52' Seahorse 2009


52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009 52' Seahorse Mandarin-52 2009

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52' Seahorse Mandarin-52 2009

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Broker Description

Unique Blue Water vessel – fully self-contained – can cruise to any locationAll Weather pilot house – heated and air conditionedFull keel design w/protected running gearLarge cockpit and aft deck with convenient swim platformAir Conditioning – Heat – Bow Thruster – Water makerExtra capacity refrigerator/freezersSimple Sail PlanLarge Master stateroom w/queen centerline berthAdditional double stateroom plus separate officeTwo Heads w/showersThis is an ideal live aboard or long-term cruising vessel.She was designed and built by one of the most reputable builders of serious blue water vessels, who are still building boats today.See FULL SPECS for extensive equipment list and more detailsContact listing broker to discuss further

MK Yacht Sales would love to guide you through a personal showing of this 52' Seahorse Mandarin-52 2009. This yacht for sale is located in Simpson Bay Saint Martin and priced at $350,000. For a showing please contact us by filling out the form on this page and we will get back to you shortly!






Cruise Speed:

Not Listed

Max Speed:

Not Listed

Range NMI:

Not Listed


15' 0"

Engine Details:


Engine 1:

210 HP

Engine 2:

Engine Fuel:


Fuel Capacity:

715 Gallons

Water Capacity:

350 Gallons


Vessel has (3) private cabins, and (2) heads. One of the cabins is used as an office. Forward are 2 berths (V-berth cabin), Aft is a large owners suite with queen berth

  • Back lightedcustom-made circuit breaker panels usinghigh qualitybreakers
  • AC/DC system designed to receive most US and European electrical inputs (120V-1P, 250V-50A-2P [US 240], 250V-32/64A-1P [EU 240]). Includes all adapter plugs
  • Breaker panels put electrical controls where needed.Master breakers are GFI (RCB) type for safety at
    • An operation panel is located in the pilothouse (described in pilothouse section of these specifications);
    • the house panel is located in the main salon near the engine room door.
  • input.
  • 24-volt interior lighting; IMTRA LED lighting fixtures. Lots of indirect lighting to minimize the "workshop" lighting style found on most cruising boats.
  • All Seahorse Marine installed wiring is multi-strand tinned copper boat cable. Wires have color or marker codes for easy tracing. AC wiring is sized to the more demanding 110-volt requirements on boats built for 220-volt systems to maximize conductivity, serviceandlongevity.
  • Wireruns in conduit and all runs, except the bilge pumps, are located as far above the waterline as possible. All wire runs including those along the shear are easily accessible.
  • AC shore connector (250-50A) fitted to starboard side ofpilothouse.
  • AC receptacles throughout, 14 total.
  • DC sockets installed in cockpit and pilothouse, USB sockets in MSR P&S.
  • Copper bonding strip installed the length of the keel to four zincs at the stern.
  • All chain plates and through hulls wired to bonding strip and keel castings.
  • International navigation lights and mast mounted deck lighting installed.
  • Security flood lighting; Red interior night safety lighting and stern platform courtesy lighting installed.
  • Pilothouse overhead lights have red and white bulbs. Strobe, tri-color and anchor light at mast head. Optional electronic and entertainment equipment can be planned in advance with owner so necessary wiring, grounds and cabinets can be built in. A counterpoise reflector for SSB can be molded into the deck lay-up to the owner's designed. VHF antenna at mast head

This custom-built MANDARIN 52 MOTORSAILER was specified by construction drawings approved by Seahorse Marine and reviewed by both the current/commissioning owners and an external Navel Surveyor multiple times during construction. She has a modified Chef’s Galley within the salon rather than in the companionway as per the standard Mandarin 52 configuration. Redundancy on major systems (electronics, autopilots) incorporated at designstage.CONSTRUCTION SPECIFICS: Cleargelcoatwas used below the water line and the first mat layer is installed resin rich usingvinylesterresin for blister control. Bottom sealed withdoubleepoxy seal. Deck and topside lay-up include outside laminates. 3/4" balsa core for stiffness and temperature insulation and mat with double roving inside laminate. Overlapping and interlaced double lapping at stem and keel and UDR reinforcements at chainplates and stringer caps for extra strength. Bottom solid lay-up varies from 5/8" to 1 1/2". Quality bottom paint has been maintained -. Hand roller used for proper resin/glass ratio and to minimize air encapsulation. Hull to deck joint bedded in epoxy, bolted and double bonded inside and out with UDR. Interior construction to allow easy access tohullto deck joint. Four large FRP hull stringers. UDR reinforced and built high enough to act as saddles for sole plates. All interior furniture heavily glass taped to hull for additional reinforcement. All plywood WBP grade or higher. Exterior teak brightwork limited to cockpit edge. Caprail has stainless trim. Heavy duty hull rub rail with polished stainless cap. Vessel painted with LPU.

