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Puma 37
 ·  Builder: Naoglass (Esp)  ·  First built: 1981
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About the Puma 37

Built by Spanish manufacturer Naoglass starting in 1981, this 36-foot sailboat represents a well-balanced approach to coastal cruising and club racing. The Puma 37's moderate proportions and fin keel configuration with rudder on skeg provide predictable handling characteristics that appeal to both experienced sailors and those transitioning to larger boats. With a displacement of 15,000 pounds and ballast-to-displacement ratio of nearly 38%, the design offers reassuring stability without sacrificing performance. The masthead sloop rig carries 732 square feet of sail area, delivering respectable speed potential while remaining manageable for short-handed sailing. A comfort ratio of 25.49 indicates motion that's neither overly quick nor uncomfortably sluggish in seaway conditions. The hull's 12.5-foot beam provides generous interior volume for weekend cruising, while the 5.25-foot draft allows access to most coastal harbors. Fiberglass construction ensures durability and relatively straightforward maintenance. The 45-horsepower auxiliary engine provides adequate power for maneuvering in tight quarters or motoring in calm conditions. This design suits sailors seeking a versatile platform for coastal exploration, club racing, or extended weekend cruising, offering a practical balance of performance, comfort, and seaworthiness that has proven enduring since the early 1980s.

Core Dimensions
LOA (Length Overall) 36.02 ft / 10.98 m
LWL (Waterline Length) 29.53 ft / 9.00 m
Beam 12.50 ft / 3.81 m
Max Draft 5.25 ft / 1.60 m
Displacement 15,000.00 lb / 6,804 kg
Ballast 5,665.00 lb / 2,570 kg
Sail Area (Reported) 732.00 ft² / 68.01 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG
Builder Naoglass (ESP)
First Built 1981
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Performance Ratios
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
 19.33
Ballast/Displacement Ballast to Displacement ratio shows what percentage of the boat's total weight is ballast. Higher values generally mean better initial stability and stiffer sail carrying.
30–35% — Typical cruiser35–45% — Stiff performance boatOver 45% — Racing oriented
 37.77
Displacement/Length Displacement to Length ratio measures how heavy a boat is relative to its waterline length. Lower values mean a lighter, faster boat.
Under 100 — Ultralight racer100–200 — Light cruiser/racer200–300 — Moderate cruiser300–400 — Heavy cruiserOver 400 — Very heavy
 260.05
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
 25.49
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
 2.03
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. 7.28 kn
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. 1,318.92 pounds/inch
Engine & Accommodations
Engine Type Diesel
Horsepower 45
Fuel Capacity 40 gals / 151 L
Water Capacity 132 gals / 500 L
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