Now out of production, the Maxus 21 remains a tidy example of how much accommodation and sailing ability can fit into roughly 2,750 pounds of fiberglass, including its 8-foot-1 beam.
Design and Construction
Northman built the Maxus 21 in Poland with a solid fiberglass hull and deck, with no core. The hull has broad aft sections and a two-level cockpit. This arrangement keeps the crew’s weight low and dry while giving the helmsman a perch above the cabin trunk.
The boat measures 23.29 feet overall, with an 8.14-foot beam—a length-to-beam ratio of 2.52 that helps explain the roomy plan view. Displacement is 2,756 pounds, including 617 pounds of ballast, for a ballast ratio of 23 percent.
A capsize screening value of 2.32 and a Motion Comfort Ratio of 13.2 place the Maxus 21 firmly in the sheltered-water camp. The European Union certified it as Class C—inshore—meaning it was designed for coastal waters and large bays.
Its dimensions and weight fall within the limits for unrestricted road travel, allowing the complete package to be towed behind a family car.
Rig and Handling
The Maxus 21 carries a modern fractional sloop rig on a 27.89-foot mast, with 247.57 square feet of sail. Its sail-area-to-displacement ratio is 20.15. With a displacement-length ratio of 170, the yacht falls into the “light racers” category; the builder cites excellent seaworthiness and racing ability as design goals.
The pivoting centreboard changes the draft from about 0.98 feet when raised to 4.1 feet when lowered. That range lets the boat work through shallow estuaries while still gaining the extra draft needed to stand up to a coastal breeze.
Wetted surface is about 182 square feet, and immersion is roughly 548 pounds per inch. The theoretical hull-speed ceiling for a displacement boat of this length is 5.9 knots.
None of these figures makes the Maxus 21 an ocean racer—the capsize screen alone would bar it from offshore events—but together they describe a quick, light-handed dayboat.
Accommodations
Below deck, the Maxus 21 offers an unexpectedly spacious and ergonomic interior for a yacht of its size. The builder describes the saloon as spacious, and the layout includes a compact galley.
Comfortable double berths in the bow and stern provide sleeping space for four. The manufacturer describes the boat as offering a high level of comfort for a four-person crew, while headroom is near average for the class.
The point isn’t luxury but usable volume: four people can sleep aboard and still have somewhere to cook, which most 23-footers can’t honestly claim.
The Verdict
The Maxus 21 is a clever pocket cruiser that trades offshore ambition for launch-ramp freedom. It is genuinely trailerable, genuinely sleeps four, and has enough spark under sail to entertain a club racer, all within a CE Class C envelope.
Its limits are real and clearly defined: this is an inshore boat with a light build and no bluewater pretensions.
Pros
- Trailerable within road limits and usable without marina infrastructure
- Four berths and a roomy, ergonomic cabin for its length
- Lifting centreboard provides drafts from about 0.98 feet to 4.1 feet and allows the boat to dry out near a beach
- Light-racer characteristics and a modern fractional rig
Cons
- Class C inshore certification only; the capsize screen bars it from ocean racing
- Small size limits comfort and payload despite the clever layout





