BoatsKettenburg Marine PC

Kettenburg Marine PC

Fractional Sloop · Fin Keel · 1929–1959

A long-lived Pacific Coast One-Design fractional sloop commissioned for the San Diego Yacht Club with a slender 2-metre beam

Designed by George W. Kettenburg Jr.

LOA
Beam
Draft (max)
Displacement
Hull type
Fin Keel

Is it for you?

Character

Where this design lands on the numbers a shopper trusts — read straight from her own ratios.

LivelySea-kindly

Her moderate displacement on a narrow beam gives 25 — a moderate, middle-of-the-road motion.

Comfort ratio 25
CoastalBluewater

At 1.56 she sits well under the 2.0 line — a solidly ocean-capable hull for her size.

Capsize screening 1.56
LightHeavy

241 — moderately heavy for her waterline, a balanced cruising weight.

Displacement / length 241
EasygoingPowered-up

21.1 — plenty of sail for her weight; lively and quick to respond.

Sail area / displacement 21.1

Powered-up and quick to accelerate — this one likes to sail.

  • Lighter than ~85% of boats her size on file
  • Draws less than ~81% of boats her size on file
  • Narrower than ~99% of boats her size on file

Compared with 2761 boats of the same type within a quarter of her length.

The record

Full specifications

The complete reference set — tap any figure to switch between metric and imperial.

Dimensions
Weights
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
21.1
Displacement / length
241.0
Comfort ratio
25.4
Capsize screening
1.56
Hull speed
6.1 kn
Pounds / inch immersion
500
Hull
Hull type
Fin Keel
Construction
Mahogany on Oak
Production
Years built
1929–1959
Units built
83
Designer
George W. Kettenburg Jr
Builder
Kettenburg Marine

Boats like this, on the water

Nobody has filmed this one — but these are close.

Comparable boats the fleet has on camera: same type, within a quarter of her length. Open the boat, or watch the video — a timestamp means she only appears in passing.

Spirit 329.48 mSame hull family0.2 m shorterA Jacques De Ridder-designed IOR 23-footer built for nearly two decades as a stiff, masthead-rigged fin-keel sloop
Singlehanding Through Uncharted Atolls on My Grinde 27'2:07from Wind Hippie Sailing
Hunter Marine 319.55 mSame hull familyNear-identical lengthA Cortland Steck design featuring a B&R rig and a fin keel, built for coastal cruising between 1983 and 1987
Inside Our New Sailboat… A Full Walkthrough of Our Home0:10from Sailing Nomadika
Maxi Yachts 959.50 mSame hull family0.2 m shorterA 9.5-metre masthead sloop produced for a decade, featuring a skeg-hung rudder for predictable coastal handling
Maxi 95: The world's largest 31-footerfrom SEILmagasinet
Hunter Marine 339.96 mSame hull family0.3 m longerA 1977 masthead sloop with a 38% ballast ratio, designed for stability and coastal performance
Why is THIS SAILBOAT so CHEAP?!3:08from Practical Sailor
Albin Marine Nova 3310.06 mSame hull family0.4 m longerA Peter Norlin-designed fractional sloop with a high ballast ratio, built in Sweden under various names for nearly two decades
15 years of bucket-list sailing – summarized by "Mr. Blur" Peter Gustafsson2:55from SEILmagasinet
Aphrodite 1019.94 mSame hull family0.2 m longerA 9.9-meter fin-keeler with a 57% ballast ratio, designed by Elvstrom and Kjaerulff for high-speed, stiff sailing
Race to the Arctic: Tough for the fleet's smallest boat0:13from SEILmagasinet

The family

Boats like this

Nearby designs by size, type, and era — worth a look alongside her.

Kettenburg Marine 38A slender, long-ended fractional sloop from Paul Kettenburg, built for classic performance between 1948 and 1959Kettenburg Marine 40A 1959 masthead sloop with a 1.62-metre draft, offering a balanced displacement-to-ballast ratio for coastal cruisingKettenburg Marine 43A 1963 masthead sloop with a fin keel and a heavy displacement-to-length ratio designed for stable, deep-water cruisingKettenburg Marine 41A 1966 masthead sloop with a spade rudder, offering a light displacement-to-length ratio for responsive coastal sailing

Keep looking

Nothing filmed of this one yet

Two ways to keep looking — both search what the fleet has actually recorded.

Search the fleet for boats like thisAsk the fleet about the Kettenburg Marine PC

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