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Costantini 30
Designer: Gilles Costantini  ·  Builder: Costantini (Fra)  ·  First built: 1971
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About the Costantini 30

With limited specifications available for public research, the Costantini 30 represents one of the more elusive designs in the 30-foot sailing yacht category. This Italian-designed vessel appears to have been produced in relatively small numbers, contributing to its scarcity in modern boat databases and making detailed technical information challenging to verify. Based on available evidence, this sailboat was likely intended for coastal cruising and moderate offshore passages, fitting the typical profile of European 30-foot designs from its era. The Costantini name suggests Italian craftsmanship, which historically emphasized elegant styling combined with practical Mediterranean sailing characteristics. Prospective buyers researching this model should expect to rely heavily on individual boat surveys and owner testimonials rather than comprehensive specification sheets. The limited availability of technical data means each example may vary more significantly than mass-produced alternatives, potentially offering unique characteristics but requiring more thorough inspection. For sailors drawn to distinctive designs with European heritage, the Costantini 30 may appeal despite documentation challenges. However, those requiring extensive specification comparisons or readily available parts and service networks might find more mainstream alternatives better suited to their needs.

Core Dimensions
LOA (Length Overall) 30.35 ft / 9.25 m
LWL (Waterline Length) 22.64 ft / 6.90 m
Beam 9.91 ft / 3.02 m
Max Draft 5.64 ft / 1.72 m
Displacement 5,952.00 lb / 2,700 kg
Ballast 2,976.00 lb / 1,350 kg
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Masthead Sloop
Construction FG
Designer Gilles Costantini
Builder Costantini (FRA)
First Built 1971
Last Built 1976
Number Built 5
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
50.0
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
228.97
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. 4.81 pounds/inch
Rig Dimensions
I (Foretriangle Height) 17.35
J (Foretriangle Base) 12.40 ft / 3.78 m
P (Mainsail Luff) 355.00 ft² / 32.98 m²
E (Mainsail Foot) 228.97
How It Compares

vs. Capri 30 Catalina, Cc 30 1 1 506, Santana 30, Tartan 31, Tartan 31 Piper

This boat Similar boats
Dimensions
LOA
Costantini 30 ★
30.4 ft
Capri 30 Catalina
30.0 ft
Cc 30 1 1 506
30.0 ft
Santana 30
29.9 ft
Tartan 31
31.3 ft
Tartan 31 Piper
31.3 ft
LWL
Costantini 30 ★
22.6 ft
Capri 30 Catalina
25.0 ft
Cc 30 1 1 506
24.9 ft
Santana 30
25.0 ft
Tartan 31
26.0 ft
Tartan 31 Piper
26.0 ft
Beam
Costantini 30 ★
9.9 ft
Capri 30 Catalina
10.8 ft
Cc 30 1 1 506
10.0 ft
Santana 30
10.0 ft
Tartan 31
10.9 ft
Tartan 31 Piper
10.9 ft
Displacement
Costantini 30 ★
5 lbs
Capri 30 Catalina
8 lbs
Cc 30 1 1 506
8 lbs
Santana 30
8 lbs
Tartan 31
9 lbs
Tartan 31 Piper
9 lbs
Ballast
Costantini 30 ★
2 lbs
Capri 30 Catalina
3 lbs
Cc 30 1 1 506
3 lbs
Santana 30
3 lbs
Tartan 31
3 lbs
Tartan 31 Piper
3 lbs
Sail Area
Costantini 30 ★
Capri 30 Catalina
387 sq ft
Cc 30 1 1 506
Santana 30
414 sq ft
Tartan 31
506 sq ft
Tartan 31 Piper
Performance
PHRF Rating (lower = faster)
Costantini 30 ★
Capri 30 Catalina
111 s/nm
Cc 30 1 1 506
Santana 30
174 s/nm
Tartan 31
159 s/nm
Tartan 31 Piper
SA / Displacement (higher = more powerful)
Costantini 30 ★
Capri 30 Catalina
15.5
Cc 30 1 1 506
Santana 30
16.6
Tartan 31
18.7
Tartan 31 Piper
Ballast / Disp (higher = stiffer)
Costantini 30 ★
50.0 %
Capri 30 Catalina
37.5 %
Cc 30 1 1 506
43.1 %
Santana 30
47.5 %
Tartan 31
43.2 %
Tartan 31 Piper
39.9 %
Comfort Ratio (higher = more comfortable offshore)
Costantini 30 ★
Capri 30 Catalina
Cc 30 1 1 506
Santana 30
21.7
Tartan 31
20.9
Tartan 31 Piper
Capsize Screening (lower = safer)
Costantini 30 ★
Capri 30 Catalina
Cc 30 1 1 506
Santana 30
2.00
Tartan 31
2.10
Tartan 31 Piper
Displacement / Length (lower = lighter)
Costantini 30 ★
228
Capri 30 Catalina
228
Cc 30 1 1 506
230
Santana 30
228
Tartan 31
229
Tartan 31 Piper
228
Hull Speed
Costantini 30 ★
Capri 30 Catalina
Cc 30 1 1 506
Santana 30
6.7 kts
Tartan 31
6.8 kts
Tartan 31 Piper
Speed Number (higher = faster)
Costantini 30 ★
Capri 30 Catalina
Cc 30 1 1 506
Santana 30
2.4
Tartan 31
2.6
Tartan 31 Piper
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