Maizey B63 Information, Review, Specs

Sailing Performance & Handling

The B63 is characterized as an ultra-light racer, carrying a displacement-to-length ratio (D/L) of approximately 140, which places it firmly in the category of performance-oriented coastal boats. According to technical data preserved in the John Crawford Marine Trailer Sailer Library, the B63 utilizes a fractional sloop rig that provides a sail area of roughly 203 square feet. This configuration, combined with its light weight (approximately 2,094 lbs), makes the boat exceptionally responsive in light-to-moderate air.

The vessel’s most notable handling feature is its lifting keel, which allows for a maximum draft of 4.27 feet for upwind performance and a minimum of less than a foot with the keel raised. This versatility makes it ideal for the shallow estuaries and sandy shorelines of Port Phillip Bay and the Queensland coast where it gained its reputation. Unlike the original swing-keel Boomerangs, the B63 often utilized a drop-keel mechanism that improved vertical center of gravity and tracking, though at the cost of some interior cabin space. Owners frequently report that the boat tracks better than the older 20-foot variants but requires attentive trimming to manage its relatively high sail-area-to-displacement ratio in heavy gusts.

Interior Comfort & Variations

Despite its performance pedigree, the B63 maintains a functional four-berth layout suitable for weekend coastal cruising. The interior configuration typically includes a V-berth forward and two quarter berths extending aft under the cockpit seats. Because the B63 was a "revised deck" model, it offers slightly better ergonomics and a cleaner interior finish compared to the older molded-plywood or early GRP Boomerangs.

The cabin usually features a compact central galley area with space for a portable stove and a chemical toilet tucked under the V-berth. While the headroom is limited—standard for a 20-foot trailer sailer—the B63 benefited from improved deck molding that maximized the feeling of space. Variations of the boat exist primarily in the rigging and keel department; some were optimized for Junior Offshore Group (JOG) racing with higher-specification deck hardware, while others were fitted as simple family cruisers. The hull itself remained constant, but the "B63" branding specifically denotes the 1986-onward GRP models with the updated deck.

Known Issues & Buyer’s Checklist

Prospective buyers should focus on the specific mechanical and structural points that affect this vintage of Australian trailer sailers:

• Keel Lifting Mechanism: On drop-keel variants, the winch and stainless steel cable system should be inspected for fraying or corrosion. Because the keel is heavy (roughly 628 lbs), any failure in the lifting pin or cable can lead to significant hull damage.
• Deck and Core Softness: The revised deck of the B63 used sandwich construction for stiffness. Older boats may suffer from delamination or "soft spots," particularly around the mast step and the chainplates where water may have ingressed over decades.
• Rudder Blade Stress: The high-aspect rudder common on the B63 is subject to significant torque. Check for stress fractures around the pintles and gudgeons, especially if the boat has been raced hard.
• Hull-to-Deck Join: Given its light-displacement racing intent, the hull-to-deck join is a critical structural area. Inspect the rub rail and internal bond for any signs of separation or previous impact repairs.

Community & Resources

The B63 is supported by a dedicated following within the Australian trailer sailing community. Historically, technical support was found through the Boomerang Association of Australia, though the model's distinct identity often places it within broader trailer sailer clubs in Victoria and Queensland. Technical brochures and historical reviews are maintained by specialized regional brokerages that focus on the heritage of Australian-built fiberglass boats.

The Verdict

The B63 is a refined classic that offers a compelling balance for the sailor who wants a trailerable boat capable of both competitive club racing and relaxed weekend gunkholing.

Pros:

• Excellent light-air performance and acceleration.
• Highly trailerable and easy to launch in shallow ramps.
• Proven hull design with modern GRP construction benefits.

Cons:

• Limited headroom and living space for extended stays.
• Lifting keel mechanism requires regular maintenance.
• Light displacement makes it less suitable for heavy offshore conditions.