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Sailboat Specifications

Seidelmann 37

Masthead Sloop · Fin W/Spade Rudder

Designed by Bob Seidelmann · Built by Seidelmann Yachts (Usa) · First built 1980

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LOA 36.83 ft  ·  Beam 12.00 ft  ·  Displacement 12,000.00 lb  ·  Sail Area 643.00 ft²  ·  Masthead Sloop  ·  Fin W/Spade Rudder
About the Seidelmann 37 Sailboat

Launched in 1980, this 37-footer from Bob Seidelmann represents a well-balanced approach to coastal cruising and club racing. The design combines moderate proportions with thoughtful details that made it popular among sailors seeking versatility without extreme compromises. With its fin keel and spade rudder configuration, the Seidelmann 37 offers responsive handling and decent pointing ability, while the masthead sloop rig provides straightforward sail handling for shorthanded crews. The boat's 12-foot beam creates generous interior volume relative to its 36.83-foot overall length, making it comfortable for extended coastal passages or weekend getaways. Built by Seidelmann Yachts in the United States using fiberglass construction, these boats gained a reputation for solid build quality during their production run. The design strikes a practical balance between performance and comfort, with enough sail area (643 square feet) to move well in light air, yet stable enough for confident sailing in moderate conditions. The substantial ballast-to-displacement ratio provides reassuring stability, while the moderate draft allows access to more harbors than deeper-keeled designs. This combination of characteristics makes the Seidelmann 37 well-suited for coastal cruising, weekend sailing, and casual club racing, appealing to sailors who appreciate traditional sailing qualities in a manageable package.

Dimensions & Specifications
LOA (Length Overall) 36.83 ft / 11.23 m
LWL (Waterline Length) 29.50 ft / 8.99 m
Beam 12.00 ft / 3.66 m
Max Draft 5.92 ft / 1.80 m
Displacement 12,000.00 lb / 5,443 kg
Ballast 5,900.00 lb / 2,676 kg
Sail Area (Reported) 643.00 ft² / 59.74 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Masthead Sloop
Construction FG
Designer Bob Seidelmann
Builder Seidelmann Yachts (USA)
First Built 1980
Related Sailboats Catalina 37 · Pearson 37 · J/37 · X 372 · Tayana 37
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Engine & Accommodations
Engine Make Yanmar
Engine Type Diesel
Horsepower 24
Fuel Capacity 18 gals / 68 L
Water Capacity 70 gals / 265 L
Frequently Asked Questions

What is the Seidelmann 37's sail area to displacement ratio?

The Seidelmann 37 has a Sail Area to Displacement ratio (SA/D) of 19.7. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Seidelmann 37's comfort ratio?

The Seidelmann 37 has a Ted Brewer Comfort Ratio of 21.38. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Seidelmann 37 safe for offshore sailing?

The Seidelmann 37 has a Capsize Screening Formula value of 2.1. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Seidelmann 37?

The theoretical hull speed of the Seidelmann 37 is 7.28 kn knots, calculated from its waterline length.

How much does a Seidelmann 37 weigh?

The Seidelmann 37 has a displacement of 12,000.00 lb and a length overall (LOA) of 36.83 ft.

Who designed the Seidelmann 37?

The Seidelmann 37 was designed by Bob Seidelmann, first built in 1980.