Hull Form and Design Philosophy
The SP Cruiser's hull carries the trademark Island Packet bow and wide beam familiar from the company's sailing line, but the stern departs meaningfully from that tradition. A broader transom enhances motoring performance while also creating a generous swim platform accessed via a door in the hull itself — a feature molded into the hull to assure its structural integrity. The full keel with attached rudder gives the boat the directional stability expected of an offshore cruiser, though the flat, broad stern sections with minimal deadrise are optimized for life under power rather than under sail. To address the buoyancy that a wide boarding platform adds aft of the rudder, Island Packet fitted two small skegs on the aft underbody — a thoughtful engineering response to a genuine handling concern.
Rig, Sail Plan, and Handling Under Sail
Island Packet simplified the sail plan to match the SP's intended use. An in-mast furling main with no traveler pairs with a small, self-tending headsail on a Hoyt boom, reducing the number of lines required to a handful, all led to a single electric winch on the starboard side of the aft cockpit. The arrangement is straightforward to operate single-handed or short-handed, but it comes at a cost in light-air performance. With a sail area-to-displacement ratio of 15, the rig depends on favorable and adequate wind; in light Chesapeake conditions with 16 knots of beam wind, the boat sailed an honest 6.3 knots, which speaks to the design's capability in its preferred conditions. Upwind, however, the 714 square feet of sail area could not compensate for the boat's weight and windage, and windward performance is not the SP's strength. The optional reacher package creating a solent rig is a worthwhile addition for any owner expecting significant downwind passages.
Pilothouse, Accommodations, and Liveability
The SP Cruiser's defining interior feature is its large, protected helm station that doubles as a raised-deck saloon. The centerline helm offers excellent visibility aided by three windshield wipers and washers, with two swiveling captain's chairs that serve equally as helm seats or saloon seating at the leafed table. The L-shaped settee provides a panoramic 360-degree view and is long enough to function as a proper sea berth on passage. Three steps below, the galley is positioned to port with ample counter space, a large refrigerator, and a two-burner propane stove; a centerline wet counter island adds practical workspace without isolating the cook from conversation. Below, the owner's cabin forward features a walk-around double berth with two hanging lockers, while the guest cabin to starboard offers twin berths. A single head with an enormous shower stall serves both cabins. The boat's more than 300 cubic feet of stowage, headroom ranging between 6 feet 6 inches and 6 feet 10 inches, and the forward deck cockpit designed purely for lounging collectively make the case that this is a vessel built to live aboard comfortably.
Motoring Range and Propulsion
The SP Cruiser's motoring credentials are central to its identity. A turbocharged Yanmar 4JH engine driving a fixed three-bladed propeller, fed by a 215-gallon diesel tank, delivers a cruising range of 1,000 miles at six knots — a figure that opens genuine passagemaking potential for a coastal or ICW-oriented owner. Forward, boat speed, engine torque, and helm responsiveness were all fine in initial testing, but the SP didn't back well and may benefit from the optional bow thruster in tight marina situations. The 55-foot mast height and shoal 3-foot-8-inch draft make the boat well suited to the Intracoastal Waterway while still leaving open the option of offshore runs.
Known Weaknesses and Areas for Refinement
The initial production model showed several areas that warranted attention. The offset cabin door means steering and sheeting controls are located far from each other — an ergonomic compromise that Island Packet was working to address at launch with an experimental pilothouse winch prototype. The transom's gate hinges protrude into the boarding area, presenting sharp edges precisely where someone might be climbing aboard from a dinghy. The dorade vents, given their forward location ahead of most sail and motor controls, would benefit from protective cages. More broadly, Cruising World's reviewer noted that through years of continuous production, the sailing line had been refined to the smallest detail — and the SP, as a new model at launch, had not yet benefited from that same accumulated refinement.
Construction and Stability
The SP Cruiser is built to Island Packet's established standards: a robust, one-piece hull in hand-laid solid fiberglass with a Polycore sandwich deck mechanically fastened to a wide hull flange with urethane adhesive. Island Packet backs the structure with a 10-year deck, hull, and osmotic warranty. Despite a ballast ratio of only 24 percent, the hull demonstrated good initial stability in testing; a moment of capsize of 155 degrees provides meaningful security if an owner is caught in serious offshore conditions. The high stainless-steel pipe rails and traditional bulwarks add practical safety for moving around the deck underway.
The Verdict
The Island Packet SP Cruiser is a well-thought-out answer to a real question: how do you keep experienced sailors on the water as their tolerance for discomfort, complexity, and weather windows diminishes? By honestly calling it a motorsailer and designing accordingly, Island Packet produced a vessel with genuine range, exceptional liveability, and sailing capability that functions as welcome bonus rather than the primary mission. It will not satisfy anyone with windward ambitions, but for the owner whose cruising life centers on the ICW, the Gulf, or long coastal hops with time in comfortable anchorages, the SP Cruiser delivers on its promise.
Pros
- Exceptional pilothouse comfort and 360-degree visibility from the raised saloon
- 1,000-mile motoring range on a single tank
- Shoal draft and modest mast height suit the Intracoastal Waterway
- Hand-laid solid fiberglass hull with a robust 10-year warranty
- Simple, short-handed sail plan with electric winch assistance
- Generous stowage and cruising-grade headroom throughout
Cons
- Weak windward sailing performance; not designed for upwind work
- Low ballast ratio limits reserve stability relative to pure sailboats
- Steering and sheeting stations separated by the offset cabin door
- Protruding transom gate hinges create a hazard at the boarding platform
- Stern backing maneuvers require care; bow thruster advisable for tight slips
- As an early-production model, lacked the iterative refinement of the established Island Packet sailing line
