"BLUE MOON" is a rare Owner's Version Catana 581 that combines legendary French naval architecture with a state-of-the-art 2025/2026 technical refit. Designed by Christophe Barreau, the Catana 581 is renowned for its speed, safety, and build quality. With her Twaron/Carbon impact zones, high bridge deck clearance, and asymmetric daggerboards, she offers upwind performance that standard cruising catamarans simply cannot touch.
But "BLUE MOON" is more than just a fast boat; she is a self-sustaining floating estate. In 2025 and 2026 (current), she underwent a comprehensive "Open Checkbook" refit to prepare for an Atlantic and future Pacific crossing. This was not a cosmetic touch-up; it was a complete mechanical and electrical rebirth. From the New Yanmar Engine minor rebuild and New Standing Rigging to the massive 1700Ah Lithium 24v battery bank, every critical system has been replaced or upgraded.
She is not a project; she is a turn-key expedition vessel ready to circumnavigate immediately.
KEY REFIT HIGHLIGHTS (2025-2026 underway)SPEED & POWER: 2 x NEW Yanmar 110HP Common Rail Engines (2022) driving New Gori Propellers (Oct 2025).PEACE OF MIND: NEW Standing Rigging (Oct 2025) – 100% Insurable.UNLIMITED ENERGY: A massive 24v 1700Ah Lithium Valley Battery Bank paired with >5kW of Solar and 2x Victron Quattro 8000W Inverters. Run the Air Conditioning all night without the generator.EXPEDITION READY: Onboard Dive Center (Compressor + Tanks), Watermaker, and Starlink connectivity.DETAILED VESSEL WALKTHROUGH1. HULL & PERFORMANCE (The Catana Pedigree) The 581 is built for sailors who want to arrive first. The hull is constructed with GRP foam sandwich and reinforced with Carbon Fiber/Twaron (Aramid) in high-stress areas for incredible stiffness and impact resistance.
Daggerboards: Allow for shallow water access (3.5ft draft) and superior upwind pointing ability.High Bridge Deck: Eliminates slamming in rough seas, ensuring a comfortable passage.Sailing: Full Dacron wardrobe from 2022, (Main 220sq.m., Genoa 150%, Solent) plus a NEW Oxley Stabilized (Parasailor version) Spinnaker for effortless downwind speed.2. THE "POWER STATION" (New 2026 System) The electrical system on BLUE MOON rivals that of a superyacht. The boat is designed to live "off the grid and out of the marina" indefinitely.
Batteries: 24v 1700Ah Lithium Valley LiFePO4 Bank (New).Solar: Custom Arch & Hardtop housing a >5kW Solar Array, managed by Victron BlueSolar MPPT Controllers.Inverters: 2 x Victron Quattro 8000W (16kW total output) – accepts global shore power (110V/220V). Also outputs 110v and 220v each.Management: Complete CZone Digital Switching & Victron Cerbo GX integration (2026).Generator: 2022 Cummins Onan 11kW Marine QD (Backup power, <500 hrs). (2022)3. ACCOMMODATIONS (Owner’s Version)
Starboard Hull (Owner): Dedicated entirely to the owner. Features a queen island berth, office/vanity area, extensive wardrobe storage, and a spa-like bathroom with a separate walk-in shower.Port Hull (Guests): Spacious double cabins with private heads and showers.Climate Control: Premium Frigomar Inverter Chiller AC System (5 Air Handlers) – Ultra-efficient and quiet.Laundry: Haier Domestic Washing Machine in dedicated utility space.4. NAVIGATION & ELECTRONICS
Plotters: B&G Zeus 3 Touchscreen.Sensors: B&G Halo Radar, AIS Transceiver, and ForwardScan sonar.Autopilot: B&G System with New Pump & Motor (Oct 2025).Internet: Starlink High-Performance hardware installed.5. TOYS & TENDER
Tender: Zodiac Pro 4.2m RIB (2012) with New Hypalon Tubes (Oct 2025) and Honda 40HP 4-Stroke (25mph+ performance).Diving: Professional Coltri MCH 6 Dive Compressor (2021), 4 Rack-Mounted Tanks, with fins, masks and BCDs.Workshop: Dedicated ship's air compressor (BK1190) for tools and maintenance.
Ground Tackle and others (The "Sleep Well" Package)
Primary Anchor: 50kg (110lb) Rocna (Oct 2025). The gold standard for holding power.Chain: Massive 150m (492ft) of 12mm Chain. Allows for safe anchoring in deep anchorages where other boats cannot go.Secondary: 40kg Delta Anchor (Backup).Windlass: 5hp Custom, very powerful with remote control at helms. OTHERS:
A. Mooring Gear (Put in "Deck and Hull Equipment")
Fenders: 8 x Heavy Duty FendersDock Lines: Full set of 1-inch braided dock lines (New 2025).B. Safety Gear (Put in "Additional Equipment" or "Safety")
Life Raft: 8-Man, Service due Oct-2028.EPIRB: e.g., RescueMe, Latest version, NEW Oct 2026.Life Jackets: 4 x Spinlock Deckvests with strobes."
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