LOA …………….. 52 ft ………. 15.85 meterLWL ……………. 46 ft 2 in… 14.1 metersBEAM …………. 15 ft ……. 4.57 metersDRAFT ………… 5 ft 2 in …. 1.6 metersDISPLACEMENT …44,000 lbs.. 19,958 kiloBALLAST ………….. 7,000 lbs … 3,175 kiloBRIDGE CLEARANCE .62 ftTANKAGE: Fuel ……. (3) total 715 gal ……… 2706 litr Water…. (2) total 350 gal ……… 1325 ltr Holding.. (2) total 80 gal ……… 303 ltrEngine ………… Iveco NEF67 210 JHP diesel (1422 hours)Generator ----- Northern Lights 9 kw (746 hours)Wind Generator ..D400 Wind generatorSolar ,…….. 2x 135-watt KYOCERA solar panels

ELECTRICAL:Separate heavy-duty engine, gen-set and house batteries connected by vapor proof master switches. Standard house batteries are four 8D 200 AH AGM deep cycle type, 400+AH total at 24V.Electrical Shore Power Input:120V [US120-30A], 220V (2P) [US250-50A], or 240V (1P) [EU 240-64A]Electrical Output Circuits on board:

  • 24v, 12v, 120V, 220V (1P), 220V (2P) converted and distributed via transformers and inverters onboard giving maximum flexibility in dockside input. 12KW Toroidal isolation transformer


  • RAYMARINE (8") C80 color 4KW radar (mast mounted), plotter, GPS, DM300 sounder, video, MOB Tags [at helm]
  • RAYMARINE (7”) C70 color 2KW radar (Aft post mounted), plotter, GPS, AIS [at pilothouse map table] (Independent and redundant system)
  • RAYMARINE ST60 Tri-Data
  • ICOM 602 VHF with hailer and masthead VHF antenna
  • ICOM 802 SSB with AT140 tuner and Shakespeare 23' SSB antennas
  • IRIDIUM 9505 satellite telephone wiithexternalmarine antenna
  • 2x COMNAV Commander (Mono display) autopilots with redundant independent SPUs, Fluxgate compasses, and reversing pumps

ENGINE: IVECO NEF97-MMN28.1 210 HP 6-cylinder turbo diesel with TWINDISC marine transmission. Complete engine instrumentation including high temperature, low oil pressure, and cooling water flow alarm. Special soft engine mounts with engine mounting separate from the vessel's main stringers to nsurevibration isolation. Two inchstainless shaft connected to a thrust bearing and then to the engine through a splined universal joint drive shaft. Sea chest withstrainerand stainless ball type sea-cocks on all inlets. Primary and secondary fuel filters. Drip pan under enginewith oil trap overflow. Bronze underwater gear except for stainless shaft. 5-Blade MAXPROP 32” Whisper Folding Propeller, fully tuned and adjusted.OEMFour bladedpropeller properly balanced and sized toselectedengine as spare. Custom designed water-cooled muffler with relieved underwater exhaust. Dual, large capacity engine room blowers with noise isolated vents. FRP fuel tanks well baffled and braced. Stainless steel ball valves at each end of fuel lines. Large cruise tanks double vented with 2", not 1 1/2", deck fills for easy filling. FRP fuel tanks enclosed in 18mm plywood saddles. Thick side and baffle constructionisdouble lined with 1 1/2oz mat usingisophalicresin.284 galloncruise tanks, P&S;145 gallonoperations tank inkeel. Special acoustical insulation surrounding engine room.

