
CUSTOM Aluminum Explorer
Knot 4 Sale is a striking 86-foot aluminium custom motor yacht that epitomizes practicailty, innovation, and adventure. Originally built by Primorets in 2010, she underwent a comprehensive refit led by award-winning superyacht designer Greg Marshall and completed by Platinum Marine Group Ltd. in Vancouver, Canada. This extensive rebuild revitalized every system, surface, and structure—resulting in a vessel that feels entirely new and ready for her next voyage.
Key Features
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Comprehensive refit (2024) by Platinum Marine Group Ltd.
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All-aluminium hull and superstructure — lightweight, strong, and efficient
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Extended hull (+ 8 ft) with hydraulic swim platform
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Fully enclosed flybridge and hardtop
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Complete interior rebuild with modern laminate and vinyl finishes
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New Ultradeck synthetic decking throughout
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Full electrical, plumbing, HVAC and navigation system replacement
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Long-range 11,000 L fuel capacity
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BV Classed & MCA Compliant
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Builder: Primorets (Ukraine)
Model: Custom Motor Yacht
Year Built / Refit: 2010 | 2024 (Platinum Marine Group Ltd., Canada)
Length: 86’ (26.2 m)
Beam: 20’ (6.1 m)
Draft: 4’ 7” (1.4 m)
Gross Tonnage: 48 GT
Hull: Aluminium hull and aluminium superstructure
Classification: Bureau Veritas (BV) | MCA Compliant
Location: Vancouver, Canada-
Engines: 2 × MTU Twin Turbo 1,250 hp each with five-blade props
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Cruising Speed: 22 knots | Max Speed: 28 knots
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Fuel Capacity: 11,000 L | Fresh Water: 1,514 L
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Stabilisation: Naiad fin stabilizers (re-bearing 2024)
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Generators: Kohler 27EFoZD & 8.5FOZD
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Cooling & Heating: Webasto three-stage chiller + diesel burner heater + Spheros Thermo 300 (30 kW)
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Watermaker: 40 gph Water Makers Inc.
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Steering: Kobelt 7175-3V system
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Waste Treatment: Technicomar unit (new 2024)
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Engine Room: fully refurbished with new ventilation, flooring, and insulation
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Fire Protection System & Rule bilge pumps
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Victron Quattro 4 Electrical System
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800 Ah lithium house bank, charged by night generator
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3 × Victron inverters | 2 × Skylla IP-65 chargers
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Full DC distribution & battery network
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LED lighting throughout (new wiring and fixtures)
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Tank level monitoring, AC distribution & hydraulic systems refurbished
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ARC EPIRB and safety circuits
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Raymarine touchscreen navigation suite
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Raymarine I60 wind system & chart plotter with flybridge repeater
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Maretron monitoring system (new install 2024)
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2 × Standard Horizon VHF radios
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Connectivity upgrade with cell booster
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Autopilot and depth instrumentation
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8-ft hull extension with hydraulic swim platform and removable rails
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Rebuilt flybridge with hardtop, glass enclosure and lounge seating
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Jacuzzi and two-person hot tub
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Outdoor kitchen with Thor gas BBQ and bar area
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U-shaped dining settee and adjustable loungers
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Refurbished anchoring system & new rub rails
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Underwater lights on transom and new navigation lights
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Ultradeck synthetic teak decking throughout
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Completely rebuilt interior (2024) with modern laminate & vinyl finishes
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Master suite with new lounge under hull-side window and double vanity ensuite
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Pullman berth in kids’ room and rebuilt VIP and day heads
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Lowered bathtub with rain shower and glass enclosure
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New cabinetry, floors, carpet and hardwood throughout
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Ventless combo washer/dryer in master + vented set in crew utility room
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KitchenAid induction hob, wine fridge and new appliances throughout
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50” salon TV | 32” sky-deck TV
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Captain’s chair with heat and massage functions
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Enhanced insulation for quiet operation
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AB Nautilus 15 DXL tender with 60 hp Yamaha (outboard 85 hrs)
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Sea-Doo Spark Jet Ski with dedicated Davit crane
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Inflatable slide from upper deck
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Towables, water skis, paddleboard and two-person kayak
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Snorkelling gear and extended swim platform for easy launch
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Full demolition and interior rebuild
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Hull paint system, epoxy primer and vinyl wrap
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8' hull extension and hydraulic platform
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Complete mechanical, electrical and plumbing replacement
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New navigation and connectivity systems
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Rebuilt flybridge and deck furniture
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Ultradeck decking throughout
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New heads, fixtures, and custom cabinetry
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Engine room refurbishment and fire safety system installation
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USD $3.5M total investment (2024)
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