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Sailboat Specifications

Kettenburg 50

Masthead Sloop · Fin Keel

Designed by Paul Kettenberg · Built by Kettenburg Yachts (Usa) · First built 1960

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LOA 50.00 ft  ·  Beam 13.50 ft  ·  Displacement 29,000.00 lb  ·  Sail Area 988.00 ft²  ·  Masthead Sloop  ·  Fin Keel
About the Kettenburg 50 Sailboat

Built between 1960 and 1967 by the renowned Kettenburg Yachts of San Diego, this elegant 50-footer represents the pinnacle of West Coast yacht design from the golden age of wooden boat construction. Designer Paul Kettenberg created just 22 of these sophisticated cruising yachts, making them highly sought-after classics among serious sailors. With her traditional wooden construction and masthead sloop rig, the Kettenburg 50 embodies the craftsmanship that made the builder legendary. Her moderate displacement of 29,000 pounds and substantial ballast-to-displacement ratio provide excellent stability for extended coastal cruising and offshore passages. The fin keel configuration offers good pointing ability while maintaining reasonable draft for harbor access. Her comfort ratio of 35.76 indicates a motion that favors seaworthiness over speed, making long passages more pleasant for crew. The capsize screening formula of 1.76 reflects her blue-water capabilities, while the generous sail area provides adequate power in light conditions. These yachts were built during Kettenburg's heyday when the yard was producing some of California's finest pleasure craft, and surviving examples are prized for their solid construction, classic lines, and proven offshore performance.

Dimensions & Specifications
LOA (Length Overall) 50.00 ft / 15.24 m
LWL (Waterline Length) 34.50 ft / 10.52 m
Beam 13.50 ft / 4.11 m
Max Draft 6.80 ft / 2.07 m
Displacement 29,000.00 lb / 13,154 kg
Ballast 9,000.00 lb / 4,082 kg
Ballast Type Lead
Sail Area (Reported) 988.00 ft² / 91.79 m²
Design & Construction
Hull Type Fin Keel
Rigging Type Masthead Sloop
Construction Wood
Designer Paul Kettenberg
Builder Kettenburg Yachts (USA)
First Built 1960
Last Built 1967
Number Built 22
Associations Kettenburg Boats & Owners Association
Related Sailboats Columbia 50 · Swan 50 Ss · Cc 50 · Calkins 50 · Santa Cruz 50
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Frequently Asked Questions

What is the Kettenburg 50's sail area to displacement ratio?

The Kettenburg 50 has a Sail Area to Displacement ratio (SA/D) of 16.82. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Kettenburg 50's comfort ratio?

The Kettenburg 50 has a Ted Brewer Comfort Ratio of 35.76. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Kettenburg 50 safe for offshore sailing?

The Kettenburg 50 has a Capsize Screening Formula value of 1.76. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Kettenburg 50?

The theoretical hull speed of the Kettenburg 50 is 7.87 kn knots, calculated from its waterline length.

How much does a Kettenburg 50 weigh?

The Kettenburg 50 has a displacement of 29,000.00 lb and a length overall (LOA) of 50.00 ft.

Who designed the Kettenburg 50?

The Kettenburg 50 was designed by Paul Kettenberg, first built in 1960.