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Sailboat Specifications

Carmen 31

Masthead Sloop · Long Keel

Designed by Ron Swanson · Built by Swanson Brothers (Aus) · First built 1961

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LOA 31.00 ft  ·  Beam 9.50 ft  ·  Displacement 8,700.00 lb  ·  Sail Area 432  ·  Masthead Sloop  ·  Long Keel
About the Carmen 31 Sailboat

With limited technical specifications available, the Carmen 31 represents a moderately-sized sailboat that falls into the popular 30-foot range favored by many sailors seeking a balance between manageability and capability. This length category typically appeals to sailors transitioning from smaller boats or those seeking a vessel suitable for both weekend coastal adventures and extended cruising. Based on its size classification, the Carmen 31 would likely serve well for coastal cruising and intermediate offshore passages. Boats in this size range generally offer enough interior volume for comfortable short-term living aboard while remaining manageable for a small crew or even single-handed sailing in moderate conditions. The 31-foot length suggests this vessel could accommodate basic cruising amenities below deck, including sleeping quarters, a compact galley, and essential navigation equipment. Without detailed specifications available, potential buyers should carefully inspect individual boats to assess build quality, sail inventory, and overall condition. For sailors considering the Carmen 31, focus on evaluating the specific boat's maintenance history, rigging condition, and how well it matches your intended sailing goals. This size boat typically represents a sweet spot for those seeking adventure without the complexity of larger vessels.

Dimensions & Specifications
LOA (Length Overall) 31.00 ft / 9.45 m
LWL (Waterline Length) 24.50 ft / 7.47 m
Beam 9.50 ft / 2.90 m
Max Draft 5.00 ft / 1.52 m
Displacement 8,700.00 lb / 3,946 kg
Sail Area (Reported) 432
Design & Construction
Hull Type Long Keel
Rigging Type Masthead Sloop
Construction Wood
Designer Ron Swanson
Builder Swanson Brothers (AUS)
First Built 1961
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Frequently Asked Questions

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

The Carmen 31 has a Sail Area to Displacement ratio (SA/D) of 16.39. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Carmen 31's comfort ratio?

The Carmen 31 has a Ted Brewer Comfort Ratio of 25.34. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Carmen 31 safe for offshore sailing?

The Carmen 31 has a Capsize Screening Formula value of 1.85. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Carmen 31?

The theoretical hull speed of the Carmen 31 is 6.63 knots, calculated from its waterline length.

How much does a Carmen 31 weigh?

The Carmen 31 has a displacement of 8,700.00 lb and a length overall (LOA) of 31.00 ft.

Who designed the Carmen 31?

The Carmen 31 was designed by Ron Swanson, first built in 1961.