OVERVIEW
Type Catamaran
Propulsion Sail/Power
Shipyard Lost Trades
Designer Jim Brown/John Marples
Model Searunner 50 EC
Year 2008
Price $900,000.00 USD
Flag USA
Located at Charleston, S.C.
Hull Material Wood/Epoxy
Availability 2008
SPECIFICATIONS
L.O.A 50 feet
Beam 27.5 feet
Draft 3.5 feet
Fuel Tank 100 Gallon
Water Tank 100 Gallon
Displacement 16,000Lbs
ENGINE
Engine manufacturer
Yanmar
Model
75 H.P.
Year 2007
EQUIPMENT LIST
SPECIFICATIONS
Official Number:1205859
State Registration: US Documented
Port of Registry: Charleston, South Carolina
Builder/Address: LOST TRADES, Charleston South Carolina
Builder Hull #: TBD
Built: 2007-2008
Tonnage Gross/Net: 30 / 30
Registered Length: 50’
Overall Length: 50’
Draft: Estimated 3 ½’
Depth: 8.4’
Beam: 27’5”
Vessel Type: Auxiliary sailing catamaran sloop
Vessel use: Commercial
Hull and Vessel Construction Method
Material: Composite wood, epoxy and fiberglass construction
Hull: Fiberglass encapsulated plywood over plywood/fir frames and stringers
Frames: ¾” plywood ring frames with 3.5” x 3.5” stringers
Deck: Fiberglass/Epoxy encapsulated 3/4” plywood
Hull/Deck Connection: Integral with construction
Bulkheads: (4) in each ama
Bottom: Round chine, 7/8” plywood, fiberglass encapsulated
Keel: (2) one each ama, full length
Stem Type: Spoon
Stern Type: Reverse counter
Constant Camber Mahogany Hulls
Schedule BS1088 Marine grade Okume plywood throughout Lloyd’s of London stamped approval on each sheet
All materials marine grade, laminated, coated and/or glassed with Epoxy Resin
Exterior Finish
Awlcraft 2000 Acrylic Urethane Topcoat with Epoxy Primer
Awlgrip Polyurethane non-skid on deck
3 coat micron-biolux bottom paint
Vessel name on bow with USCG approved block letters
Vessel name and home port on stern with USCG approved block letters
RIGGING/Equipment
10” Stainless Deck Cleats (6 on Deck)
6 Lewmar Deck Hatches
9 Bowmar Watertight Hatches
Profurl Genoa
2 size 58 Anderson winches for Jib
2 size 40 Anderson Winches for Main and Jib Halyards
9 purchase Mainsheet with one speed Anderson winch
Full Batten Mainsail with two reefs
Standing Rigging all 316 SS with Norsman fittings, turnbuckles, and toggles to 316 SS Chainplates
All Dacron Running rig with Halyard braid
Fortress Anchor with 15’- 3/8” Chain 316 SS and 200’ of 5/8 anchor line
4 -50’ – ¾” Dock lines
6 Poly-form Fenders
No. of Masts: (1) Deck stepped, no spreaders
Material: Aluminum alloy
Rig Type: Sloop
Sail: Main and Genoa
Standing Rigging: 1 x 19 stainless steel wire with swaged and Norseman fittings
Chainplates: 316 Stainless
Running Rigging: Double braid Dacron
Winches: (2) Anderson 40s, (1) Anderson 12, and (2) Anderson 58st’s
Lifelines/Stanchions/Pulpits: All welded aluminum railing, more than a meter in height. Fitted with additional lifelines and netting to meet US Coast Guard requirements for an inspected vessel
Canvas Covers/Awnings: Sail cover and Sun cover on Genoa and main
NAVIGATION/ELECTRICAL SYSTEM
Icom VHF all heavy duty co-axle cable
Ritchie Compass
Voltage: 12 VTDC
Wiring Type: Stranded marine grade copper
Batteries: (1) group 38, and (2) 8-Ds, 2 – 8D batteries with emergency battery
Vented Box/Tops/Installation: Yes, not required
Isolator/Shut-Off Switched: Selector switches fitted
Control Board/Circuit Panel: (18) Breaker protected DC circuits, with main, volt and ammeter
Interior Lighting: All operational
Battery Charger: Phase Three 50 amp battery charger
Alternators: Integral with engines
Electrolysis Protection: Integral with inboard engines
All navigation lights deck light, steaming, anchor lights and tri-color
One cabin light in each of the 10 main compartments
Wind Instruments: Windex only
Bell: Yes
Search Light: Yes, handheld
Other: Loud hailer
PLUMBING
4 manual bulkhead mount bilge pumps
Head with 55 gallon holding tank with gravity fed discharge and pump out
2-25 gallon water tanks for sink in head
2 Lovett electric bilge pumps with high water bilge alarms
Thru-hull Connection: (4) below waterline
Valve Type: Bronze, cone valves with back up Plates
Heads/Type (1) PHII Marine Sanitation Device: Wood and epoxy holding tank fitted and plumbed
Bilge Pumping Systems: (2) submersible with float switches, (4) fixed mounted manual
Water Tank(s)/Shape/Location: (1) rectangular, fitted to sole in “Galley”, port ama. (2)
