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Amazon 37
Designer: Grahame Shannon  ·  Builder: Amazon Yachts (Can)  ·  First built: 1984
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About the Amazon 37

Designed by Grahame Shannon and built by Amazon Yachts in Canada starting in 1984, this steel-hulled cruiser represents a thoughtful approach to bluewater sailing. With only 17 hulls constructed, the Amazon 37 remains a relatively rare find in today's used boat market, appealing to sailors seeking a robust offshore platform with distinctive character. The steel construction provides exceptional strength and durability for extended cruising, while the fin keel and rudder-on-skeg configuration offers a good balance of performance and tracking stability. The cutter rig enhances versatility in varying wind conditions, particularly valuable for offshore passages where sail plan flexibility becomes crucial. At 20,350 pounds displacement with 7,000 pounds of ballast, this yacht carries the weight and stability numbers that serious cruisers appreciate for ocean voyaging. The comfort ratio of 33.26 suggests a motion that favors seaworthiness over speed, while the capsize screening value of 1.76 falls within acceptable parameters for offshore work. Her hull speed of 7.76 knots indicates respectable performance for a cruising yacht of this displacement. The 50-horsepower engine provides adequate auxiliary power for maneuvering in tight quarters and charging batteries during extended passages.

Core Dimensions
LOA (Length Overall) 37.00 ft / 11.28 m
LWL (Waterline Length) 33.50 ft / 10.21 m
Beam 12.00 ft / 3.66 m
Max Draft 5.50 ft / 1.68 m
Displacement 20,350.00 lb / 9,231 kg
Ballast 7,000.00 lb / 3,175 kg
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Cutter
Construction Steel
Designer Grahame Shannon
Builder Amazon Yachts (CAN)
First Built 1984
Number Built 17
Owner Reviews

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Performance Ratios
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
34.4
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
241.65
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
33.26
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
1.76
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. 7.76 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. 1,436.39 pounds/inch
Engine & Accommodations
Engine Make Perkins
Engine Model 4-108
Engine Type Diesel
Horsepower 50
Fuel Capacity 80 gals / 303 L
Water Capacity 120 gals / 454 L
How It Compares

vs. Allmand 35 Pilot House, Seafarer 37, Valiant 37, Valiant Esprit 37, Westwind 38

This boat Similar boats
Dimensions
LOA
Amazon 37 ★
37.0 ft
Allmand 35 Pilot House
34.8 ft
Seafarer 37
36.7 ft
Valiant 37
37.0 ft
Valiant Esprit 37
37.0 ft
Westwind 38
37.9 ft
LWL
Amazon 37 ★
33.5 ft
Allmand 35 Pilot House
28.2 ft
Seafarer 37
31.3 ft
Valiant 37
31.6 ft
Valiant Esprit 37
31.7 ft
Westwind 38
33.0 ft
Beam
Amazon 37 ★
12.0 ft
Allmand 35 Pilot House
11.7 ft
Seafarer 37
11.8 ft
Valiant 37
11.5 ft
Valiant Esprit 37
11.5 ft
Westwind 38
12.0 ft
Displacement
Amazon 37 ★
20 lbs
Allmand 35 Pilot House
12 lbs
Seafarer 37
16 lbs
Valiant 37
17 lbs
Valiant Esprit 37
17 lbs
Westwind 38
19 lbs
Ballast
Amazon 37 ★
7 lbs
Allmand 35 Pilot House
4 lbs
Seafarer 37
6 lbs
Valiant 37
6 lbs
Valiant Esprit 37
6 lbs
Westwind 38
7 lbs
Sail Area
Amazon 37 ★
Allmand 35 Pilot House
526 sq ft
Seafarer 37
650 sq ft
Valiant 37
667 sq ft
Valiant Esprit 37
Westwind 38
Performance
SA / Displacement (higher = more powerful)
Amazon 37 ★
Allmand 35 Pilot House
16.1
Seafarer 37
16.1
Valiant 37
16.2
Valiant Esprit 37
Westwind 38
Ballast / Disp (higher = stiffer)
Amazon 37 ★
34.4 %
Allmand 35 Pilot House
35.8 %
Seafarer 37
40.5 %
Valiant 37
39.4 %
Valiant Esprit 37
39.4 %
Westwind 38
39.1 %
Comfort Ratio (higher = more comfortable offshore)
Amazon 37 ★
33.3
Allmand 35 Pilot House
23.3
Seafarer 37
29.1
Valiant 37
30.6
Valiant Esprit 37
Westwind 38
Capsize Screening (lower = safer)
Amazon 37 ★
1.76
Allmand 35 Pilot House
2.04
Seafarer 37
1.85
Valiant 37
1.79
Valiant Esprit 37
Westwind 38
Displacement / Length (lower = lighter)
Amazon 37 ★
241
Allmand 35 Pilot House
239
Seafarer 37
241
Valiant 37
240
Valiant Esprit 37
238
Westwind 38
238
Hull Speed
Amazon 37 ★
7.8 kts
Allmand 35 Pilot House
7.1 kts
Seafarer 37
7.5 kts
Valiant 37
7.5 kts
Valiant Esprit 37
Westwind 38
Speed Number (higher = faster)
Amazon 37 ★
Allmand 35 Pilot House
2.2
Seafarer 37
2.1
Valiant 37
2.2
Valiant Esprit 37
Westwind 38
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