Fastcat 455/445 Information, Review, Specs

Sailing Performance & Handling

The Fastcat 445/455 is built for speed, capable of reaching speeds in the mid-to-high teens under sail. The hulls are exceptionally narrow with fine entries, which limits internal volume compared to a Lagoon or Fountaine Pajot but dramatically improves the Velocity Made Good (VMG). African Cats notes that the 445/455 can achieve a VMG of over 7.5 knots at a 45-degree true wind angle in 16 knots of wind, outpacing many performance monohulls of similar length. This performance is largely attributed to a high Sail Area to Displacement ratio; for example, the carbon version of the 445 weighs only 5,800 kg (12,787 lbs) while carrying a massive 119-square-meter sail plan.

Handling is further enhanced by the retractable "Motogen" propulsion system found on GreenCat variants. When sailing, these electric legs retract into the hull, eliminating the drag associated with traditional fixed propellers and shafts. Editorial reviews in Multihulls World have highlighted the "wolf in sheep’s clothing" nature of the design, noting that while the cabin roof appears somewhat staid, the underwater profile is optimized for high-speed tracking and minimal spray, even at speeds exceeding 13 knots.

Interior Comfort & Variations

The interior of the Fastcat 445/455 emphasizes functional luxury and light weight rather than maximum cabin count. The standard configuration typically features two massive staterooms—one in each hull—offering berths of approximately 2.20m x 1.80m. A three-cabin variant was offered as an option for families. To maintain the boat's performance edge, the cabinetry and furniture utilize lightweight composite materials rather than heavy solid woods.

A major update in the 455 evolution was the increase in interior headroom to 2.04 meters (6' 8") by raising the deck slightly, a modification driven by owner demand. This change also improved visibility from the panoramic saloon. The bridge-deck bridge-clearance is notably higher than average, which reduces the frequency of "slamming" in heavy seas, a common comfort issue in lower-profile cruising catamarans.

Popular Mentions & Media

The Fastcat 445 gained significant international attention through its "Green eMotion" demonstrator. Launched in late 2009, this specific hull was the first fossil-fuel-free performance catamaran to cross the Atlantic twice (early 2010), serving as a proof-of-concept for the Green Motion electric propulsion and energy regeneration system. Technical reviews of this crossing were featured in Yacht.de, focusing on the boat's ability to remain self-sufficient through hydro-generation and solar power.

Known Issues & Buyer’s Checklist

Prospective buyers of a pre-owned Fastcat 445 or 455 should focus their survey on the complex systems and lightweight construction that define the model.

• Electric Propulsion Maintenance: On GreenCat versions, the retractable Motogen units are technically complex. Check the seals of the retraction mechanism and the state of the high-voltage controllers. Early lithium battery banks may be nearing the end of their lifecycle and represent a significant replacement cost.
• Basalt and Carbon Laminates: These boats utilize advanced fibers (Basalt/Kevlar/Carbon). While exceptionally strong, repairs require specialized knowledge of epoxy infusion. Ensure the hull and deck are scanned for any signs of delamination or core moisture, particularly around the sugar scoop extensions on the 455 models.
• Rigging Loads: Given the high performance and massive sail area, the standing rigging and chainplates are under significant stress. Look for signs of fatigue in the carbon mast (if equipped) and the martingale system.
• Rudder Bearings: High-speed multihulls place high loads on steering systems. Inspect the rudder bearings and the linkage for play, as these are common wear points on South African performance builds of this era.

Community & Resources

The primary source for technical data and historical build specifications remains the manufacturer, African Cats, which continues to advocate for the basalt-fiber and electric propulsion technology pioneered on these models. While there is no large-scale independent owner association, technical discussions are frequently found within performance multihull circles and specialized forums for "green" sailing technology.

The Verdict

Pros:

• Exceptional speed and VMG, rivaling dedicated racing multihulls.
• Advanced, lightweight construction (Carbon/Basalt/Epoxy) and high bridge-deck clearance.
• True fossil-fuel-free cruising potential on Green Motion equipped units.
• Modern, airy interior with superior headroom for a performance cat.

Cons:

• Complexity of the electric propulsion and retraction systems can be a maintenance burden.
• Limited internal volume compared to "charter-style" cruising catamarans.
• Niche construction materials require specialized expertise for structural repairs.