Capacity: 50 gallons
MACHINERY
2- 75 HP engines
2-55 gallon diesel storage
Type/Location: Prop and shaft/Stern Engine Rooms
Make/Model: Yanmar
Vessel Speed: Estimate 15 kts
Gear Type: Integral
Cooling System: Integral
Exhaust System: Integral
Fuel Filters: Fuel/water, Racor
Fuel Lines and Connections: Approved hoses and fittings
Fuel Tank(s)/Shape and Location: (2) U.S.C.G. Approved fuel tanks inside stern deck
Material: Aluminium
Capacity: 55 gallons each
Stern Tube Bearing: Integral
Shaft Log: Integral
Propeller(s) Shafts: Integral
Propeller(s): 3 blade max props
Steering System: Chain to cable over sheaves, with tie rods to each internal tiller.
SAFETY GEAR
Aluminum life rail with welded stations
Aluminum stairway to the water
8- watertight compartments
2- 10 lb. B2 Fire Extinguishers, 1 A-2 at helm
2- fifteen passenger S.O.L.A.S approved buoyant apparatus
Life Jackets/No. Type: (80) Type Is with waterlights, and (8) Child Type
Throwable Buoy(s)/Location: (2) Ring buoys on aft railings
Distress Signals: US Coast Guard and SOLAS certified distress flares
First Aid Kit: U.S.C.G Approved
EPIRB: 406, with hydrostatic release
Life Rafts: (4) 15 person life rafts
Oil/Waste Placards
Built-In System/Location: Fire pump with hose fitted Portable, No. and Class: (2) 4A-60BC and (1) 1A-10BC
Location of Fire Stations: One in port ama, one on main deck and one at helm
ACCOMMODATIONS
Head, sink and forward main cabins
25 seat cock-pit
Aluminum rail seats slatted with Marine Hardwood
Counter space in all companionway compartments for crew prep
4- double berth sized storage compartments
Semi-Enclosed cockpit with lexan window option
Wet-bar and shelf for storage of drinks
Center navigation console
WOOD/EPOXY
Wood is relatively easy to cut and shape and almost everyone has some basic knowledge and experience of working with it. It is aesthetically satisfying to work with because of its inherent beauty. Its stiffness, light-weight, and resistance to fatigue give wood advantages over other materials for boatbuilding.
Besides its advantages, there are also some well-known disadvantages. Specifically, wood is subject to rot. It also shrinks and swells with moisture and temperature changes. And it looses some of its strength and stiffness after absorbing moisture. The root cause of these problems is the passage of moisture in and out of the wood cells.
To a very great extent, the use of wood/epoxy system overcomes the above problems. Boats built in this system have all of their joints bonded with, and all of their surfaces encapsulated in epoxy resin. Thus every piece of wood, both inside and the outside of the hull, is covered with a barrier coating of epoxy resin through which no significant amount of air or water can pass. The result is that the moisture content of the wood is stabilized. This stabilization in and of itself means that there will be little shrinking or swelling of the wood. The level at which the stabilization occurs, and at which it remains, ensures a continuation of design strength and stiffness. In addition, it prevents rot not only by stabilizing the moisture content, but also by restricting the oxygen supply to the wood surface.
Plywood: As already mentioned, wood is anisotropic; it has very little tensile strength across its grain. To overcome this shortcoming, and to increase its strength and stiffness in relation to its weight and volume, the practice of cutting wood into thin sheets and then bonding the sheets together with the grain going in perpendicular directions in alternating layers is used. The individual sheets, before they are bonded to each other in layers, are known as veneers. Veneers come in a variety of thicknesses, in a variety of quality grades and from many species of wood. A bonded lay-up of at least three plies of veneers is known as plywood.
Only marine grade plywood should be used for boatbuilding. (Conforming to BS1088 or BS6566). Exterior grade plywood uses the same glue as marine ones but in marine grade only a minimum of voids are allowed in the core and in general better quality veneers are used. In most cases, it has more plies for the same thickness that makes it stronger, but also more difficult to bend.
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