Mariah 27 Information, Review, Specs

Sailing Performance & Handling

Under sail, the Mariah 27 behaves with the deliberate, predictable motion characteristic of a heavy-displacement hull. With a displacement that is estimated to be significantly higher than contemporary 27-footers (approaching 10,000 lbs), the boat possesses a high momentum that allows it to punch through heavy chop without the hobby-horsing common in lighter vessels. Its full keel and large rudder provide exceptional tracking, making it a "hands-off" sailor once the sails are balanced.

The sail area-to-displacement (SA/Disp) ratio of the Mariah 27 is relatively low, reflecting its role as a cruiser rather than a racer. In light winds, the boat can feel sluggish, requiring a significant breeze to overcome its wetted surface area. However, it excels in "small craft advisory" conditions where lighter boats are forced to reef or head for port. Anecdotal reports from owners of Hankinson-designed cutters suggest the boat is most comfortable on a reach, where the cutter rig allows for versatile sail plans (typically a staysail and a yankee jib) to keep the center of effort low and the boat upright.

Interior Comfort & Variations

The interior of the Mariah 27 is a masterclass in traditional nautical joinery, often featuring an abundance of teak, bronze, and high-quality laminates. Given its 27-foot LOA, the cabin is surprisingly commodious due to the hull's generous beam and relatively high freeboard. The layout typically features a forward V-berth, a central salon with a settee that doubles as a sea berth, and a compact galley and navigation station near the companionway.

One notable variation involves the larger sibling, the Mariah 31, which was designed by W.I.B. Crealock. While the 27 and 31 share a similar design language—including the distinctive double-ended "canoe" stern—the 31 offers significantly more interior volume and was often finished to a higher offshore standard. The Mariah 27 was frequently marketed to solo sailors or couples who desired the safety of a heavy-keeled boat without the slip fees or maintenance overhead of a 30-plus-foot vessel.

Known Issues & Buyer’s Checklist

Prospective buyers of a Mariah 27 should approach the vessel with an eye toward age-related maintenance, as most hulls are now over 40 years old.

• Deck Core Integrity: Like many boats of this era, the Mariah 27 utilized a balsa or plywood-cored deck. Moisture ingress around the chainplates, stanchion bases, and the mast step is a common "gotcha." Spongy areas underfoot should be thoroughly investigated with a moisture meter.
• Chainplate Corrosion: The chainplates on these rugged cruisers are often heavily glassed into the hull. While this provides immense strength, it makes inspection for crevice corrosion difficult. Buyers should look for signs of rust bleeding or deck leaks around the shroud exits.
• Rigging and Spars: Many Mariahs were equipped with heavy-duty aluminum masts that are exceptionally durable, but the standing rigging is likely past its service life if it hasn't been replaced in the last decade.
• Engine Access: While the Mariah 27 often features a reliable diesel inboard (commonly a Yanmar or Universal), the engine compartment is famously tight. Check for service records and look for signs of oil or coolant leaks in the bilge that might indicate deferred maintenance.

The Verdict

The Mariah 27 remains a sought-after choice for the "purist" sailor who values safety and traditional aesthetics over modern planing performance. It is a boat built for the journey, not the destination, offering a level of offshore security rarely found in vessels under 30 feet.

Pros

• Exceptional Seaworthiness: A heavy, full-keel design that handles heavy weather with ease.
• Aesthetic Appeal: Classic double-ended lines and high-quality traditional woodwork.
• Structural Integrity: Overbuilt fiberglass layup typical of the late 70s California boat-building scene.

Cons

• Light Air Performance: Struggles in breezes under 10 knots due to high displacement and wetted surface.
• Maneuverability: Like most full-keel boats, it can be difficult to handle in reverse under power in tight marinas.
• Rarity: Low production numbers make finding one on the used market—and finding specific replacement parts—a challenge.