105 FT GAFF CUTTER " WHITE EAGLE - PI"
GENERAL SPECIFICATION
GENERAL SPECIFICATION
DESIGNED BY:
YACHT STUDIO STRAWINSKI
Juliusz Strawinski BScNA
81-870 Sopot
Armii Krajowej 49
POLAND
INTERIOR DESIGN BY
Jörg Köhneke
Stuttgart, Germany
BUILT BY:
GDANSK YACHT BUILDERS
GDANSK, PRZETOCZNA 2
POLAND
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I. GENERALS
101. Customers indications for the design.
01.01. Style of yacht
The design was to follow the style of late twenties - early thirties racing gaff machines. American schooners were indicated as specially impressive. Interior was to be designed light and simple without excessive decoration.
01.02. Materials and technology.
The builder used good standard materials tested and approved by Germanischer Lloyd for all vital parts of the yacht - hull, deck, rudder, centerboard, mast and spars etc. Special care was put on preventing corrosion.
01.03. Classification
The yacht has been designed to meet and exceed the rules of Germanischer Lloyd and PSR regulations where these were more restrictive. The yacht has been built under Germanischer Lloyd survey and Classification.
01.04. Range and area of operation.
The yacht is intended for charter operation cruising in the Caribbean and Mediterranean and be able to make safe and comfortable ocean crossings.The capability of shallow water operation was essential combined with good manoeuvrability for entering small harbours.
01.05. Crew.
The yacht can be handled by non-numerous crew basically consisting of capitain, first mate, steward-cook, mechanician and one deck-hand.
01.06. Equipment.
The equipment provides comfortable operation, easy handling safe navigation and guest entertainment on board. Efforts were undertaken to keep the installations simple and easy to maintain. Custom production of equipment was undertaken where reasonable for easy handling, layout reasons etc.
01.07. Accommodations.
The principles for designing the accommodations layout were as follows:
- biggest possible saloon adjacent to galley and bar.
- five guest cabins, with ensuite bathrooms, easily convertible from twin into double.
- capitains cabin with ensuite bathroom.
- crew quarters consisting of first mate's cabin and crew cabin with bathroom and own,
additional companionway.
- chartroom with good visibility.
01.08. Stability.
Shoal draft does not inflict stability.All requirements of both, Germanischer Lloyd and PSR for stability of sailing ships are fullfilled and proved with detailed calculations in each sail-load configuration,additionally verified by inclination test. Full stability information for the capitain regarding static and dynamic stability has been produced.
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II. MAIN PARAMETERS and TECHNICAL DATA
II.01. Main dimensions.
Length overal LOA - 36.30 m
Length over deck LOD - 31.80 m
Length waterline LWL - 22.80 m
Beam B - 7.40 m
Draft : centerboard up Tu - 2.45 m
centerboard down Td - 7.00 m
Freeboard (min.) Fb - 1.55 m
Displacement D - 115 t
Ballast Gb - 20 t
Weight centerboard WC - 8 t
Sail area : maximum SA - 630 sqm.
working WSA - 440 sqm.
Mast height from WL Hm - 38.50 m
Boom length BI - 19.50 m
Main engines - 2x 120 HP Cummins
Main generators -2x 12 kW 320V Westerbeke
Desalinator - 3400 1/day
Air Condition - 96.000 BTU Marine Air
Tanks : fuel -11.2 t
fresh water - 5.5 t
grey water - 1.1 t
Auchor winch - 2.5 kW
Fridge - 1500 L
Deep freezer - 700 L
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III. LINES, HULL SHAPE
III-01. General.
The shape of hull over the waterline has been kept completely traditional with low freeboard, quite long overhangs, and stylish sheer line. The underwater body has been shaped to more modern requirements with sharper waterlines and Center of buoyancy moved slightly aft. The prismatic coefficient has been chosen for optimum speed about 9 knots. Long but shallow keel provides good directional stability while the leeway is reduced by the lift given by the centerboard.
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IV. STEEL HULL CONSTRUCTION
IV.01. Generals.
Steel hull is completely welded of mild steel with mixed transverse longitudinal construction. Three watertight bulkheads separate forepeak, afterpeak and auxiliary engine room from the accommodation. Main engine room is placed below a steel construction of cabin sole and separated from other bilges. Fuel and fresh water tanks are built in integral in hull construction. Centerboard case is welded in between keel and deck with aditional support at level of cabin sole.