Galleysinkan oversized single basin withfaucetincluding spray hose. LPG stove w/oven and broiler with sea rails, and twin 24v refrigerators. Galley over 8’ long and designed for both form and function. Lots of storage ingalley, under soles and inworkshop.Galley has teak cabinets and trim, lots of counter space.Full chef’s galley with 2x24v fridge/freezers, large deep single sink and LPG 4 burner stove with oven and broilerLarge 3-plate deep freeze installed with24-voltcompressorGranite countertops in galley

HULL LIGHTING AND VENTILATION: Eleven opening hull ports with insect screens and storm covers.Eight opening LEWMAR Ocean deck hatches. Eight non-opening windows in hull plus pilothouse windows (10mm glass forward and side, 8mm aft.Storm door (keyed) atmainentrance fromcockpitto pilothouse Three deck prisms. Natural and forced ventilation inhullfor comfort when conditions dictate a closed boat.DECK: Solid stainless pulpits and tubinghand rail(not wire) fully groundedStainless-steel heavy-duty cleats and chocks, not chrome bronze. Handrails and cast deck gear 316 stainless. Boarding gates port, starboard withfold downboarding ladders.Bow pulpit with dual rollers. Heavy duty double anchor chute with bronze rollers. MUIR electric anchor windlass with 70LB ULTRA anchor and 350’ ACCO 3/8" hi-test (G4) chain rode. Deck and helm switches for up and down operation; digital chain counter athelm.The Mandarin 52 is one of the world's only blue water cruising yachts which will also navigate most of the European and U.S. canal systems. A deep sided and safe cockpit, fully scuppered with a sun and rain shade at pilothouse door. Ten deck and stern platform storage boxes with scuppered secure covers. Two dedicated tolineand sheet storage, very important on a motorsailer. Shower fixture installed attransom, hot and cold water. Strong LEWMAR Ocean hatches in deck and pilothouse. Each cabin has an escape hatch. Stainless steel ports inhullwith strong tempered glass.Eleventotal. Faux Teak cockpit seats using an epoxy bedding system for ease of maintenance.Molded-innon-skid pattern on deck. Three deck prisms.PILOTHOUSE:Pilothouseis fully scuppered with storm boardcompanion wayhatch tomainsaloon for extra safety. Engine controls and steering inpilothouse. Marine circuit breakers for all boat operations and for electronics installed in the pilothouse. Safety monitor panel to givevisualand audio indication of the status of all the systems in the vessel. Basically allows the person on watch to know everything that is happening in the boat with instant fault warnings. Audio warnings for high bilge water, engine raw water flow, high engine room temperature, water leaks at the intake trunk area (covers engine room intakes, all water filters, fresh and raw water pumps, engine exhaust and water heater). Visual indication ofanyelectric pump running: audio pump overrun alarm if any pump runs over one minute (can be adjusted up to three minutes). Audio alarms can only be defeated by a key switch. Teak helm wheel. Pantograph windshield wipers withfreshwater wash. Forward windshields are heavy 10mm safety glass and slanted pilothouse design reduces water pressure on glass and boat structure in a serious green water situation. RICHIE navigation compass.COCKPIT:Sun Awnings (2017)A deep sided and safe cockpit, fully scuppered with a sun and rain shade at pilothouse doorStorm door (keyed) at mainentrance from cockpit to pilothouseStern platform designed as an "open cockpit" with rails, steps to back deck and storage boxes which can be used for seats when underway. The aft gate folds down to become a boarding ladder. A great place for fun and fishing. A dinghy outboard can be easily stored in one of the aft platform storage boxes.

  • SIDE-POWER 24-volt Electric Bow thruster with Joystick and thumb-switch on the throttle for easy close maneuvering
  • 9KW NORTHERN LIGHTS Genset with sound shield;
  • WEBASTO diesel heating system, five outlets;
  • 2x 16,000 BTU A/C with heat option (Salon/Pilothouse & MSR)
  • 24-volt VICTRON inverter/charger;
  • BALMAR High output 24-volt secondalternator on enginewith multio-stageregulator;
  • FLOSCAN Cruise master fuel use meter with totalizer;
  • 2x 135-watt KYOCERA solar panels with MORNINGSTAR regulator and remote panel
  • D400 Wind generator with independent regulator integrated into electricalsystem
  • VILLAGE MARINE 220V 800gpd custom watermaker, with remote panel
  • BOSCH Washer and Dryer (separate units-Axxis models)
  • PYLE automotive stereo with 6high qualityspeakers;
  • Built-in large deep freezer box, 5" insulation, with NOVACOOL 24v 3-plate system.
  • Four-burner LPG stove, solenoid shutoff with twin sensor leak monitor;
  • SHAKESPERETV and Stereo antenna with booster and dock cable inlet;
  • JABASCOremote control spot lightfor security;
  • Ships safes
  • integrated RAYMARINE cameras aft and in engine compartment viewable on helm E80 system
  • REVERSO Oil Change system hard-plumbed to the Main, Genset, and Transmission for easyoil change from within the Engine Room

Interior layout custom changes and special woods and colors; Complete set of hatch covers, winch covers, and house and deck shade/awnings and canvas workCockpit and pilothouse upholstery new (2017) with SUNBRELLA fabricsVessel painted with LPU.

