Design and Construction
The solid-fiberglass hull has a fin keel and spade rudder. Displacement is 12,125 lb, including 4,850 lb of iron ballast, for a ballast ratio of 40 percent. That substantial ballast fraction, combined with a displacement-to-length ratio of 268 and a capsize screening value of 1.98, supports the boat’s documented stiffness. Reviewers describe her as very stable and credit her with good righting capability if overturned.
The deck-to-hull joint forms a structural rubbing strake at the beam. CE category A certification identifies the Compromis 34 as an offshore-capable touring vessel, while the source literature describes her plainly as a safe touring ship.
Rig, Performance, and Handling
The Compromis 34 carries a fractional-sloop rig with a 100 percent sail area of roughly 600 sq ft. Her sail-area-to-displacement ratio of 18.27 puts her toward the lively and responsive end of the range rather than the sluggish one.
The well-lined underwater body and balanced rig are credited with taking her quickly to hull speed—about 7 knots—on nearly every point of sail. A period assessment of the C-Yacht 10.40 calls her a sporty, seaworthy sailer with easy handling: fast, direct, and, above all, lively. It describes her as a good performer suited to coastal cruising.
Air draft is 49 ft, while mast height from the waterline is listed as 15 m. Those figures are modest enough for European inland and coastal passages.
Cockpit and Accommodations
The 34-foot hull uses a center-cockpit layout with non-slip side decks. The boat can be sailed entirely from the cockpit with a self-tending setup, a combination the builder cites as the guarantee of a safe stay aboard.
Below, there are five berths and 1.90 m of cabin headroom, a generous figure for this length. The clever interior plan provides what the source describes as unprecedented space for the boat’s size. In particular, the owner’s cabin, galley, and wet cell are surprisingly large for a 34-footer.
Tankage comprises a 100 L stainless-steel fuel tank, 200 L of fresh water in polyethylene tanks, and a 60 L polyethylene waste-water tank. The original fuel range was small and the water range short by design.
Machinery and Operational Limits
A Yanmar 27 hp diesel driving through a Saildrive is the standard power plant. The Saildrive leg and originally small fuel capacity are design features rather than faults. Even so, buyers should regard the limited 26 gal fuel supply and 53 gal water supply as operational constraints rather than problems to correct.
Any engine and drive installation still in service after two decades will reward a survey of the Saildrive leg and tankage.
Ownership and Availability
With only 31 boats built before production ended in 2008, the Compromis 34 is a scarce Maas design. That limited production may restrict familiarity within the spares network.
The high ballast ratio and CE category A rating make her a durable coastal and light-offshore candidate. Her short fuel and water ranges, however, call for thoughtful cruising plans.
The Verdict
The Compromis 34 is a rare, well-balanced Maas cruiser that combines stiffness and lively handling with a roomy, safe center-cockpit interior. She’s best viewed as a coastal tourer with offshore certification rather than a bluewater liveaboard. Her small tanks are the main practical caveat.
Pros
- High 40 percent ballast ratio, documented stiffness, and good righting capability after a capsize
- CE category A certification as a safe touring vessel
- Roomy owner’s cabin, galley, and wet cell for the boat’s length
- Lively, easy-handling fractional rig that reaches hull speed quickly
Cons
- Originally small fuel capacity of 26 gal and a short water-supply range of 53 gal
- Only 31 built, limiting familiarity within the spares network
- Best suited as a coastal cruiser rather than a long-range offshore vessel