IV.02. Materials.
Materials marine grade mild steel Germanisher Lloyd tested and approved. Stainless steel 1.4401 (DIN) extensively used.
IV.03. Corrosion protection.
Special consideration has been paid to corrosion protection of the steel hull. The design carefuly skipped any tight corners and overlap welds. In places where steel is connected to wood construction ( like deckhouse coamings ) stainless steel has been used as well as in places exposed for abrasion ( like chainpipes ). Fragile places like cockpit, waterways, portholes, coamings, bilges, etc. have been zinc sprayed. Ballast compartments have been filled with oil and welded gastight. All structure has been thoroughly sandblasted and painted with Awlgrip system. Zinc anodes are placed outside hull and inside bilges.
IV.04. Scantlings.
Outer shell plating gunwale = 5
topsides = 4
bottom = 5 to = 8
keel sides = 12
keel sole = 20
Transverse frames L 100 x 50 x 5 sp. 800
strong frames L 100 x 50 x 6 sp. 400
Watertight bulkheads = 5 to = 4
Flors regular = 6 fl. 5x80
strong floors = 8 fl. 8 x 80
in way of CB = 12 fl. 12 x 120
Longitudial frames
topsides bulb bar 5 x 60 sp. 400
bottom bulb bar 6 x 60 sp. 400
Deck beams regular L 75 x 50 x 5 sp. 800
strong beams L 100 x 50 x 6 sp. 400
beams with top flanges 6 x 150
Deck stringers h = 275 = 10
and h = 250 = 10
Deck support pillars pipe 88.9 x 6.3
and 76 x 6.3
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V. DECK and DECKHOUSES
V.01. Wooden deck.
Wooden deck consists of 25 mm marine plywood through bolted to steel beams and stringers with 8 mm dia stainless steel screws spaced 220 mm with Sikaflex in between. Free edges fixed with double row of screws spaced 110 mm. Plywood sheets are scarphed 1:10 and epoxy glued. Teak planking 12 mm is glued to plywood with epoxy West system and Formflex sealed.
V.02. Deckhouses.
Deckhouses are built entirely of teak and teak veneered plywood. The constructions is all over West epoxy glued. Wooden deckhouses are through bolted to stainless steel coaming with double row of s/s screws dia 8 spaced 110 with Sikaflex sealing in between steel and wood. Side windows are of hardened glass. Tops of deckhouses are teak planked over plywood.
Scantlings :
Charthouse
coamings teak = 37
ply = 15
trunk top = 12
teak planks = 12
beams moulded 40 x 65
windows hard gl. = 8
Midship :
Deckhouses
coamings teak = 37
ply 2x = 12
beam moulded 80 x 100
trunk top ply = 15
teak plank = 12
V.03. Skylights.
Skylights are placed over the saloon ( 6 pcs ) i.e in midship deckhouse and separately over each cabin providing light and additional ventillation. The construction of skylights frame provides double seal with drainage in between. Acryl panes are protected with stainles steel grills. The entire constructions of skylights is made of teak. Closing device of s/s double speed crank type.
V.04. Companion ways.
There are three companion ways - one through the charthouse, main to the saloon and crew companion way at front. The main companion way is facing forward so special attention has been paid to making it watertight and secure. The main sliding hatch travells on rolls and in closed position can be brought down to be clamped on rubber seal. Front part is double with rubber seals and drainage in between. Additionally arrangement has been built to use a dacron storm protection pulled into a luffqrove around the hatch.
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Vl. ACCOMMODATIONS
V101. Generals.
The accommodations have been planned for charter service. Anyway small modifications of two starboard side guest cabin can result with spacious and comfortable owner's stateroom.
The styling is very light and delicate post modernistic one in drastic contrast to overdecorated interiors of other super yachts. Furniture is built of cherrywood with raffia inserts for weight saving and ventillation. Sandwich construction plywood walls and doors are covered with cherrywood veneer. Tops of walls and ceiling panelling are covered with glassfibre wallpaper and painted white. Door knobs and handgrips along corridors are made of polished stainless steel. floor covered with carpets. The bathrooms' floors and walls are finished with white ceramics.
The character of interior is underlined for example by four Modell Wa24 Registered Bauhaus lamps placed in main saloon corners.
