The Maple Leaf One Design (often abbreviated as the Maple Leaf OD or Maple Leaf 30) represents a significant chapter in the Pacific Northwest’s maritime heritage. Designed by Harold Gonsalves and produced in the late 1960s and early 1970s by Maple Leaf Yachts in British Columbia, this vessel was engineered to bridge the gap between dedicated club racing and family coastal cruising. At its launch, the Maple Leaf OD was a forward-thinking design, utilizing fiberglass construction to provide a lighter, faster alternative to the heavy wooden cruisers common in the region at the time. While production numbers were modest compared to the mass-market giants of the era, the boat established a loyal following among sailors in the Salish Sea who appreciated its balance of speed and seaworthiness.
Maple Leaf OD Information, Review, Specs

- Make
- Maple Leaf
- Model
- OD
- Builder
- Plywood Fabricators Ltd.
- Designer
- Sparkman & Stephens
- Number Built
- Production Year(s)
- 1946 - ??
Sailing Performance & Handling
The Maple Leaf One Design is characterized by a high-aspect rig and a relatively modern underbody for its vintage, featuring a fin keel and a spade rudder. This configuration allows for responsive handling and a tighter turning radius than its full-keeled contemporaries. In light air, the boat is surprisingly nimble; the sail area-to-displacement ratio suggests a hull that is easily driven, making it a favorite for the variable winds of the Pacific Northwest.
Owners frequently report that the boat tracks well upwind, though like many designs from the late 60s with a narrower beam, it can be tender when pressed. Reefing early—typically around 15 to 18 knots of true wind—is standard practice to maintain optimal heel and steerage. The spade rudder provides excellent feedback to the helm, though it requires attention in a following sea to prevent rhythmic rolling. According to historical class summaries, the boat was originally intended to be raced with a full crew, but its simple deck layout and manageable sail plan make it an accessible platform for short-handed coastal hops.
Interior Comfort & Variations
For a 30-foot vessel designed with a "One Design" racing pedigree, the interior of the Maple Leaf OD is remarkably functional. The layout generally follows the traditional plan of the era: a V-berth forward with an overhead hatch for ventilation, followed by a compact enclosed head to port and hanging storage to starboard. The main salon features opposing settees, with the table often doubling as a conversion for a wider berth.
The use of rich wood accents—often teak or mahogany—against the white fiberglass liner provides a classic, warm aesthetic that defies the boat’s competitive origins. Headroom is adequate for sailors up to approximately six feet, though it tapers significantly moving forward. The galley is typically situated aft, near the companionway, to maximize ventilation and allow the cook to stay in communication with the cockpit. While there are no significant production "sibling" variants in terms of cabin layout, individual boats often reflect the customizations of their owners, with some featuring updated electrical panels or modified nav stations to accommodate modern GPS and communication equipment.
Known Issues & Buyer’s Checklist
Prospective buyers of a Maple Leaf OD should approach the inspection with an understanding of early fiberglass production techniques. While the hulls are generally robust, several common areas require scrutiny:
- Deck Core Integrity: Like many boats of this vintage, the Maple Leaf OD uses a balsa-cored deck. Moisture ingress around stanchion bases, chainplates, and the mast step is a common issue. Soft spots or "crunching" sounds underfoot indicate delamination that may require substantial repair.
- The "Smile" at the Keel Joint: The transition between the lead keel and the fiberglass stub can develop a hairline crack, colloquially known as a "Catalina Smile" (though applicable to most fin-keel boats of this era). While often cosmetic, a deep or widening gap may suggest that the keel bolts require tightening or replacement.
- Rudder Post and Bearing Wear: The spade rudder is a high-load component. Buyers should check for excessive "slop" or play in the rudder post, which often indicates worn bushings that can lead to vibration under power or heavy weather.
- Original Gelcoat Cracking: Stress "spider" cracks are common around the cockpit coamings and deck hardware. While usually superficial, they can be an entry point for water if they penetrate the laminate.
Community & Resources
The primary hub for technical knowledge and historical data for the Maple Leaf One Design remains the regional yacht clubs of British Columbia and Washington State. Historically, the Royal Vancouver Yacht Club and the Royal Victoria Yacht Club hosted active fleets, and their archives often contain original handicap ratings and race results. While there is no longer a centralized manufacturer website, the Maple Leaf 30 community occasionally congregates through regional "classic plastic" sailing groups centered in the Pacific Northwest.
The Verdict
The Maple Leaf One Design is a quintessential "performance classic" that offers a rewarding sailing experience for those who value heritage and agility over modern volume.
Pros:
- Excellent light-air performance and responsiveness.
- Classic, warm interior aesthetics with functional cruising amenities.
- Strong regional community and historical significance in the PNW.
- Generally affordable entry point for a capable 30-foot coastal cruiser.
Cons:
- Prone to deck saturation and delamination if hardware isn't re-bedded.
- Tender in heavy air, requiring proactive sail management.
- Aging spade rudder and keel bolt assemblies require regular professional inspection.
- Limited interior volume compared to modern 30-foot "wide-beam" designs.
Measurements
Construction & Hull
- Construction Material
- Wood
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x —
- Ballast
- -
- Displacement
- 10000 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 35.16 ft
- Waterline Length (LWL)
- 24 ft
- Beam
- 7.83 ft
- Draft
- 5.5 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Fractional Sloop
- P (Main Luff)
- 38.2 ft
- E (Main Foot)
- 16.9 ft
- I (Foretriangle Height)
- 33.8 ft
- J (Foretriangle Base)
- 11.7 ft
- Forestay Length (est)
- 35.77 ft
- Sail Area
- 530 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 18.27
- Ballast / Displacement Ratio
- —
- Displacement / Length Ratio (D/L) Ratio
- 322.94
- Comfort Ratio
- 36.43
- Capsize Screening Formula
- 1.45
- Hull Speed
- 6.56 kn