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Sailboat Specifications

Udell

Fractional Sloop · Fin Keel

Designed by Knud Reimers · Built by Kungsörs Boatyard · First built 1955

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LOA 36.25 ft  ·  Beam 6.42 ft  ·  Displacement 4,600.00 lb  ·  Sail Area 235.00 ft²  ·  Fractional Sloop  ·  Fin Keel
About the Udell Sailboat

Designed by renowned Swedish naval architect Knud Reimers in 1955, this elegant 36-foot sailboat represents classic Scandinavian craftsmanship and thoughtful proportions. Built exclusively by Kungsörs Boatyard, only twelve examples of this distinctive design were ever constructed, making it a rare find in today's market. The Udell's traditional wood construction and fractional sloop rig reflect the sophisticated design principles that made Reimers famous throughout Northern Europe. With a displacement of 4,600 pounds and substantial ballast ratio, this boat offers reassuring stability for coastal cruising and longer passages. The fin keel configuration provides good pointing ability while maintaining reasonable draft for gunkholing. At 36.25 feet overall with a 27.25-foot waterline, the design emphasizes seaworthiness over pure speed, though the hull is capable of reaching its theoretical hull speed of 7 knots in favorable conditions. The modest beam of 6.42 feet creates a sleek profile that cuts through waves efficiently, while the comfort ratio of 19.93 suggests a motion that experienced sailors will find predictable and manageable. This boat suits sailors seeking a well-balanced coastal cruiser with offshore capability, particularly those who appreciate traditional construction methods and timeless Scandinavian design aesthetics.

Dimensions & Specifications
LOA (Length Overall) 36.25 ft / 11.05 m
LWL (Waterline Length) 27.25 ft / 8.31 m
Beam 6.42 ft / 1.96 m
Max Draft 4.50 ft / 1.37 m
Displacement 4,600.00 lb / 2,087 kg
Ballast 2,400.00 lb / 1,089 kg
Sail Area (Reported) 235.00 ft² / 21.83 m²
Design & Construction
Hull Type Fin Keel
Rigging Type Fractional Sloop
Construction Wood
Designer Knud Reimers
Builder Kungsörs Boatyard
First Built 1955
Number Built 12
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Frequently Asked Questions

What is the Udell's sail area to displacement ratio?

The Udell has a Sail Area to Displacement ratio (SA/D) of 13.63. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Udell's comfort ratio?

The Udell has a Ted Brewer Comfort Ratio of 19.93. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Udell safe for offshore sailing?

The Udell has a Capsize Screening Formula value of 1.55. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Udell?

The theoretical hull speed of the Udell is 7.00 kn knots, calculated from its waterline length.

How much does a Udell weigh?

The Udell has a displacement of 4,600.00 lb and a length overall (LOA) of 36.25 ft.

Who designed the Udell?

The Udell was designed by Knud Reimers, first built in 1955.