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50 St Francis 2010 Boat for Sale

ASKING PRICE: $735,000 Watch Price

Charleston, SC

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50' St Francis 2010

Proven Offshore Pedigree. Thoughtfully Modernized. Ready for the Next Adventure.

For sailors seeking a proven offshore cruising catamaran with modern systems and a documented bluewater history, Octavia represents one of the finest examples of the St. Francis 50 available on the market today.

US-flagged and duty-paid, she has spent recent years cruising extensively along the U.S. East Coast and throughout the Bahamas and Caribbean under the care of experienced owners who have continually invested in meaningful upgrades that improve reliability, efficiency, and long-term livability.

Commissioned new by her original owners as Sulliere and built by St. Francis Marine in South Africa, Octavia completed both Atlantic and Pacific crossings before continuing years of Caribbean cruising. With major investments already made in her electrical systems, rigging, sails, navigation equipment, and onboard systems, she offers the opportunity to step aboard a proven offshore yacht that is prepared for extended cruising.

Designed by renowned South African naval architect Angelo Lavranos, the St. Francis 50 earned Cruising World’s Cruising Catamaran of the Year award in 2008 for its blend of offshore capability, sailing performance, and liveaboard comfort. Built as a semi-custom yacht using vacuum-infused vinylester construction over Corecell foam, the design remains in production today as the St. Francis 500—a reflection of its enduring design and continued appeal among experienced bluewater sailors.

Rather than pursuing interior volume at the expense of offshore capability, the St. Francis 50 was designed from the outset as a serious passagemaker—one that sails efficiently, inspires confidence at sea, and remains comfortable to live aboard for extended periods. Octavia builds on that foundation with thoughtful modernization and equipment selected by owners who have actively cruised the boat.


Denison Yachting is pleased to assist you in the purchase of this vessel. This boat is centrally listed by The Multihull Company.

Denison Yacht Sales offers the details of this yacht in good faith but can’t guarantee the accuracy of this information nor warrant the condition of this boat for sale. This yacht for sale is offered subject to prior sale, price change, or withdrawal from that yacht market without notice. She is offered as a convenience by this yacht broker to its clients and is not intended to convey direct representation of a specific yacht for sale.

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50' St Francis HIGHLIGHTS

50' St Francis additional information

Specifications
  • Cruising Speed: 7.5 kn
  • Maximum Speed: 10 kn
  • Beam: 26' 3''
  • Hull Material: Fiberglass
  • Max Passengers: 12
  • Cabins: 4
  • Heads: 3
Sailing And Performance

Designed for efficient passagemaking and comfortable short-handed sailing.

  • Twin 75 HP Yanmar 4JH4-TE turbo diesel engines 
  • Yanmar SD60 saildrives 
  • Three-blade Varifold folding propellers 
  • North Sails 3Di mainsail and genoa 
  • LeisureFurl in-boom mainsail furling system 
  • Asymmetrical spinnaker 
  • Storm staysail 
  • Standing rigging replaced in 2021 
  • ProFurl headsail furling system 
  • Lewmar 65 electric primary winches 
  • Harken UniPower 900 secondary powered winches 
  • Protected raised helm with excellent visibility 
  • Opening glass helm windshields with windshield wiper 
  • Primary sail controls led directly to the helm 
  • STIDD double helm seat 
  • MaxPower retractable bow thruster 
Modern Electrical And Energy Systems

A fully integrated Victron electrical platform designed for extended off-grid cruising.

  • 14 kWh Victron Lithium NG house battery bank 
  • Four 300 Ah Victron Lithium NG batteries 
  • Victron Quattro 5000 230V/12V inverter/charger, newly replaced 
  • Victron Cerbo GX monitoring 
  • Victron battery management system 
  • Victron MPPT solar charge controllers 
  • Approximately 2.8 kW of solar generation from six 470-watt panels 
  • Custom stainless-steel solar arch 
  • Cummins Onan 9.5 kW generator 
  • High-output charging system 
  • Worldwide-connect shore power system 
  • Dedicated engine, bow thruster, and generator batteries 
Navigation And Communications

Equipped for confident coastal cruising and offshore passagemaking.

  • Two B&G Zeus II 12-inch chartplotters at the helm 
  • B&G Zeus II 12-inch display at the navigation station 
  • B&G 4G radar 
  • B&G AC42 autopilot 
  • B&G NAIS-400 AIS transceiver 
  • B&G wind, depth, and speed instrumentation 
  • Icom IC-M506 VHF radio with remote microphone 
  • Icom IC-M801E SSB radio 
  • Starlink satellite internet 
  • FLIR thermal imaging camera 
  • GPS 
  • Handheld VHF 
  • Integrated engine and vessel monitoring 
Cruising And Liveaboard Comfort

Designed for long-term ownership rather than occasional weekends aboard.

  • Four-cabin, three-head layout 
  • Four queen berths 
  • Starboard aft cabin convertible between office and guest accommodation 
  • Bamboo interior joinery 
  • Teak-and-holly cabin soles 
  • Extensive cabinetry, lockers, drawers, and storage 
  • Large salon with convertible dining table 
  • Dedicated forward-facing navigation station 
  • Three refrigerators 
  • 115-liter Minus 40 deep freezer 
  • Large cockpit cold box 
  • Smeg dishwasher 
  • Four-burner Eurogas propane stovetop and oven 
  • Microwave 
  • Ice maker 
  • Camec washer/dryer 
  • Two 16,000 BTU Webasto reverse-cycle air-conditioning systems 
  • New starboard air-conditioning unit installed July 2026 
  • Three showers, including a separate aft shower in the starboard hull 
  • Hot-and-cold transom shower 
Off-grid Cruising Systems

Supporting extended cruising away from marinas.