VL02.Insulations.
The thermal insulation on topsides and underside of deck is done with 60 mm thick nonflammable class B styrofoam. The styrofoam is epoxy glued to construction and sealed with aluminium foil.
Noise insulation is provided by Duripanel fireproof plates and lead foil. Heavy floating floor over the engine room is flexibly mounted on rubber bumpers.
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VII. CENTERBOARD
VII.01 The centerboard is a steel profile filled partly with lead ballast. The centerboard pivots on a ball axle which prevents from bending moments. Aside the centerboard is kept in place by rubber - poliainide bumpers to avoid banging against the walls of CB case. CB is lifted by a wire tackle and electric winch placed on deck.
VII.02. Scantlings :
CB case plating lower part = 20
upper part = 12
CB stiffeners flat bar 10 x 150
flange 10 x 150
spacing 400
All inside of CB case is zinc sprayed.
CB pivoting axle
stainless steel 1.4401 dia 130
ball axle St41 dia 340 zinced
polyomide bearing dia 340 / 508
Centerboard construction
plating = 20 at top
= 12 at tip
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VIII. RUDDER
VIII.01. Rudder blade is a fully welded profile of mild steel plating. Rudder stock is supported by three bearings. The steering wire cables are operated by a mechanical steering gear built of stainless steel and bronze. The column is out of aluminium with the wheel center part in stainless steel and a teak outer rim.
VIII.02. Scantlings :
rudder blade mild steel = 5 to = 8
rudder stock s/s 1.4401 dia 90
rudder bearngs polyamid PA 6.6
wire cables s/s dia 16
s/s link chain = 5/8 "
s/s steering wheel dia 800
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IX. PIPING SYSTEM
IX.01. Fresh water piping.
Fresh water system contains :
1 main tank 3500 L
2x reserve tanks 1350 L each
s/steel l x gravity tank 110 L ( emergency )
s/steel 2 x hot water tanks abt 500 L
The whole system is built with " Viega " piping system. Hot water pipes have been insulated.
Pumps.
1 x MSOE 12V electric transport pump Rheinstrom
1 x manual pump for gravity tank Rheinstrom
1 x A800 12V hydrophore pump Rheinstrom
Hot water tanks are heated by main engines and generators cooling systems plus electric heaters. Extra fresh water is supplied by desalinator ( Aguagen type 170AE/380V ) of capacity 3.5 t per day
IX.02. Bilge water system.
The bilge is divided into four separate areas.
- forepeak and chain locker are drained by manual membrane pump.
- main accommodations section Hella 12V 7000 1 / hour
- engine room : belt driven pump
Hella 12V 7000 1 / hour
Ama Drain 40 - 7.2 SD/C
( 20 000 1 / hour )
- afterpeak manual pump.
The belt driven pump is also used for seawater splash of anchors and rinsing of black water tank.
IX.03. Sewage system.
The sewage system consists of :
1 x s/s main holding tank 1500 L
3x s/s buffer stainless steel tanks abt 150 L each
4x type M 12V Rheinstrom membrane pumps
Raritan PHE Il electric / manual toilets are drained directly to main holding tank via Safix hoses. Main holding can be drained directly overboard or by sucking joint on deck.
IX.04. Fuel system.
There are 2 main fuel tanks abt 6.5 tons each both sides of CB case welded integrally with hull construction. The filling pipe has an ecological stainless steel box on deck to prevent splashing. From both tanks both main engines and both generators can be supplied via metal piping with suitable sets of filters, water separators etc.
IX.05. Exhaust & cooling system.
Exhausts are wet both on main engines and generators. With waterlocks and mufflers - Vetus system. The cooling water piping of each engine is parted with a two-way valve controlling the ammount of water injected into the exhausts.The excess of heat is used to heat fresh water.
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X. MAIN ENGINES
X.01 The yacht is equipped with two main engines.
2x Cummius Disel 6B 5-9-M
115 HP, 6 cyl. 5.88 1 displ. naturally aspirated
2x Gearbox Hurth HSW 800A 2.85: 1
2x Angleflex 140 flexible coupling and thrust bearing
2x Stainless steel (Remanit) propeller shafts dia 50 with rubber lubricated outer bearings
2x three bladed bronze fixed propellers 27" x 23"
The engines and gears are coutrolled by single lever push - pull cables from the helmsman console.
