Production peaked in 1974 and 1975. Only about a dozen boats were completed during the final two years, making later examples comparatively scarce.
Design and Construction
The 10M reflects Pearson’s cruiser-racer philosophy, but reaches a little closer to the racer end of the spectrum than many of its stablemates from the same period. Its figures bear that out: displacement is 12,441 pounds on a 28.3-foot waterline, with 5,445 pounds of lead providing a 44 percent ballast ratio. A sail-area-to-displacement figure near 15.6 places it among moderate racers in its displacement-length grouping.
The hull is a one-piece, hand-laid fiberglass laminate with integrally bonded bulkheads. The deck and cockpit form a separate one-piece laminate, with a balsa core for stiffness and insulation. At the hull-to-deck joint, Pearson used no fewer than three fastening methods, plus a mechanical attachment and fiberglass overlay, for watertight integrity. It’s a belt-and-suspenders approach typical of Pearson’s production mindset during the Shaw era.
Rig, Keel, and Handling
The 10M carries a masthead sloop rig, with a tapered 6060-T6 alloy mast stepped through the deck. Aluminum spreaders and stainless-steel 1x19 standing rigging with swaged fittings support the spar. Two No. 43 Lewmar chrome sheet winches and a recessed mainsheet traveler on the bridge deck handle the standard 524-square-foot sail plan. A pair of No. 8 Lewmar halyard winches serves the internal-track mast.
The fin keel draws roughly 5.9 feet, and theoretical hull speed is 7.1 knots. The boat has a capsize-screening value of 1.90 and a motion-comfort ratio in the mid-25s. Together, those figures led review data to rate it more comfortable than 58 percent of comparable designs.
The same data noted that the 10M carries slightly less rig than 27 percent of similar sailboats. That suggests it is a touch underrigged for its displacement in very light air.
Accommodations
Below, the 10M uses its 11-foot beam to provide sleeping space for seven without feeling cramped. One database comparison found it more spacious than 69 percent of similar designs. The low-profile cabin top preserves a clear view from the helm while maintaining headroom below.
Forward, the V-berth has trap stowage, a starboard hanging locker, and a translucent overhead hatch. The head is to port, with a fiberglass sole, a Dorade vent on the cabin top, and a mirrored light overhead.
In the main saloon, there’s a pull-out double berth to port and upper and lower berths to starboard. A folding drop-leaf table stows against the forward bulkhead, revealing teak bookshelves when folded away.
Aft to port, the quarterberth adjoins a navigation command center, lift-top chart table, and electronics access—an unusual concession to the navigator in a 33-footer. The L-shaped galley to starboard includes a foot-pump stainless-steel sink, a top-loading icebox, and a gimbaled two-burner alcohol stove, along with drawers and sliding lockers.
Equipment and Systems
The factory specification centered on a 30-horsepower, four-cylinder gasoline engine with direct drive, a 35-amp alternator, and a Tobin bronze shaft running through a stuffing box.
Two 20-gallon fiberglass water tanks are fitted beneath the main-cabin berths. A 20-gallon Monel fuel tank fills through the cockpit sole.
The electrical system uses two 12-volt 90-amp batteries. Color-coded stranded copper wiring runs high above the bilge, and a bonded grounding system connects the chainplates, seacocks, engine, and tank.
On the weather deck, the 10M has a self-bailing cockpit, port and starboard sail lockers with molded drains, and a lazarette. A manual bilge pump and engine-compartment ventilation address safety.
Verdict
The Pearson 10M is a Shaw-designed cruiser-racer that traded a little cruising ballast-comfort conservatism for a quicker, more spacious 33-foot hull. Its genuinely thoughtful navigator’s station and rigorously built hull-to-deck joint stand out.
It isn’t a featherweight racer, but its moderate displacement and fin-keel package still make it a lively design today.
Pros
- Bill Shaw design with a racer-leaning cruiser-racer balance
- Balsa-cored deck and triple-fastened hull joint for stiffness and sealing
- Quarterberth navigation center, rare in a boat of this length
- Spacious, beam-driven interior with berths for seven
Cons
- Gasoline auxiliary and modest 20-gallon fuel capacity
- Slightly underrigged compared with similar lightweight contemporaries
- Only about a dozen built during the final two production years, limiting the supply of later boats
