The Larken Klasse is a storied Dutch racing dinghy that occupies a unique niche in the history of European small-boat design. Conceived in the early 1920s by naval architect J.W. (Hans) Larken, the vessel was designed to provide a fast, accessible, and high-performance racing platform for the inland lakes of the Netherlands. Often categorized as a "Sharpie" derivative due to its hard chines and flat-bottomed characteristics, the Larken is a 6.5-meter open boat that emphasizes speed and technical skill over creature comforts. Unlike many of its contemporaries that utilized heavy keels, the Larken relies on a centerboard and a slender, low-freeboard profile to slice through the water, making it a staple of Dutch competitive sailing for over a century. The class is governed by the Larken Organisatie, which maintains the strict one-design rules that have allowed the boat to transition from traditional wooden construction to modern wood-epoxy and GRP (Glass Reinforced Plastic) versions without losing its competitive balance.
Larken Klasse Information, Review, Specs

- Make
- Larken
- Model
- Klasse
- Builder
- —
- Designer
- A Van Gool,
- Number Built
- Production Year(s)
- 1919 - ??
Sailing Performance & Handling
The Larken Klasse is defined by its "sharpie" hull form, which offers a distinctive sailing sensation characterized by high initial stability but a demand for precise heel management. Because the boat is long (6.5 meters) and relatively narrow, it possesses a high theoretical hull speed for an open dinghy, allowing it to plane in moderate-to-heavy air—a feat not easily achieved by its heavier, full-keeled Dutch cousins like the 16m2 or the Regenboog.
Handling is described by the class association as highly responsive; the large mainsail and jib configuration requires a coordinated crew to balance the rig's power. According to technical specifications maintained by the Larken Organisatie, the boat’s flat bottom allows it to accelerate quickly on a reach, though its lack of a deep keel means it can be sensitive to "pounding" in a short, steep chop. Tracking is generally excellent due to the long waterline, but the boat requires active hiking to stay flat. In light air, the Larken is exceptionally competitive, as its minimal wetted surface area allows it to ghost along when heavier displacement boats are stalled.
Known Issues & Buyer’s Checklist
Prospective buyers of a Larken Klasse must differentiate between older "classic" wooden builds and modern composite versions, as each comes with a specific set of maintenance requirements.
- Chine and Bottom Integrity: In older wooden hulls, the hard chine is a primary point of failure. Rot often develops where the side panels meet the bottom, particularly if the boat has been stored on a trailer with improper bunk support.
- Centerboard Trunk: The high lateral loads generated during racing can lead to stress cracks or leaks around the centerboard trunk. On wooden models, check for "soft spots" or evidence of water ingress in the surrounding frames.
- Mast Step and Deck Stiffness: Because the Larken carries a significant sail plan for its weight, the mast step and the foredeck bear considerable loads. Inspect the underside of the deck for longitudinal stiffeners that may have delaminated or cracked over time.
- Rigging Tension: Ensure the shroud chainplates are securely backed. On older boats, the tension required for a modern, flat-cut racing sail can sometimes exceed the structural capacity of the original wooden timbering.
Community & Resources
The heart of the Larken community is the Larken Organisatie, which serves as the official class association in the Netherlands. This group manages the class register, organizes the annual national championships, and provides technical support for builders and restorers. The boat is also recognized by the Watersportverbond (the Royal Dutch Watersport Federation), which oversees competitive sailing standards for national classes. Owners often congregate at historic Dutch sailing centers such as Friesland and the Kaag Lakes, where the Larken's shallow draft and high speed remain perfectly suited to the local environment.
The Verdict
The Larken Klasse is an elegant, high-performance relic of a golden age of yacht design that remains remarkably relevant on the modern racing circuit. It is a "purist's boat" that rewards tactical precision and athletic crew work. While it lacks the versatility of a modern multi-purpose daysailer, its historical pedigree and specialized performance make it a premier choice for competitive sailors in Northern Europe.
Pros:
- Exceptional light-wind performance and high hull speed for its class.
- Strict one-design rules ensure a level playing field in racing.
- Elegant, classic aesthetics that draw attention in any marina.
- Active class association providing strong resale value and community support.
Cons:
- Open design provides no shelter and can be "wet" in choppy conditions.
- Wooden variants require intensive, specialized maintenance.
- Requires a skilled crew; not recommended as a primary trainer for novice sailors.
- Highly localized community, primarily centered in the Netherlands.
Measurements
Construction & Hull
- Construction Material
- Wood
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x Skeg-Hung
- Ballast
- 75 lbs
- Displacement
- 532 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 13.12 ft
- Waterline Length (LWL)
- -
- Beam
- 4.59 ft
- Draft
- 2.3 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Gunter
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- 118 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 28.75
- Ballast / Displacement Ratio
- 14.1
- Displacement / Length Ratio (D/L) Ratio
- —
- Comfort Ratio
- —
- Capsize Screening Formula
- 2.27
- Hull Speed
- — kn