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XI. AIR CONDITION SYSTEM
XLO1. The air conditioning chilled water system consists of the central unit with three compressors, reversible cycle produced by Marine Air USA.
- central unit HCW 96 K-S 96000 BTU 380V SOHz in auxiliary engine room -.2x AH 16 - DTZ fancoil units in saloon
- 8x AH6 - DTZ ( BTZ ) fancoil units in cabins
- seawater pwnp 0.55kW 380V 50Hz
- 9x digital controllers in each cabin
Chilled water is delivered from central unit to fancoils via insulated Viega piping with bronze joints. The condensation water from the fancoils is drained to sewage system.
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XII. ELECTRICAL SYSTEM
XII.01. Generals.
The electrical system basically consists of three nets :
- the generating and high loads net 380V - 3 phase
- tree branches of 220V single phase
- three branches of 12V DC nets
The energy is supplied by two Westerbeke 12 BTDA - 5312 generators 380V 3ph SOHz with Sound Covers.
All major loads are served by 220 V or 380 V nets. Anyway, for night and/or sailing condition the 12 V DC supplied from batteries is enough for approximately 12 hours operation. In case the generator is running 12 V DC is supplied by six Victron Pallas battery loaders.
XII.02. Switch boards.
The main switch board serves the generators connections and all 220 and 380 devices.There are also three 12 V DC switch boards placed close to loaders and batteries in order to diminish the voltage drop. All switch boards are equipped with appropriate fuses, controls and instruments. The installation contains the indicators of the insulation properties and is secured with shock preventers Fl.
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XIII. RIG AND RIGGING
XIIL 01. Generals.
Gaff cutter has been chosen as very traditional, reasonably effective and last but not least very picturesque one. Additionally it is lighter than gaff schooner. The choice was for traditional mast with column and topmast joined at spreader.
XIII.02. Spars.
All the spars are welded of aluminium AlMg4.5 Mn plates. The fittings are welded in through the profile with suitable doubling of wall thickness in way.The fastening bolts go through stainless steel bushings pressed into the aluminium fittings. Efforts were made to keep the traditional appearance of spars, thus they have been very carefuly shaped to resemble wooden spars. All of them have been Microlight filled, faired and Awlgrip painted.
The bowsprit is completely traditional glued of pinewood layers and varnished. It is fixed to stainless steel step with stainless bolts.The fittings of bowsprit are stainless steel through bolted.
XII.03. Rigging.
Standing rigging has been kept traditional. It is made entirely of galvanized 1x19 wire and galvanized turnbuckles.The backstays are operated with tackles and hooked in to hydraulic quick release cylinders (stainless steel Hanchen prod) powered by Navtec Pumps.
Running rigging consists mainly of Marlow and Spectra ropes running though traditional ash-cheek blocks. Two electric custom built winches (ABB 380V motors, WMH-Germany worm gears) in combination with double speed stopping winches handle the sheets.The gaff halliards (and centerboard halliard) are of stainless steel wire and are hauled by electric custom built winch (ABB 380V motor, s/s and bronze planet gears)
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XIV. GALLEY EQUIPMENT
- 1 x Blanco classic s/s sink wirh retractable dish shower and cutting board
- 1 x Winterhalter heavy duty dishwasher 2 minute programm
- 1 x heavy duty restaurant type PB gas stove
- 1 x heavy duty restaurant type 380V 4.5 KW electric oven
- 1 x icemaker 220V 5 kg per day
- 2 x 750 1 refrigerators 220V with holding plates
- 1 x 350 1 freezer 220V with holding plates all produced by German Freezer
The yacht is equipped also with washing machine and dryer.
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XV. NAVIATION AND TELECOMMUNICATION
- 1 x Furuno 1750 radar
- 1 x Sailor RT-2048 VHF radio transmitter - 1 x Rathyon 970 Loran C
- 1 x Koden 95 GPS
- 1 set Autopilot ST 50: wind speed/direction indicator, speed/log, echosounder - 1 x Siemens world receiver
- 1 x Cassens & Plath type Beta 2 compass
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XVI. ENTERTAINMENT
- 2 x traditional mahogany sailing/outboard dinghies
-.1 x Sony CD player,tape recorder with 6 loud speakers
- 1 x Sanyo multi TV/Video system