Workshop/Engine room with all mechanicals and workshop with natural light and ventilation provides standing room and management of the systems. Interior is teak finish with multi-coat satinglassvarnish finish. Solid Teak cabinets doors, wardrobes, handrails, drawers, etc. throughout. All doors are louvered for ventilation. All sole plates latch down. Teak and holly floors in accommodation areas. Galley with teak cabinets and trim, lots of counter space.Granite countertops in galley and both heads Deep foam cushions withhigh qualityfabric coverings. White foam Vinyl acoustical headlinerFiberglass planking hull side liner in galley, salon, and MSR. Hull ports are opening type with insect screens and Stainless-Steel Storm hinged storm covers. Lots ofhandand grab rails.HEADS: Each head includes toilet, shower, basinandstorage. Aft head hasfull sizetub. Electric toilets with holdingtankand overboard or deck drain. Each head has port and power ventilation on timer switches. Mirrors are fitted in heads as well asforwardsleeping cabin.Granite countertops in both heads

ENGINE: IVECO NEF97-MMN28.1 210 HP 6-cylinder turbo diesel *(SEE MORE DETAILS IN ENGINE SPEC BELOW)MUIR electric anchor windlass with 70LB ULTRA anchor and 350’ ACCO 3/8" hi-test (G4) chain rodeSIDE-POWER 24-volt Electric Bow thruster9KW NORTHERN LIGHTS Genset with sound shield;WEBASTO diesel heating system, five outlets;2x 16,000 BTU A/C with heat option (Salon/Pilothouse & MSR)VILLAGE MARINE 220V 800gpd custom water makerPlumbing:Two water tanks, approximately 350 gallons total,.Fresh watersystem uses copper tubing,Activated carbon water filters (SEAGULL IV and GE) at galley tap. Stainless ball type sea-cocks on allthru hullsbelow the waterline. Hot water heater with 220V electric and engine heat exchangerHigh qualitybath and galley fixtures.Shore water attachment with regulator installed.

Recently bottom painted – February 2019 – Seahawk Islands 44Standing rigging replaced 2016 with Hayn fittings

Owners personal effectsTender and outboard

  • 210 HP IVECO Marine Diesel (Cummins B-Block Family)
  • Flexible motor mounts with flex shaft and thrust bearing
  • 12KW Toroidal isolation transformer
  • Custom WALBRO/RACOR fuel polishing/transfer/priming system
  • MUIR Electric 24-volt windlass with 350" 3/8" G4 chain
  • Three anchors: ULTRA 70lb with ULTRA Swivel, Galvanized Plow, and FORTRESS.
  • 140% ELLIOT-PATTERSON (2014) and 120% DOYLE (2018) roller furling genoa Foresail.
  • Mainsail with convenient and reliable electric HARKEN furlerand reefing using athwartships boom systemincludes a large self-tailing sheet winch;
  • 9 HARKEN winches, self-tailing where appropriate (three electric winches)
  • 5-Blade MAXPROP 32” Whisper Folding Propeller, fully tuned and adjusted.
  • VHF Antenna, anchor light andstrobe, and grounded lighting rod at mastheadDeck design includes good fresh air ventilation and 8 deck lockers, plus cockpit insulated drinks locker with 24vNOVACOLDcompressor and cold plate;
  • Deck wash pump (salt water) with spigots at both bow and stern and second hose at bowfor anchorwashdown
  • Heavy duty rub rail onhullwith stainless cap
  • Heavy duty 24-volt engine alternator
  • 3000-watt 24-volt VICTRON inverter/charger with remote control panel and 460 AH, 24-volt AGM house battery bank (4x8D);
  • FLOW-SCAN engine fuel use meter with totalizer, LPH or GPH;
  • HART Tank-tenderpneumatic tank gauge with purge-valve
  • 3 Pantograph windscreen wipers
  • Heavy duty (2xBA-200-9) hydraulic steering rams and pumps configured as two independent/redundant systems will custom manifold in mechanicalworkroom for easy changeover
  • Full chef’s galley with 2x24v fridge/freezers, large deep single sink and LPG 4 burner stove with oven and broiler
  • Large 3-plate deep freeze installed with24-voltcompressor
  • Hot and cold fresh water shower fixture on swim platform;
  • Four 50’ dock linesand two 25’ spring lines of 1-inch multibraidnylon
  • RICHIE navigation compass
  • Electric heads, 2x TECMA Silent flush
  • Deck gear and hand railsall 316-quality stainless
  • Custom Stainless/Fiberglass hardtop for cockpit with hatches andMARKELONforward enclosure
  • Deck to hull joint double bonded inside and out with UDR
  • Fire resistant resin used in fuel tanks with Isophalicdouble mat inside liner; Vinylester resin first bottom laminate and double epoxy seal for blister protection
  • Quality anti-fouling paint applied regularly (last February 2019)
  • Clear, not colored,gelcoatused in hull sides or bottom;
  • LPU finish, in Oyster White with Burgundy trim
  • MAST AND SAILS: Standard mast includes double spreaders and double backstays with furling main, Genoaoptional staysail. There is no boom and the furling main is sheeted to an athwartship spreader bar with full beam HARKEN traveler mounted between the double back backstaysstays. A simple and safe proven system. Full walk around aft deck without interference from stays. (In boom furling optional) Stainless steel rigging with high quality turnbuckles, 10MM" upper shrouds and fwd and back stays. Roller furling/Reefing behind the mast main and 120% & 140-% furling genoas included. Staysail with staysail stay, halyard winch, halyard and furling installed. Deck and sail handling gear to be appropriately sized for blue water cruising. Three large Harken winches for main and genoa, 6 additional Harken winches. Heavy duty genoa sheet turning blocks which can be used when towing warps. 140% ELLIOT-PATTERSON (2014) and 120% DOYLE (2018) roller furling genoa Foersale.
  • Mainsail with convenient and reliable electric HARKEN furler and reefing using athwartships boom system, includes a large self-tailing sheet winch;

