a reversing gearbox, only reduction is required, no change of shaft rotation, no stalling or inertia issues, resulting in superior low speed control. The end result is an effective tow or bollard pull of 6.4 tonnes @1800rpm. Individual blades can be replaced in the case of damage, although this is unlikely given the protection of the fixed nozzle. The Stark commitment to bio-fuels remains, and the reintroduction of a 60/40 blend away from the 100 percent is in part to ensure that the local suppliers can maintain consistency of supply to existing Stark vessels and other local companies who have committed to bio-fuels. BioDiesel New Zealand does not import bio-fuel, it is all grown and manufactured locally. Legacy will also run on a B60 blend – 60 percent bio-diesel with 40 percent petroleum diesel. Following on from lessons from the other vessels there is a insulated fish room with cold wall refrigeration and an onboard salt water ice maker capable of producing 1.5 tonnes per 24 hours, meaning you are only carrying and making ice when you need it. 40m3 On the trawl deck the split hydraulic winches are computer- controlled with auto-scrolling/wire counting, 1800m x 14mm wire rope per winch. Also present are two Rotlzler TC2 cod end winches and a Rotzler TH1 unloading winch. Up top are the two Stark made net rollers for the main trawl net and spare. The Legacy is fishing with a set of Morgere Model No OFN 03.5 being 1.9m² x 300kg trawl doors supplied by Motueka Nets, along with a 120ft wing trawl also supplied by Motueka Nets, and a secondary 120ft wing trawl net from Gourock NZ. The crew undertake only minor net repairs. With anything major the net is dropped ashore and another spare net loaded aboard for more efficient and professional net repairs and most importantly, it keeps the boat at sea fishing which is the only place the money is earned. A range of cod end size and lengtheners are used, including T90 to enable the catch of small fish to be reduced as necessary. 10 Professional Skipper May/June 2012 Fish room We understand Legacy is the first fishing trawler in New Zealand to be fitted with a 160khz WASSP WMB multi-beam sonar system with advanced Navigator 2D/3D seabed-profiling software. This system enables the skipper to see real-time 3D images of the seabed, which will enable more efficient and productive fishing. This system was developed by Electronic Navigation of Auckland who are recognised as being world leaders in this type of advanced New Zealand developed technology for fishing vessels, with the technology also being used by a range of other agencies requiring seabed profiling including security, search and rescue and so forth. There is a vast array of supporting electronics including a Furuno ARPA M1835 36nm colour radar along with a Furuno FCV295-NT colour depth sounder and fish finder. A Furuno SC-30 Sat Compass GPS is linked to the SeaPlot PRO chart plotter and Furuno Nav pilot 700. Radio communications are covered by an Icom IC-M801E SSB radio with a Uniden Oceanus UM415 VHF. Legacy, as are the other company vessels, is fitted with a TracPlus system, giving the company real time tracking of the vessel's position and speed, enabling the company to keep an eye on the boats at all times, also adding to the vessel's safety as their exact location is known historically. The crew can prepare a meal in the well appointed galley and watch TV, DVDs or listen to music at day's end. There is also a computer which has internet capabilities for company communications and the skipper's use. Protection of the vessel from the harsh marine environment is always a tough ask and must start at the initial construction stages. International Paints were involved from initial concept to completion of the project to ensure coating systems met and performed to the customer's expectation and warranties. Ensuring a successful coating system and providing long term corrosion protection begins at the interface of the primer and new plate. This began with the correct pre-treatment and application of the new building plate with Interzinc 317. Interzinc 317 is a high performance, pre-fabrication weldable zinc ethyl silicate primer which maximises workability and productivity to maintain the build process. It also reduces a costly and lengthy additional sandblasting surface preparation process. Post construction internals were protected with the application of Intershield 300, high performance pure epoxy abrasion resistant anticorrosive system. Above the water, external steel plates are coated with Interzinc 52, a high ratio epoxy zinc primer then over-coated with Intershield 300. The above water finish system utilised Intergard 263 epoxy tie coat to the anticorrosive system prior to the application of Interthane 990, a recoatable polyurethane gloss finish. The hull below water was anti-fouled with Interclean 175, a long life, traditional, high strength, controlled depletion polymer for fouling protection during the vessel's in-service