That narrow shape defines the H-323. She measures 32 feet 4 inches overall but just 8 feet 5 inches across the beam, with a length-to-beam ratio of 3.85—slimmer than 95 percent of comparable designs. The 6,173-pound hull carries a 41-percent ballast ratio in lead, while an iron fin keel draws roughly four and three-quarter feet light. That draft helps her enter shallow marinas without the compromises of a centerboard boat.
Design and Construction
Structurally, the H-323 combines a solid hand-laid hull with a balsa-cored deck sandwich, chosen to temper the interior climate. Below the waterline, the hull is solid fiberglass, with about 247 square feet of wetted surface. The iron fin keel is bolted to the hull.
Her displacement-length ratio of 170 places her among light racers. The narrow beam gives up interior volume in exchange for a hull that moves through the water very easily, as Yachting Monthly’s tester found both in a marina and under way.
Rig and Handling
Groop offered more than one fractional rig, each with a combined mainsail-and-jib area of about 384 square feet. The sail plan is notably powerful for a boat of this size: the H-323 carries more rig than 97 percent of similar sailboats, and the data describe her as significantly overrigged.
With a 135-percent genoa, her sail-area-to-displacement figure is 20.5. That sail power helps her outperform 69 percent of similar designs in light wind. On the wind, she heels quickly to about 20 degrees, then feels good and stiff as she settles into a groove. Her moderately light displacement also lets her accelerate quickly in gusts.
The spade rudder sits as far aft as possible, and the tiller reaches over the lazarette. The cockpit is deep, secure, and self-draining, while the deck offers good width for safety. Writing in Yachting Monthly, test sailors found the H-323 quick and responsive on the helm. She handled easily in close quarters and went astern predictably under engine.
Accommodations and Stowage
The H-323 sleeps five and is finished throughout in teak. Headroom is above average for the class, though it tapers forward from about six feet at the companionway. A toilet appears in the basic specification.
A Yachting Monthly survey recorded 100 liters of water, giving reasonable range, along with surprising locker space beneath the berths, in the forepeak, and within the cockpit. A fitted cockpit tent extends the living space at anchor, and the 1983 test boat even had room for an electric guitar.
The trade-off is that there are no separate cabins or double berth, which some sailors will find limiting. One longtime owner offered a different view, describing the boat as very comfortable and more than adequate for extended cruising by a serious sailor.
Engine and Ownership
The H-323 may be fitted with an inboard Yanmar 1GM diesel producing 7 horsepower through a shaft drive. This combination gives a flat 7-knot speed under power. A 60-liter steel fuel tank provides about 60 hours of steady motoring.
Single-line reefing and a stack-pack weren’t standard, so reefing upgrades are a common and worthwhile ownership improvement. That is particularly relevant on a boat with such a powerful rig.
The H-323 has a capsize screening value of 1.81 and a Motion Comfort Ratio of 20.9, making her more comfortable than 31 percent of similar designs. These figures frame her as a seaworthy, light-displacement cruiser rather than a soft-riding passagemaker. Previous owners’ regular Channel crossings to France also confirm the boat’s offshore intent.
Known Issues
The one documented construction concern is the balsa-cored deck. Because any penetration of the sandwich can allow water into the core, work that penetrates the deck requires special care. Buyers and owners should treat every deck fitting, winch base, and through-deck fastening as a potential route for water intrusion and keep it properly sealed.
The Verdict
The H-323 is a thoughtfully drawn small cruiser that trades beam and accommodation volume for a quick, stiff, easily handled hull. She has genuine light-air speed and credible offshore range. The balsa-cored deck is the one significant ownership caveat, requiring disciplined maintenance around every penetration.
Pros
- Slender, easily driven hull that outperforms most comparable boats in light wind
- Quick, responsive helm and predictable maneuvering under power
- Deep, secure, self-draining cockpit, with good deck width for safety
- Above-average headroom and clever stowage for such a narrow boat
Cons
- Balsa-cored deck requires careful maintenance around all penetrations
- No separate cabins or double berth, limiting accommodation flexibility
- Significantly overrigged for the hull, requiring disciplined reefing
