Proposal specification
Concept design
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HELEN-SHIP 56 is motor cruising yacht of 56 feet (17 m) of hull length, complying with next Rules and Regulations:
Under request different standards may be accepted. TECHNICAL CHARACTERISTICS
OPERATING CATEGORIE Operating categoric - II COMMUNICATION The builder will strive to keep good and regular communication with the owner at every stage of the construction process. To farther assist the communication process, the builder welcomes and encourages the owner to provide an owner's representative or project manager, should the need arrise. VARIATIONS TO SPECIFICATION Every possible step will be taken to avoid the complication of variations and changes to existing structures. If, during the construction any detail is changed by the owner, his representative or the designer, and this variation will cause an increase in the cost and a delay in the construction time, the owner will be notified and shall approve the estimated increase in writing before such a variation is carried out. SHIP'S OPERATION MANUALS A set of volumes comprising the operating manuals is to be supplied in duplicate. One set to be installed in an appropriate stowage on board and one to be kept by the builder to assist in enquiries for technical advise. The manuals are to include:
It is strongly recommended that the owner's technical representative is directly involved with generating these manuals. WARRANTY The yacht and its equipment shall be warranted against
defects of workmanship and materials for a period of twelve months from
the date of the yacht's commission. This warranty shall be limited to
the replacement or repair of parts or materials which, despite normal
maintenance, have been found to be defective. Consequential damages are
excluded. CLIENT SUPPLIED ITEMS The builder shall take delivery of the client supplied items on a "just in time" basis and shall store them safely and securely. TRIALS Before the acceptance of the yacht by the owner a series of trials with the owner and/or Ms representative, the builder and the designer will be carried out. Mechanical systems and other equipment are to be demonstrated and conformity to specifications checked. STRUCTURE GENERAL The yacht hull are to be designed and moulded of composite
laminated epoxy resin and high quality E-glass fiber (alternate layers
of chopped strand mat (CSM) and/or bi-directional woven roving) by the
hand lay-up method in single skin construction from female moulds. MATERIALS Epoxy resin ÝÄ-20 HULL LAMINATE SYSTEM The hull is moulded with conventional foam filled longitudinal stringer construction. All stringers are reinforced with the use of unidirectional E-Glass. SHELL SIDE LAMINATE Thickness.........10mm SHELL BOTTOM LAMINATE Thickness............14 mm SHELL BOTTOM IN WAY OF KEEL Thickness.................16 mm STEERING GEAR GENERAL The yacht is steered with hydraulic steering system equipped with dual station. STEERING WHEELS The wheels will be custom made. A stainless steel rims with a layer of plastic is supported by 6 polished stainless steel spokes. RUDDER The rudder configuration is that of a balanced spade rudder with an efficient foil-shape and a fine trailing edge. The blade is built from stainless steel. RUDDER-SHAFT AND BEARINGS The rudder-shaft is made of stainless steel. The rudder-bearings are made of bronze with a upper bearing and a lower sealed bearing. EMERGENCY TILLER The emergency tiller is fabricated of stainless steel and locks directly into the rudder. MOORING EQUIPMENT GENERAL Provision will be made to store one anchor on the bow. The vertical windlass is recessed in a well on the foredeck. ANCHOR WINDLASS A Vetus URSUS 10 vertical windlass, incorporating a drum and a chain gypsy. BOWROLLERS Bow rollers will be incorporated in the stemhead fitting. ANCHORS 30 kg CQR with 45 meters of 10 mm galvanized chain to be
stored in the forward chain locker. MOORING CLEATS Pairs of mooring cleats will be mounted in the bow area, midship and on the aft deck. PROPULSION PLANT GENERAL Equipment are to be installed to the highest standards of marine engineering, providing easy access where necessary. The engine room bilge under the engine is a separate sealed compartment to prevent oil etc getting into the main bilge. Operating Manuals are to be provided for all mechanical equipment. ENGINES The propulsion machinery consists of a two ÇÄ12Í-520 diesel engines developing 520 HP at 1500 rpm. TRANSMISSION "V" gearboxes are fitted to the engines. STERNGEAR The three bladed 600 mm propellers will be fitted to a 60 mm stainless steel propeller shafts. Zinc anodes are to be fitted. SHAFT BRACKETS The propeller shafts are held in a welded stainless steel brackets, which is thrubolted i to the hull. RAW WATER COOLING Is supplied through two seawater strainers, interconnected by a valved 50 mm pipe and accessible for regular inspection and cleaning. Each one can be shut off individually to facilitate cleaning without interrupting sea water supply. ACCESSORIES A 50 amp 24 v alternator will be fitted to the engine. EXHAUST PIPES The engines exhausts are connected to an epoxy water trap in the engine-room bilge from where it will be in rubber steam hose to the stem. CONTROLS A key switch, manual stop and the following gauges will
