Engine
Cummins 4B3.9
Total Power
80hp
Engine Hours
3723
Class
Sail Sloop
Length
15.60m
Year
2000
Model
Mummery 51 Expedition Yacht
Capacity
-
Yoti "Sailing as it should be"
Boat Details
Description
Introducing Capistrano, a Mummery 51 Expedition Yacht, launched in 2000 and now exclusively for sale with YOTI in Manly, Queensland.
Capistrano is a purpose-built 51ft aluminium expedition yacht, constructed over a decade by a master New Zealand boatbuilder as his personal vessel. She combines rugged strength with elegant design, intended for high-latitude cruising and long-term liveaboard comfort. With a successful circumnavigation via Cape Horn, South Georgia, and the Cape of Good Hope, she is a proven bluewater performer with exceptional systems and craftsmanship throughout.
Built to expedition-grade standards, Capistrano features a heavily framed aluminium hull with integral fuel tanks (total of 1,300l), top-tier insulation for polar conditions, and ventilation suitable for the tropics. Her deck fittings are mounted to her solid and glassed-over Kauri timber coach house and cockpit, avoiding corrosion issues. Many onboard components are custom-fabricated, and all systems are either commercial-grade or over-specified.
Her electrical system is meticulously engineered--fully isolated, conduit-wired, labelled, and bonded, with watertight junction boxes and a galvanic isolator. Propulsion is provided by a naturally aspirated Cummins diesel engine, with a thrust bearing carrier. A quiet, reliable Lugger generator sits on a stainless tray, in the well-insulated and fully accessible engine room. Fuel lines are stainless steel and isolated, while dual water pumps and 4 stainless steel water tanks (total 1,000l) ensure redundancy and capacity for long-range cruising.
Below deck, the interior is finished in American white oak and white epoxy, creating a bright and modern living space. The saloon features leather seating, plenty of opening hatches, and eight fans throughout the vessel ensure excellent airflow. Accommodation includes a walk-around double berth in the spacious master cabin and a cleverly designed double guest cabin layout that sleeps five. All lighting is LED. The central galley includes Corian benchtops, front-loading fridges, a top-opening freezer, and ample food storage. The heads have macerating electric heads, and durable epoxy finishes for easy maintenance.
Navigation is fully integrated with a complete B&G electronics suite, including plotter, radar, AIS and autopilot--controllable from both helm and nav station. The nav station includes a dedicated inverter for the nav station computer and doubles as a work area for office use. Communication is by Starlink, Iridium Go and an Icom SSB transceiver. The Whitlock steering system, electric halyard winch, and fully enclosable cockpit make sail handling efficient and protected in any condition.
On deck, wide walkways, tall triple-wire lifelines, and inboard shrouds make for safe movement underway. The transom features a sugar scoop swim platform with integrated lockers for gear and tackle. Aft deck lockers include a workshop bench with power access. Rigging includes a NZ-built mast and boom with lazyjacks and boombag, folding mast steps, and a 2023 radar dome. All navigation and deck lighting are LED. A hard dodger and Bimini with solar panel mounting complete this ocean-ready cruiser.
Capistrano is a rare opportunity to acquire a world-class expedition yacht with a proven track record, built to exceptional standards, and fully outfitted for global cruising. Inspection is essential to appreciate the quality and care invested in this remarkable vessel.
Contact Robert Vrind to arrange an inspection in Manly, Queensland.
Contact Information
Other Details
Disclaimer
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.
Engines
Cummins 4B3.9, Shaft Drive with thrust bearing, 80Hp.
Engine insulated central engine bay, with genset and all round access.
Engine Hours: 3,723 (April 2025).
Cruising 7 kts @ 5L/h. Max 8 kts.
Whitlock, morse code.
Max Prop - 3 blades feathering propeller.
Fuel Capacity: 1300L
Northern Lights / Lugger 3.3 Kva - 352hrs
Accommodations and Galley
Owners cabin aft and two forward cabins (2 doubles and 3 singles). Interior in American White Oak and white epoxy surfaces. Saloon and nav station settee in leather with crew covers. Carpets throughout included.
2 showers. 2 heads forward with holding tank.
S/steel 60L Hot Water tank - heated by engine and 240v.
Eberspächer Hydronic diesel heater to all saloon and cabins. Saloon and Cabin fans.
Fusion MS-AV750 Sound system - bulkhead mounted flat screen TV - connects to Starlink.
Double front-opening Fridges and a separate top-opening freezer. Cooling by Engine-driven Eutectic plates and 240v.
Double s/steel sinks. Corian bench top.
Force 10 4 Burner convection oven and grill. Air-fryer oven.