  • Spectra Newport 700 Mk II watermaker with MPC 5000 controller 
  • Approximately 30 gallons per hour water production 
  • 354 gallons of diesel capacity 
  • Approximately 356 gallons of freshwater capacity 
  • Two large freshwater tanks 
  • Two holding tanks 
  • Freshwater and saltwater anchor washdown 
  • Interior access to both engine compartments 
  • Quick-access hatches for daily engine inspections 
  • Dual Racor fuel filtration 
  • Fuel-transfer capability 
  • 50-liter electric hot-water heater also heated by the starboard engine 
  • Four electric bilge pumps 
  • Two manual Whale bilge pumps 
  • Organized and accessible machinery installations 
Cockpit, Deck, And Ground Tackle

The exterior layout separates sailing operations from the primary living spaces while providing secure movement and extensive storage.

  • Large protected cockpit beneath a rigid hardtop 
  • Custom cockpit cushions 
  • Folding davit system 
  • Dedicated aft deck dinghy platform with removable chocks 
  • Extended sugar-scoop transoms 
  • Port-side swim ladder 
  • Wide side decks with substantial handholds 
  • Two large foredeck storage lockers 
  • Two comfort-mesh trampolines 
  • Unique drop-down stairway between the trampolines for forward water access 
  • 40 kg Rocna primary anchor 
  • Approximately 200 feet of 3/8-inch galvanized chain 
  • Maxwell electric windlass 
  • Maxwell AA560 chain counter 
  • Windlass control at the helm 
  • Fortress secondary anchors 
  • Freshwater and saltwater washdown systems 
Diving And Adventure Equipment

One of Octavia’s most distinctive cruising features.

  • Brownie dive compressor 
  • Four steel scuba tanks included 
  • Dedicated aft deck scuba-tank locker 
  • Remote fill station beside the tank storage 
  • Quick-connect compressor fill hose 
  • Tank-filling capability without removing the cylinders from their locker 
  • Tank storage positioned beside the dinghy and swim access 
  • Two kayaks 
  • Aft deck dinghy platform 
Safety Equipment

  • Viking eight-person self-righting liferaft 
  • Liferaft certification valid through August 2028 
  • ACR 406 MHz GPS EPIRB 
  • Seago Moby man-overboard recovery system 
  • Fourteen Type I and Type III personal flotation devices 
  • Two Type IV throwable devices 
  • Five portable ABC fire extinguishers 
  • Two Fireboy automatic engine-room fire-suppression systems 
  • Electric and manual bilge-pump systems 
  • Parachute sea anchor and rode 
  • Drogue 
  • Emergency tiller 
  • Navigation, steaming, and anchor lights 
  • First-aid equipment 
  • Spare parts and cruising tools 
Recent Modernization

Rather than simply maintaining the boat, the current owners have continually invested in improvements that enhance reliability, energy independence, sailing performance, and ease of ownership.

Recent highlights include:

  • Victron Lithium NG electrical conversion 
  • New Victron Quattro 5000 inverter/charger 
  • Expanded 2.8 kW solar array 
  • Custom stainless-steel solar arch 
  • Victron Cerbo GX monitoring and integrated battery management 
  • North Sails 3Di mainsail and genoa 
  • Standing rigging replacement in 2021 
  • ProFurl headsail furler 
  • Modern B&G navigation suite 
  • Starlink satellite internet 
  • FLIR thermal imaging 
  • MaxPower retractable bow thruster
  • New starboard Webasto air-conditioning unit installed July 2026 
  • Custom cockpit cushions 
  • Updated trampoline hardware 
  • Continued preventative maintenance and system improvements 
Broker’s Comments

Some yachts are prepared for sale. Others are prepared to cruise.

Octavia falls firmly into the second category.

Her owners have spent years cruising the U.S. East Coast, Bahamas, and Caribbean, making improvements based on experience underway and at anchor rather than on a dockside wish list. Many of her most valuable upgrades are not cosmetic—they are the systems experienced cruisers appreciate after leaving the marina: substantial renewable energy, modern lithium storage, reliable sail handling, strong communications, generous tankage, onboard water production, accessible machinery, and the equipment needed to remain independent for extended periods.

The St. Francis 50 continues to command respect because its strengths extend beyond any single specification. Its construction, bridgedeck clearance, balanced hull form, protected helm, centralized machinery, practical systems, and interior service access all reflect the priorities of a yacht designed for offshore sailing and long-term ownership.

Octavia has already crossed both the Atlantic and Pacific Oceans. She has subsequently been modernized without compromising the integrity and purpose of the original design. For sailors seeking a proven offshore platform with much of the expensive refit work already completed, she provides a compelling alternative to newer yachts that may still require years of commissioning and upgrades.

Whether your plans include exploring the Bahamas, cruising the Caribbean, living aboard while working remotely, or setting out across an ocean, Octavia has already demonstrated that she is capable of the journey.

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