be displayed on panels in the main cabin and upper deck: FUEL SYSTEM GENERAL The fuel system conforms to the best marine practices. Junctions in pipes are kept to a minimum, and those that are unavoidable are mounted in readily accessible and visible locations. ENGINE PRE'FILTERS A engine pre-filters will be installed complete with water alarm. GENERATOR PRE-FILTER A generator pre-filters will be installed complete with water alarm. FUEL INLET SYSTEM Two recessed deck-fillers will be fitted close to the maximum
beam on both sides. The filler pipe is a "U" pipe of generous
diameter from which any one of the fuel tanks can be filled. FUEL DISTRIBUTION SYSTEM A fuel distribution manifold will have valves connections to all the tanks. FUEL PIPING Fuel piping is stainless steel piping in the engine-room. TANK GAUGES All tanks are provided with a system tank gauge. FRESH WATER PLUMBING GENERAL The plumbing layout will be done in the way of three ring
mains -one for cold fresh water, one for hot fresh water and one for sea
water to allow the toilets to be switched to sea water via X-over connections
should the need arrise. The ringmains will be mounted on pipe hangers
just below the stringer at worktop level to allow easy access to joints
from within lockers. The piping will be installed neatly in a way that
flowpaths can be appreciated easily and to avoid tight bends and torturous
routing. Water piping will be done in PVC, with welded joints and
special compression fittings. WATER DISTRIBUTION SYSTEM Deck filler on centreliner will feed a distribution manifold. The manifold will have valves outlets to each fresh water tank. FRESH WATER PRESSURE SYSTEM A pressurized water system by way of a pump with 50 L expansion tank is installed. Water is distributed to all heads, the galley and to a fresh water deckwash. An emergency foot pump for fresh water and sea water supply will be fitted in the galley. PIPING Piping is of the highest quality materials PVC and will be laid out in the most functional manner possible, with easy access and clearly indicated flow-paths. COLOUR CODING Piping will be colour coded or clearly marked indicating contents and direction of flow. Unless differently specified by the owner or his representative the colour coding will be the following: • Fuel.............................Black TANKS - FRESH WATER Yacht are equipped of two stainless steel tanks with a
total capacity of 900. All tanks are fitted with breather pipes. SHOWERS AND SINK DRAINAGE Showers and sinks will drain into grey water tanks fitted with a watertight inspection hatch. Three 24V DC electric pumps are installed with automatic or manual controls pumping into the main grey water tank via a anti-syphon bend. TOILETS All toilets on board will be marine type toilets. SEA WATER SYSTEM GENERAL Bilge pump suction pipes are mounted in easily accessible positions wherever possible. Seawater inlets are fitted with filters. PUMP MOUNTING All pumps are mounted on rubber anti-vibration mountings and connections and piping are flexibly mounted to minimize noise transmission and vibration into the yacht structure. BILGE PUMPS A 24V DC bilge pump is connected to a manifold to pump out all bilges. The main bilge will be equipped with manual bilge pumps. A main engine powered pump is fitted and also linked into the manifold. BILGE SYSTEM All structural elements will have large diameter limber holes wherever necessary to allow bilge water to collect at a central point from where it can be discharged. Bilge water from aft accommodation is led through the engine room in ducts, keeping the engine room a self-contained compartment. SEACOCKS All through-hull inlet or outlets below the water line are of stainless steel and will be equipped with seacocks in readily accessible positions. INTERIOR ARRANGEMENT GENERAL The interior layout is a four cabin layout according to the interior layout drawings. MATERIALS To optimize the yacht's weight distribution, foam cored plywood and glass panels are used where suitable and possible. BULKHEADS All bulkheads are ply/foam panels. Where possible concealed wiring ducts will be incorporated in the bulkheads. WARDROBES AND CUPBOARDS Interior of cupboards and wardrobes will make provision
for hanging rails, fitted storage racks, bookshelves and drawers where
