Seastream 43 Sailboat Review, Specs, and Listings

Design and Construction

The hull is solid fibreglass with a fin keel and skeg-hung rudder, and the ballast ratio sits near 36 percent against a displacement that gives her a low center of gravity and a stiff, stable posture under sail. Her capsize screening figure of 1.77 to 1.79 places her firmly among moderate bluewater cruising boats, and the published assessment holds that she would be a safer choice for an ocean passage than a yacht with a CSF above 2.0. The deck-stepped mast is noted as potentially less strong than a keel-stepped arrangement, a trade-off accepted in a design meant for manageable deck-level rigging rather than extreme rig loads. She carries a Perkins diesel as the typical inboard, turned through a shaft drive, with a 125-gallon fuel tank and 210-gallon water tank that let a crew load her down with cruising gear and hardly disturb the waterline.

Rig and Handling

The cutter rig steps on deck with stainless steel standing rigging and two spreader sets, carrying a mainsail, roller-furling genoa, and hanked staysail. Mainsail handling is straightforward thanks to slab reefing with three points, lazy jacks, and a stack pack, while the genoa and staysail both lead to cockpit-coaming winches and the sheets run through tracks on the side decks or coachroof. A spinnaker pole stows on the mast for a chute or cruising sail. Under way she is not a fast boat but a steady and comfortable one: she sails well in light to moderate winds, may want engine help in very light airs, and because she lacks a stiffness-enhancing bulb keel she benefits from being reefed early to stay upright in a moderate breeze. In strong winds and rough seas, properly balanced and reefed, she handles the conditions, and her heavy displacement with long waterline gives a comfortable motion that glides rather than hobby-horses or slams.

Accommodations

Below, the boat provides three separate cabins and two heads for up to eight sleepers. The forward cabin holds a V-berth with infill, hanging locker, and drawers, plus its own ensuite head with marine toilet, sink, and shower. The aft cabin has a double berth, locker, and shelves and shares the second head—also with marine toilet, sink, and shower—with the saloon. A third cabin to starboard of the saloon has two single bunks, locker, and drawers. The saloon itself is large, with a port U-settee converting to a double, a starboard settee that serves as a single, and a folding table seating six. The galley sits to port in the pilothouse with a three-burner gas stove, oven, grill, double stainless sink, and top-loading refrigerator; opposite, the navigation station has a large chart table and a full instrument panel. The pilothouse gives excellent helm visibility, twin sliding doors to side decks and cockpit, and controls for engine, bow thruster, and windlass, while aft the cockpit is protected by sprayhood and bimini with long benches and a lazarette.

Known Issues

The only design caveat carried in the record is the deck-stepped mast, which is potentially less strong than a keel-stepped mast in extreme load cases.

The Verdict

The Seastream 43 is a purpose-built offshore pilothouse cutter that trades speed for steadiness and load-carrying range. Her accommodations are generous for a 43-footer and her tankage supports long passages, while her motion and stability numbers mark her as a considered ocean candidate. The deck-stepped rig is the one noted compromise against a keel-stepped alternative.

Pros