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Sagitta 35
Designer: Sparkman & Stephens  ·  Builder: Sagitta/Bianca (Den)  ·  First built: 1969
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About the Sagitta 35

Built between 1969 and 1976 by Danish builder Sagitta/Bianca, this 34.50-foot sailboat bears the distinguished pedigree of Sparkman & Stephens design. The renowned New York firm created a well-balanced cruiser-racer that reflects the design philosophy of the late 1960s, when offshore sailing was becoming increasingly popular among recreational sailors. With her fin keel and skeg-hung rudder configuration, the Sagitta 35 offers predictable handling characteristics that inspire confidence in coastal and offshore conditions. Her substantial displacement of 10,210 pounds, with more than half carried as ballast, provides excellent stability and seaworthiness. The masthead sloop rig with 516 square feet of sail area delivers respectable performance while remaining manageable for a small crew. The boat's moderate beam of 10 feet and six-foot draft strike a practical balance between interior space and sailing ability. Her comfort ratio of 26.05 indicates a motion that's comfortable for extended passages, while the capsize screening value of 1.85 suggests good offshore capability. This combination makes the Sagitta 35 well-suited for serious coastal cruising and medium-range offshore passages, appealing to sailors who appreciate classic Sparkman & Stephens design principles in a proven offshore platform.

Core Dimensions
LOA (Length Overall) 34.50 ft / 10.52 m
LWL (Waterline Length) 25.50 ft / 7.77 m
Beam 10.00 ft / 3.05 m
Max Draft 6.00 ft / 1.83 m
Displacement 10,210.00 lb / 4,631 kg
Ballast 5,710.00 lb / 2,590 kg
Sail Area (Reported) 516.00 ft² / 47.94 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG
Designer Sparkman & Stephens
Builder Sagitta/Bianca (DEN)
First Built 1969
Last Built 1976
Related Sailboats ["Ohlson 35" · "Bristol 35" · "Coronado 34" · "Fuji 35" · "Jason 35"]
Owner Reviews

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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
 17.6
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
 55.93
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
 274.89
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
 26.05
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
 1.85
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. 6.77 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
 2
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. 911.14 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. 17.61
Rig Dimensions
I (Foretriangle Height) 44.00 ft / 13.41 m
J (Foretriangle Base) 13.71 ft / 4.18 m
P (Mainsail Luff) 39.04 ft / 11.90 m
E (Mainsail Foot) 10.99 ft / 3.35 m
SA Fore 301.62 ft² / 28.02 m²
SA Main 214.52 ft² / 19.93 m²
SA Total (100%) 516.14 ft² / 47.95 m²
Est. Forestay Length 46.09 ft / 14.05 m
Engine & Accommodations
Engine Make Volvo Penta
Engine Model MD2
Engine Type Diesel
Fuel Capacity 21 gals / 79 L
Water Capacity 32 gals / 121 L
How It Compares

vs. Bristol 35, Coronado 34, Fuji 35

This boat Similar boats
Dimensions
LOA
Sagitta 35 ★
34.5 ft
Bristol 35
34.7 ft
Coronado 34
34.7 ft
Fuji 35
34.6 ft
LWL
Sagitta 35 ★
25.5 ft
Bristol 35
23.8 ft
Coronado 34
28.2 ft
Fuji 35
26.0 ft
Beam
Sagitta 35 ★
10.0 ft
Bristol 35
10.0 ft
Coronado 34
10.0 ft
Fuji 35
10.0 ft
Displacement
Sagitta 35 ★
10 lbs
Bristol 35
12 lbs
Coronado 34
10 lbs
Fuji 35
16 lbs
Ballast
Sagitta 35 ★
5 lbs
Bristol 35
5 lbs
Coronado 34
4 lbs
Fuji 35
5 lbs
Sail Area
Sagitta 35 ★
516 sq ft
Bristol 35
529 sq ft
Coronado 34
521 sq ft
Fuji 35
538 sq ft
Performance
PHRF Rating (lower = faster)
Sagitta 35 ★
—
Bristol 35
189 s/nm
Coronado 34
174 s/nm
Fuji 35
—
SA / Displacement (higher = more powerful)
Sagitta 35 ★
17.6
Bristol 35
15.8
Coronado 34
17.4
Fuji 35
13.4
Ballast / Disp (higher = stiffer)
Sagitta 35 ★
55.9 %
Bristol 35
—
Coronado 34
—
Fuji 35
36.6 %
Comfort Ratio (higher = more comfortable offshore)
Sagitta 35 ★
26.1
Bristol 35
33.3
Coronado 34
25.1
Fuji 35
41.1
Capsize Screening (lower = safer)
Sagitta 35 ★
1.85
Bristol 35
1.73
Coronado 34
1.83
Fuji 35
1.58
Displacement / Length (lower = lighter)
Sagitta 35 ★
274
Bristol 35
—
Coronado 34
—
Fuji 35
414
Hull Speed
Sagitta 35 ★
6.8 kts
Bristol 35
6.5 kts
Coronado 34
7.1 kts
Fuji 35
6.8 kts
Speed Number (higher = faster)
Sagitta 35 ★
2.0
Bristol 35
1.0
Coronado 34
2.6
Fuji 35
0.9
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