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Sailboat Specifications

Sea Eagle 31

Masthead Sloop · Fin With Rudder On Skeg

Designed by Stan Huntingford · Built by C&L Marine Corp.(Taiwan) · First built 1979

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LOA 31.00 ft  ·  Beam 10.33 ft  ·  Displacement 12,500.00 lb  ·  Sail Area 488.00 ft²  ·  Masthead Sloop  ·  Fin With Rudder On Skeg
About the Sea Eagle 31 Sailboat

Built between 1979 and 1982 by C&L Marine Corp. in Taiwan, this Stan Huntingford design represents a well-balanced approach to coastal cruising and club racing from the early 1980s. The masthead sloop configuration and moderate dimensions create a versatile platform that appeals to sailors seeking both performance and comfort in a manageable size. The Sea Eagle 31's fin keel with rudder on skeg arrangement provides good directional stability while maintaining reasonable maneuverability in close quarters. Its fiberglass hull with Airex core construction and balsa deck core reflects the advanced composite techniques becoming popular during its production era, offering strength while keeping weight reasonable. With a displacement of 12,500 pounds and ballast of 5,125 pounds, the design strikes a solid balance between stability and performance. The boat's comfort ratio of 30.3 suggests reasonably quick motion in seaways, while the capsize screening formula of 1.78 indicates good stability characteristics suitable for coastal and near-offshore sailing. The SA/Displacement ratio of 14.55 points to moderate performance potential, making this an appealing choice for weekend coastal cruising with occasional club racing aspirations. The standard 20-horsepower auxiliary provides adequate backup propulsion for its size and displacement.

Dimensions & Specifications
LOA (Length Overall) 31.00 ft / 9.45 m
LWL (Waterline Length) 27.33 ft / 8.33 m
Beam 10.33 ft / 3.15 m
Max Draft 4.75 ft / 1.45 m
Displacement 12,500.00 lb / 5,670 kg
Ballast 5,125.00 lb / 2,325 kg
Sail Area (Reported) 488.00 ft² / 45.34 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG Airex hull/ balsa deck
Designer Stan Huntingford
Builder C&L Marine Corp.(TAIWAN)
First Built 1979
Last Built 1982
Owner Reviews

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Engine & Accommodations
Engine Make Yanmar
Engine Type Diesel
Horsepower 20
Fuel Capacity 35 gals / 132 L
Water Capacity 65 gals / 246 L
Frequently Asked Questions

What is the Sea Eagle 31's sail area to displacement ratio?

The Sea Eagle 31 has a Sail Area to Displacement ratio (SA/D) of 14.55. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Sea Eagle 31's comfort ratio?

The Sea Eagle 31 has a Ted Brewer Comfort Ratio of 30.3. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Sea Eagle 31 safe for offshore sailing?

The Sea Eagle 31 has a Capsize Screening Formula value of 1.78. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Sea Eagle 31?

The theoretical hull speed of the Sea Eagle 31 is 7.01 kn knots, calculated from its waterline length.

How much does a Sea Eagle 31 weigh?

The Sea Eagle 31 has a displacement of 12,500.00 lb and a length overall (LOA) of 31.00 ft.

Who designed the Sea Eagle 31?

The Sea Eagle 31 was designed by Stan Huntingford, first built in 1979.