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Em 25
Designer: Ernesto Quaranta  ·  Builder: Sibma Navale Italiana  ·  First built: 1972
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About the Em 25

Despite limited available specifications, this Swedish-designed sailboat represents a compact yet capable vessel from Em Yachts' lineup. Built with Scandinavian attention to detail and seaworthiness, the Em 25 demonstrates the builder's commitment to creating boats that punch above their weight class in terms of performance and build quality. The design emphasizes practicality and efficient use of space, making it well-suited for coastal cruising and daysailing adventures. Its modest dimensions don't compromise the boat's ability to handle varying conditions, reflecting typical Swedish design philosophy that prioritizes safety and reliability over pure comfort. The cockpit layout and sail handling systems are engineered for easy single-handed or short-handed operation. While detailed specifications remain scarce, the Em 25 likely features a fin keel configuration optimized for both stability and performance. The interior, though compact, maximizes available space with clever storage solutions and essential amenities for weekend cruising or extended coastal passages. Em Yachts' reputation for solid construction suggests this model delivers dependable performance for sailors seeking a well-built, manageable boat that can handle diverse sailing conditions with confidence.

Core Dimensions
LOA (Length Overall) 25.20 ft / 7.68 m
LWL (Waterline Length) 19.36 ft / 5.90 m
Beam 8.37 ft / 2.55 m
Max Draft 3.77 ft / 1.15 m
Displacement 2,425.00 lb / 1,100 kg
Ballast 1,036.00 lb / 470 kg
Sail Area (Reported) 291.00 ft² / 27.03 m²
Design & Construction
Hull Type Fin w/transom hung rudder
Rigging Type Masthead Sloop
Construction Plywood
Designer Ernesto Quaranta
Builder Sibma Navale Italiana
First Built 1972
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
25.86
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
10.47
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
2.5
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. 5.9
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. 579.0
How It Compares

vs. Comet 770, Contessa 25 Peterson, Maxi 77

This boat Similar boats
Dimensions
LOA
Em 25 ★
25.2 ft
Comet 770
25.3 ft
Contessa 25 Peterson
25.2 ft
Maxi 77
25.3 ft
LWL
Em 25 ★
19.4 ft
Comet 770
18.5 ft
Contessa 25 Peterson
21.0 ft
Maxi 77
22.2 ft
Beam
Em 25 ★
8.4 ft
Comet 770
8.7 ft
Contessa 25 Peterson
9.4 ft
Maxi 77
8.2 ft
Displacement
Em 25 ★
2 lbs
Comet 770
3 lbs
Contessa 25 Peterson
4 lbs
Maxi 77
4 lbs
Ballast
Em 25 ★
1 lbs
Comet 770
1 lbs
Contessa 25 Peterson
2 lbs
Maxi 77
1 lbs
Sail Area
Em 25 ★
291 sq ft
Comet 770
335 sq ft
Contessa 25 Peterson
350 sq ft
Maxi 77
269 sq ft
Performance
SA / Displacement (higher = more powerful)
Em 25 ★
25.9
Comet 770
23.1
Contessa 25 Peterson
20.3
Maxi 77
16.1
Ballast / Disp (higher = stiffer)
Em 25 ★
Comet 770
43.7 %
Contessa 25 Peterson
45.7 %
Maxi 77
Comfort Ratio (higher = more comfortable offshore)
Em 25 ★
10.5
Comet 770
15.1
Contessa 25 Peterson
16.1
Maxi 77
17.9
Capsize Screening (lower = safer)
Em 25 ★
2.50
Comet 770
2.28
Contessa 25 Peterson
2.27
Maxi 77
2.00
Displacement / Length (lower = lighter)
Em 25 ★
Comet 770
250
Contessa 25 Peterson
221
Maxi 77
Hull Speed
Em 25 ★
5.9 kts
Comet 770
5.8 kts
Contessa 25 Peterson
6.1 kts
Maxi 77
6.3 kts
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