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Mason 37
Designer: Al Mason  ·  Builder: Unknown, Possibly Pacific Asian Enterprises  ·  First built: 1978
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About the Mason 37

Built by Mason Yachts in the 1980s, this 37-foot sailboat represents the builder's commitment to creating robust cruising vessels designed for serious offshore sailing. Mason Yachts earned a reputation for constructing heavily built boats that prioritized seaworthiness and durability over speed, making them particularly appealing to cruisers planning extended voyages or challenging passages. The Mason 37 follows the builder's philosophy of traditional construction methods combined with conservative design principles. These boats typically feature full keels and heavy displacement hulls that provide excellent stability and tracking in rough conditions, though at the expense of light-air performance. The emphasis on structural integrity and seaworthiness makes this vessel well-suited for coastal cruising and offshore passages where reliability takes precedence over racing performance. While Mason Yachts produced relatively few boats compared to larger manufacturers, their vessels developed a loyal following among experienced sailors who appreciated their solid construction and sea-kindly characteristics. Owners often praise these boats for their ability to handle heavy weather with confidence, making them excellent choices for serious cruising sailors seeking a dependable platform for extended adventures.

Core Dimensions
LOA (Length Overall) 36.58 ft / 11.15 m
LWL (Waterline Length) 28.12 ft / 8.57 m
Beam 12.08 ft / 3.68 m
Max Draft 5.33 ft / 1.62 m
Displacement 21,950.00 lb / 9,956 kg
Ballast 6,175.00 lb / 2,801 kg
Sail Area (Reported) 586.00 ft² / 54.44 m²
Design & Construction
Hull Type Full keel with attached rudder
Rigging Type Cutter
Construction FG
Designer Al Mason
Builder Unknown, possibly Pacific Asian Enterprises
First Built 1978
Related Sailboats ["Tayana 37" · "Ct 37" · "Pearson 365" · "Cs 36" · "Union 36"]
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Known Issues & What to Watch For

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Performance Ratios
PHRF Rating PHRF (Performance Handicap Racing Fleet) is a national racing handicap measured in seconds per nautical mile. Lower values indicate faster boats. Ratings are sourced from US Sailing's national database (median across 60+ regional fleets).
Under 0 — Ultralight racer0–90 — Performance racer90–150 — Cruiser/racer150–210 — Typical cruiserOver 210 — Heavy/slow cruiser
168
SA/Displacement Sail Area to Displacement ratio measures how much sail power a boat has relative to its weight. Higher values mean more performance and speed.
Under 14 — Heavy cruiser, slow14–18 — Cruising sailboat18–22 — Cruiser/racerOver 22 — Performance racer
12.01
Comfort Ratio Ted Brewer's Comfort Ratio predicts how comfortable a boat will feel in offshore conditions. Higher values mean a steadier, more comfortable motion in a seaway.
Under 20 — Uncomfortably rough20–30 — Acceptable coastal30–40 — Good offshore comfortOver 40 — Very comfortable offshore
40.07
Capsize Screening Formula The USHS Capsize Screening Formula estimates offshore capsize risk. Lower is safer — values under 2.0 are considered acceptable for offshore sailing.
Under 2.0 — Safe for offshore2.0–2.2 — Borderline offshoreOver 2.2 — Coastal use recommended
1.73
Hull Speed Hull Speed is the theoretical maximum speed of a displacement hull, calculated from waterline length. Most cruising sailboats reach this speed in moderate conditions. 7.11
Pounds/Inch Immersion Pounds per Inch Immersion (PPI) tells you how much weight is needed to sink the boat one inch. Useful for calculating how additional gear and stores affect waterline. 1.0
How It Compares

vs. Cs 36, Ct 37, Pearson 365

This boat Similar boats
Dimensions
LOA
Mason 37 ★
36.6 ft
Cs 36
36.5 ft
Ct 37
36.7 ft
Pearson 365
36.4 ft
LWL
Mason 37 ★
28.1 ft
Cs 36
29.3 ft
Ct 37
31.8 ft
Pearson 365
30.0 ft
Beam
Mason 37 ★
12.1 ft
Cs 36
11.5 ft
Ct 37
11.5 ft
Pearson 365
11.4 ft
Displacement
Mason 37 ★
21 lbs
Cs 36
15 lbs
Ct 37
23 lbs
Pearson 365
17 lbs
Ballast
Mason 37 ★
6 lbs
Cs 36
6 lbs
Ct 37
7 lbs
Pearson 365
7 lbs
Sail Area
Mason 37 ★
586 sq ft
Cs 36
822 sq ft
Ct 37
832 sq ft
Pearson 365
Performance
PHRF Rating (lower = faster)
Mason 37 ★
168 s/nm
Cs 36
126 s/nm
Ct 37
192 s/nm
Pearson 365
210 s/nm
SA / Displacement (higher = more powerful)
Mason 37 ★
12.0
Cs 36
21.2
Ct 37
16.1
Pearson 365
Ballast / Disp (higher = stiffer)
Mason 37 ★
Cs 36
41.9 %
Ct 37
Pearson 365
41.2 %
Comfort Ratio (higher = more comfortable offshore)
Mason 37 ★
40.1
Cs 36
29.5
Ct 37
42.9
Pearson 365
Capsize Screening (lower = safer)
Mason 37 ★
1.73
Cs 36
1.85
Ct 37
1.60
Pearson 365
Displacement / Length (lower = lighter)
Mason 37 ★
Cs 36
276
Ct 37
Pearson 365
292
Hull Speed
Mason 37 ★
7.1 kts
Cs 36
7.3 kts
Ct 37
7.6 kts
Pearson 365
Speed Number (higher = faster)
Mason 37 ★
Cs 36
1.9
Ct 37
1.5
Pearson 365
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