Design and Construction
The Pearson 37 is a 36.9-foot sloop with a 30.1-foot waterline and an 11.8-foot beam. Its 6.5-foot fin keel carries 5,400 pounds of lead ballast, while displacement is 12,800 pounds.
The IOR influence is unmistakable in the hull’s pinched ends and bustle. Shaw called the shape state-of-the-art when paired with a comfortable but lightweight interior.
Pearson built the balsa-cored hull from alternating layers of mat and roving for impact resistance. The deck is also balsa-cored, with encapsulated plywood substituted where hardware is fastened. Shaw’s engineering approach was to evaluate the loads and then add a 30 percent fudge factor. As a result, the early Pearson 37 had conservative construction schedules and hardware for its era.
The hull-to-deck joint consists of an inward-facing flange bedded with silicone and glassed on the underside, then bolted through the teak toe rail with stainless fasteners. A small skeg supports the rudder, and flush through-hulls are fitted throughout.
Rig and Sailing Performance
The tapered, keel-stepped mast has double spreaders, Navtec rod shrouds, and a deck-track babystay. Halyards run inside the mast to four Lewmar 42 winches mounted just aft of the mast.
The 640-square-foot sail plan produces a sail-area-to-displacement ratio of 18.7. For offwind sailing, the boat carries a 1,302-square-foot spinnaker.
Upwind performance is the design’s strong suit. The test boat pointed within 30 to 35 degrees of apparent wind and tacked through 80 to 85 degrees. With a 130% jib and full main, it reached 6.7 to 7.4 knots on a close reach. Shaw noted that the rudder stall observed when footing off in heavy puffs was a direct result of the IOR design targets.
Most racing owners report a PHRF rating of around 105-108. The design rates only 15 to 20 seconds slower than newer boats of similar size.
Cockpit and Accommodations
The cockpit is 8 feet 6 inches long and seats six to eight people on contoured seats that Shaw likely shaped better than any other production-boat designer of his time. A port lazarette opens 40 inches wide and can swallow a deflated dinghy.
Below, the Pearson 37 has a varnished wood interior lined with spruce and hickory, along with teak-and-holly cabin soles. The enclosed head and master stateroom are reached through wooden doors.
The layout provides berths for seven, an L-shaped galley to port, and a functional navigation station opposite. The bow stateroom has 6-foot standing headroom and a V-berth measuring 5 feet 11 inches wide at the head. Two hatches ventilate the forepeak and head.
Engine and Systems
The test boat’s 23-horsepower Universal three-cylinder diesel drove a Martec folding prop. At three-quarters throttle, it produced a motoring speed of 6.2 knots and good reverse tracking.
Many boats left the factory with a gimbaled propane stove, which owners later replaced with electric ranges. The well-insulated icebox can hold block ice for up to five days.
Wiring runs are accessible and color-coded, and owners report no electrical failures.
Known Issues
Several owners report minor hull blistering. Those same owners also noted that the adhesive securing the interior wood panels eventually loosened.
Shaw acknowledged that the portlights would eventually leak as their original silicone degraded. He also theorized that period gelcoat yellowing and crazing could be traced to an ingredient substitution during the oil crisis.
The hull-to-deck joint is also bedded with silicone, creating another potential source of leaks as the material ages.
The boat can be noisy underway because there’s no insulation beneath the cockpit sole. One owner reduced the belowdecks noise level to 62 decibels by adding heavy insulation.
Ownership and Availability
Pearson Yachts ceased operations in 1991, ending the original production run. With only 43 Pearson 37s built between 1982 and 1986, buyers may need patience to find one.
The Verdict
The Pearson 37 is a rare Shaw-designed IOR cruiser-racer with a genuine dual personality. It’s quick upwind, roomy enough for family weeks aboard, and built with a conservative margin that has aged better than its blister and portlight quirks might suggest.
Its limited production rewards a patient buyer who can live with the noise and silicone-bedded joints.
Pros
- IOR-derived upwind performance, with PHRF ratings near those of newer boats
- Berths for seven, a varnished interior, and an enclosed stateroom and head
- Conservative balsa-cored construction with a 30 percent load margin
Cons
- Silicone portlight seals and the deck joint eventually leak
- Noisy cockpit sole and reports of minor hull blistering
- Interior adhesives loosen over time