Standing rigging replaced 2016 with Hayn fittingsWINCHES; Five (5) Harken winches on the cockpit, the largest three aft are all electric. The aft center is the main sheet, the two other aft power winches are used with the foresail (usually the Genoa), then there are two more manual winches on thecockpit for the staysail. There arefour more smaller winches on the mast forhalyards and such, for a total of 9 winches

Vessel is entered from wide swim platform to full beam aft deck. From here it is easy access to the cockpit through cutouts in the coaming.A wide doorway opens from the cockpit into the Pilothouse, which contains a dinette, chart table and helm. There is a 360-degree view from the pilothouse which lends to a bright and airy feel as well as excellent site lines to all sides for the helmsman.A curved stairway leads down from the pilothouse to the lower Salon which contains a second inside dinette, with curved seating, galley, and extensive storage cabinetryForward of the Salon is a private cabin with V-berths, and lots of storage. There is a watertight bulkhead between the salon and forward cabin with a proper watertight door.Amidships is the engine room with excellent access and room within.Also amidships is the office, and aft of the Salon is the large owner’s suite with centerline queen berth.Entire vessel is finished in rich woods with opening hatches and ports throughout for ventilation.Construction specifications dictated headroom at 6”3 throughout (much more in Salon).

  • Two water tanks, approximately 350 gallons total, with ball-cockshut off valves and vents designed to prevent salt water contamination. Water tanks coated with epoxy certified for potable water use. A 50' hose fed by raw water pump is located in a cockpit locker and a second hose is at Bowfor anchor wash. Fresh watersystem uses copper tubing, not plastic. Fresh and raw water pumps can easily be interchanged in case of failure. Activated carbon water filters (SEAGULL IV and GE) at galley tap. Stainless ball type sea-cocks on all thru-hullsbelow the waterline. Double all stainless clamps on all hoses below the waterline. Hot water heater with 220V electric and engine heat exchanger for domestic water supply. High qualitybath and galley fixtures. Shore water attachment with regulator installed.
  • BILGE PUMP: Three bilge pumps total, warning light and audio overrun alarm on all electric pumps, including fresh and raw water. Two automatic electric bilge pumps, minimum 3000 gallons per hour each. Large Titan diaphragm manual bilge pump installed.Bilge waterled to small sump fwd aft which epoxy coated to protect hull laminate. Second electric bilge pump as high-water backup.

United Yacht Sales is pleased to assist you in the purchase of this vessel. This boat is centrally listed by Denison Yachting. It is offered as a convenience by this broker/dealer to its clients and is not intended to convey direct representation of a particular vessel. The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.

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