necessary. GALLEY EQUIPMENT The galley stove is 4 burner stove with an oven. Two deep stainless steel sinks are set in a Corian work-too. MIRRORS Mirrors will be fitted in all head-compartments and inside locker doors in the cabins (Removable). ELECTRICS GENERAL The on-board electric system will be 24 V DC and 220 V AC. The wiring layout and switchboard are designed to the highest standards of marine engineering using superior quality materials and components. WIRING Tinned copper wire is used throughout, and will be led in closed conduits. GENERATOR 3 KVA generator. SWITCH-BOARD The switch-board is coated aluminium panel clearly labelled for each circuit. Carlingswitch or equivalent circuit-breakers are used throughout. Spare circuits will be provided. SHORE POWER One off shore supply socket will be fitted and a length of shore power cable will be supplied. AC MAIN A 220 V 50 Hertz single phase AC main will run in the boat. The circuit can be fed by shore-power or generator. Shore supply voltage is monitored by a reverse polarity warning device. BATTERIES 24 V DC 500 A/H (Shipsload) 24 VDC 180 A/H (Navigation) 24 VDC 120 A7H (Starting) 12 VDC 60 A/H (Gen start) INTERIOR LIGHTING Interior lights will be equipped with dimmers in the saloon. Flexible spot-lights will be provided at the navigation station. CABIN LIGHTING There will be concealed lighting in addition to the direct over-head lighting. Reading lights will be provided at each bunk. NAVIGATION LIGHTS Two navigation lights (port and starboard) Stem Lights Anchor Light. INSTRUMENT LIGHTING The instruments are internally illuminated normally in red to prevent loss of night-vision. ELECTRICAL EQUIPMENT Anchor Windlass.........24 V DC ELECRONICS GENERAL In the selection of electronic equipment, the choice will
be based on reliability, serviceability and value. FINISHES GENERAL Paint work is spray-finished. Interior varnish work will be in satin finish. TOP SIDES External surfaces above water line are finished in marine paints. BOTTOM The bottom is faired to the same standard as the rest of the yacht. An epoxy coat will be applied prior to anti-fouling. BILGES An flow coat will be applied to all areas inside prior to the installation of tanks, plumbing and through hull fittings. DECK All exposed surfaces on the deck will be painted with high-gloss Polyurethane. Horizontal surfaces will be finished in non-slip. INTERIOR All veneered surfaces will be finished in satin gloss with a minimum of 6 coats. Heads and galley will be finished in satin gloss Polyurethane. METAL WORK All stainless steel will be polished with no welds visibles. All aluminium surfaces will be anodized. SECURITY EQUIPMENT GENERAL Special care will be taken to provide the highest possible standard in safety. Emergency equipment will be provided and positioned to internationally accepted specifications. FLARES Twelve red parachute flares FIRST AID KIT A suitable First Aid Kit for this size yacht will be supplied. LIFE-RAFT A 10 - man life-raft will be positioned in a well on the aft deck. A removable lid closes off the compartment. LIFE-VESTS Eight internationally approved life-vests will have a fixed storage space on board. FIRE PREVENTION Two fire extinguishers will be provided. One will be fitted easily accessible to the galley, and one adjacent to the engine-room capable of being discharged externally into the engine-room compartment. INVENTORY GENERAL It is the intention to supply the yacht suitable equipped for its intended use. ELECTRIC SPARES Two spare light bulbs for each model will be provided. PLUMBING SPARES Spare sets of washers, seals etc ... will be included. TOOLS/STOWAGE Stowage arrangements for a owner supplied tool-kit will be provided. GALLEY EQUIPMENT Storage space for galley equipment to be supplied by the owner, will be customized to ensure safe and secure stowage. BOARDING LADDER A boarding ladder will be provided. FOGHORN A air-propelled foghorn will be included. COMMISSIONING GENERAL The yacht will be launched and commissioned to the satisfaction of the owner and designer. The over-all performance will be checked under power, related to the designer's predictions. DOCUMENTATION Necessary documentation concerning bought-in items will be filed and handed to the owner. TRIALS The trials of the yacht will be carried out in accordance with a checklist, which will include: A) MAIN ENGINE The engine will be checked for: B) GENERATOR SET Comprehensive trials will be carried out at normal full load conditions. C) SWITCH-BOARD All electric circuits will be checked for polarity and run individually for prolonged periods to check capacity and adequate heat dissipation. D) AC SYSTEM AC system will be tested to maximum specified load. E) NAVIGATION GEAR All electronic aids will be tested over a prolonged period of time after calibration to ensure correct and reliable operation. Compasses will be swung and deviation tables supplied. F) COMMUNICATION EQUIPMENT Transceivers will be checked that performance is in accordance with makers specifications. H) GROUND TACKLE All ground tackle, including windlass, will be checked for problem-free operation. I) STEERING Correct, sensitive operation of the steering gear will be checked in ahead and astern. The use of the emergency tiller will be demonstrated. |