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Adventurer 17
Designer: Sovereign Design Group  ·  Builder: Custom Fiberglass Products (Usa)  ·  First built: 1980
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About the Adventurer 17

Designed by Sovereign Design Group and built by Custom Fiberglass Products starting in 1980, this compact 17-footer represents a thoughtful approach to small boat coastal cruising and day sailing. The Adventurer 17's fractional sloop rig and moderate sail area of 138 square feet provide balanced performance without being overpowering for novice sailors or those seeking relaxed sailing experiences. With its shoal draft fin keel drawing just 1.83 feet, this fiberglass sailboat excels in shallow waters and crowded anchorages where deeper-draft vessels cannot venture. The substantial ballast ratio contributes to good stability, while the comfortable beam of 7 feet provides adequate interior space for a boat of this size. At 1,350 pounds displacement, she's substantial enough to handle moderate chop yet light enough for easy trailering and launching. The boat's design characteristics suggest she's ideally suited for protected coastal waters, lake sailing, and learning applications. Her modest hull speed of 5.10 knots won't win races, but the Adventurer 17 prioritizes stability and ease of handling over outright performance. The low comfort ratio indicates she's better suited for day sailing than extended cruising, making her an excellent choice for weekend sailors and sailing instruction programs seeking a forgiving, well-mannered small boat.

Core Dimensions
LOA (Length Overall) 17.00 ft / 5.18 m
LWL (Waterline Length) 14.50 ft / 4.42 m
Beam 7.00 ft / 2.13 m
Max Draft 1.83 ft / 0.56 m
Displacement 1,350.00 lb / 612 kg
Ballast 625.00 lb / 283 kg
Sail Area (Reported) 138.00 ft² / 12.82 m²
Design & Construction
Hull Type Fin (shoal draft)
Rigging Type Fractional Sloop
Construction FG
Designer Sovereign Design Group
Builder Custom Fiberglass Products (USA)
First Built 1980
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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
18.11
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
46.3
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
197.69
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
10.24
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
2.54
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. 5.10 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. 362.67 pounds/inch
How It Compares

vs. Montgomery 17, Vagabond 17, Venture 17

This boat Similar boats
Dimensions
LOA
Adventurer 17 ★
17.0 ft
Montgomery 17
17.1 ft
Vagabond 17
17.0 ft
Venture 17
17.3 ft
LWL
Adventurer 17 ★
14.5 ft
Montgomery 17
15.8 ft
Vagabond 17
15.0 ft
Venture 17
15.0 ft
Beam
Adventurer 17 ★
7.0 ft
Montgomery 17
7.3 ft
Vagabond 17
7.3 ft
Venture 17
6.3 ft
Displacement
Adventurer 17 ★
1 lbs
Montgomery 17
1 lbs
Vagabond 17
950 lbs
Venture 17
900 lbs
Ballast
Adventurer 17 ★
625 lbs
Montgomery 17
550 lbs
Vagabond 17
345 lbs
Venture 17
270 lbs
Sail Area
Adventurer 17 ★
138 sq ft
Montgomery 17
154 sq ft
Vagabond 17
Venture 17
Performance
PHRF Rating (lower = faster)
Adventurer 17 ★
Montgomery 17
264 s/nm
Vagabond 17
270 s/nm
Venture 17
314 s/nm
SA / Displacement (higher = more powerful)
Adventurer 17 ★
18.1
Montgomery 17
19.7
Vagabond 17
13.6
Venture 17
Ballast / Disp (higher = stiffer)
Adventurer 17 ★
46.3 %
Montgomery 17
39.3 %
Vagabond 17
36.3 %
Venture 17
30.0 %
Comfort Ratio (higher = more comfortable offshore)
Adventurer 17 ★
10.2
Montgomery 17
9.4
Vagabond 17
Venture 17
Capsize Screening (lower = safer)
Adventurer 17 ★
2.54
Montgomery 17
2.62
Vagabond 17
Venture 17
Displacement / Length (lower = lighter)
Adventurer 17 ★
197
Montgomery 17
157
Vagabond 17
125
Venture 17
119
Hull Speed
Adventurer 17 ★
5.1 kts
Montgomery 17
5.3 kts
Vagabond 17
Venture 17
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