12v Spectra watermaker (not operational).
- Water Capacity: 1000L in 4 stainless steel tanks.
Electrics and Navigation
Batteries: 500 A/h Deep cycle Lead Acid house batteries (2024).
Victron Multiplus 3000W / 120A inverter/ charger. Victron Phoenix 350 W inverter dedicated to nav station computer equipment for B&G duplication, with controller. BEP DC Colour Battery Monitor. Engine to service battery Emergency parallel switch. Pro Safe FS30 Galvanic Isolator.
Approx 300W solar panels to bimini top with Tracer MPPT.
LED interior lights. LED Nav lights.
B&G Plotter at helm. B&G ZC1 wired remote plotter controller and screen at the nav station (full function plotter duplication). Stand alone Furuno GPS Navigator at nav station. B&G H5000 analogue Aparant Wind Angle Display, B&G H5000 analogue True Windspeed Display, B&G H5000 MFD. B&G H5000 autopilot head at companion way. Suunto Compass.
Simrad Halo Radar (new dome in 2023), AIS Transceiver, Starlink, Iridium Go, Icom M710 SSB transceiver with DSP multimode Paktor. LG screen at the nav station, connects to laptop. Furuno NX-300 Navtex.
Icom IC-M402 VHF at nav station, handheld GME VHF.
Mast/Rigging and Sails
New Ullman Sails Triradial (2025) mainsail, full battens and Antal batten car, boombag and single line reefing to cockpit. Doyle Triradial Genoa - 2015 (serviced 2025). Staysail - Approx. 2022 (near new). Furler Asymmetrical (near new), new sock. Storm trysail - side track on mast and Storm Jib. Harken manual furlers for genoa and staysail.
White painted aluminium 2 spreader mast. White aluminium painted boom. Re-rigged 2015.
2 x Harken 62ST Primary Winches, 2 x Harken 50ST Secondary winches, 1 x Harken 50 Electric Winch at companionway. 1 x Harken 56 on aft deck. S/steel davits for dinghy at transom, Anchor wash down pump.
Additional Information
Hull: Aluminium. Keel bottom in 20mm, Keel sides and Garboard 8mm.
Deck: Aluminium in 4mm. Coachroof in solid Kauri, glassed over.
Keel: Welded Fin Keel with poured lead.
Tender: SeaFarer 9ft Inflatable Alloy Rib. Yamaha 3Hp.
Anchor/Winch: Simpson Lawrence v400 windlass with new motor. Chain counter. S/steel Manson CQR model with over 100m of 10mm chain. Spare S/steel plough anchor in Lazarette.
Covers: Solid Dodger with toughened glass and Bimini with side clears. Mainsail boombag.
Safety Gear: Flares, Fire Extinguishers, Fire Blanket, Coppins Storm Fighter Para Anchor and Coppins SeaClaw drogue.
Bilge Pumps: Manual bilge pumps, 2 x Electric bilge pumps and Engine driven bilge pump and high water alarm.
Other: Antifoul March '25.
Need more details?
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Features
Electrical Equipment
Shore Power Inlet:✓
Generator:✓
Inverter:✓
Electronics
Depthsounder:✓
Radar:✓
Log-Speedometer:✓
Wind Speed and Direction:✓
Navigation Centre:✓
Plotter:✓
Autopilot:✓
Radio:✓
Compass:✓
GPS:✓
VHF:✓
Flat Screen TV:✓
AIS:✓
Inside Equipment
Electric Bilge Pump:✓
Oven:✓
Manual Bilge Pump:✓
Electric Head:✓
Heating:✓
Hot Water:✓
Refrigerator:✓
Deep Freezer:✓
Battery Charger:✓
Outside Equipment
Davit(s):✓
Tender:✓
Solar Panel:✓
Rigging
Steering Wheel:✓
Electric Winch:✓
Spinnaker Pole:✓
Sails
Fully Battened Mainsail:✓
Asymmetric Spinnaker:✓
Furling Genoa:✓
Trisail:✓
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Propulsion
Engine Make:Cummins
Engine Model:4B3.9
Total Power:80hp
Engine Hours:3723
Engine Type:Inboard
Drive Type:Direct Drive
Fuel Type:Diesel
Propeller Type:3 Blade
Specifications
Dimensions
Length Overall:15.6m
Max Draft:2m
Beam:4.64m
Miscellaneous
Windlass:Electric Windlass
Hull Material:Aluminium
Tanks
Fresh Water Tank:4 x 250 l
Fuel Tank:1000 l
Holding Tank:1 x
Accommodations
Guest Cabins:3
Guest Heads:2
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