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Typhoon Sr Cape Dory
Designer: Carl Alberg  ·  Builder: Cape Dory Yachts (Usa)  ·  First built: 1984
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About the Typhoon Sr Cape Dory

Designed by renowned naval architect Carl Alberg, this compact cruiser represents Cape Dory's commitment to traditional bluewater construction in a manageable size. Built between 1984 and 1987 with only 57 hulls produced, the Typhoon Sr has become a sought-after pocket cruiser among sailors who prioritize seaworthiness over speed. The boat's substantial displacement of 3,300 pounds and generous ballast-to-displacement ratio of over 50% create exceptional stability and sea-keeping ability. Her long keel configuration provides directional stability and protects the propeller and rudder, though it sacrifices some maneuverability in tight quarters. The fractional sloop rig with 245 square feet of sail area offers balanced performance and manageable sail handling for shorthanded crews. With a comfort ratio of 19.32, this design falls into the "moderate" range, making her suitable for coastal cruising and short offshore passages while remaining reasonably responsive. The low capsize screening value of 2 indicates good stability characteristics typical of Alberg's conservative approach to yacht design. Cape Dory's reputation for solid fiberglass construction and attention to detail makes surviving examples particularly desirable among sailors seeking a small but capable cruising boat with traditional sailing characteristics.

Core Dimensions
LOA (Length Overall) 22.42 ft / 6.83 m
LWL (Waterline Length) 16.50 ft / 5.03 m
Beam 7.42 ft / 2.26 m
Max Draft 3.08 ft / 0.94 m
Displacement 3,300.00 lb / 1,497 kg
Ballast 1,700.00 lb / 771 kg
Sail Area (Reported) 245.00 ft² / 22.76 m²
Design & Construction
Hull Type Long Keel
Rigging Type Fractional Sloop
Construction FG
Designer Carl Alberg
Builder Cape Dory Yachts (USA)
First Built 1984
Last Built 1987
Number Built 57
Associations Cape Dory Sailboat Owners Association
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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
17.73
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
51.52
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
327.95
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
19.32
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
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. 5.44 kn
S# (Speed Number) The Speed Number (S#) is a quick performance index. Higher values indicate a faster, more powerful design relative to its size.
Under 3.0 — Slow cruiser3.0–5.0 — Average cruiser5.0–7.0 — Performance cruiserOver 7.0 — Racer
1.6
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. 437.46 pounds/inch
SA/Displacement (Calc) Calculated Sail Area to Displacement ratio using actual measured sail dimensions rather than reported values. More precise than the reported SA/Disp figure. 17.8
Rig Dimensions
I (Foretriangle Height) 26.00 ft / 7.92 m
J (Foretriangle Base) 8.50 ft / 2.59 m
P (Mainsail Luff) 27.50 ft / 8.38 m
E (Mainsail Foot) 9.85 ft / 3.00 m
SA Fore 110.50 ft² / 10.27 m²
SA Main 135.44 ft² / 12.58 m²
SA Total (100%) 245.94 ft² / 22.85 m²
Est. Forestay Length 27.35 ft / 8.34 m
How It Compares

vs. Alberg 23, Sea Sprite 23 Weekender, Tanzer 22

This boat Similar boats
Dimensions
LOA
Typhoon Sr Cape Dory ★
22.4 ft
Alberg 23
22.5 ft
Sea Sprite 23 Weekender
22.5 ft
Tanzer 22
22.5 ft
LWL
Typhoon Sr Cape Dory ★
16.5 ft
Alberg 23
16.3 ft
Sea Sprite 23 Weekender
16.3 ft
Tanzer 22
19.8 ft
Beam
Typhoon Sr Cape Dory ★
7.4 ft
Alberg 23
7.0 ft
Sea Sprite 23 Weekender
7.0 ft
Tanzer 22
7.8 ft
Displacement
Typhoon Sr Cape Dory ★
3 lbs
Alberg 23
3 lbs
Sea Sprite 23 Weekender
3 lbs
Tanzer 22
2 lbs
Ballast
Typhoon Sr Cape Dory ★
1 lbs
Alberg 23
1 lbs
Sea Sprite 23 Weekender
1 lbs
Tanzer 22
1 lbs
Sail Area
Typhoon Sr Cape Dory ★
245 sq ft
Alberg 23
250 sq ft
Sea Sprite 23 Weekender
247 sq ft
Tanzer 22
Performance
SA / Displacement (higher = more powerful)
Typhoon Sr Cape Dory ★
17.7
Alberg 23
17.9
Sea Sprite 23 Weekender
17.7
Tanzer 22
Ballast / Disp (higher = stiffer)
Typhoon Sr Cape Dory ★
51.5 %
Alberg 23
41.8 %
Sea Sprite 23 Weekender
41.8 %
Tanzer 22
43.1 %
Comfort Ratio (higher = more comfortable offshore)
Typhoon Sr Cape Dory ★
19.3
Alberg 23
21.4
Sea Sprite 23 Weekender
21.4
Tanzer 22
Capsize Screening (lower = safer)
Typhoon Sr Cape Dory ★
2.00
Alberg 23
1.87
Sea Sprite 23 Weekender
1.87
Tanzer 22
Displacement / Length (lower = lighter)
Typhoon Sr Cape Dory ★
327
Alberg 23
348
Sea Sprite 23 Weekender
348
Tanzer 22
168
Hull Speed
Typhoon Sr Cape Dory ★
5.4 kts
Alberg 23
5.4 kts
Sea Sprite 23 Weekender
5.4 kts
Tanzer 22
Speed Number (higher = faster)
Typhoon Sr Cape Dory ★
1.6
Alberg 23
1.5
Sea Sprite 23 Weekender
1.5
Tanzer 22
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