BoatsAlden O Class MK II

Alden O Class MK II

Fractional Sloop · Centerboard (Trunk) · First built 1925

A fractional sloop designed in 1925 that remains an active one-design racer on St. Regis Lake

Designed by John G. Alden, built by Graves Yacht Yard.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Centerboard (Trunk)

Is it for you?

Character

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

TrailerableBeam 2.03 m — inside the 2.55 m no-permit tow width across most of Europe, and the 2.59 m US and Canadian limit. About 907 kg of hull, so roughly 1,500 kg on a trailer: check that against your own towing rating.Ramp-launchableAbout 907 kg of hull, with a keel that raises or a draft shallow enough to float off a trailer — she can go back on the trailer at the ramp, not only into the water.Shoal draftDraws 0.29 m, board up where she has one — creeks, sandbars and thin anchorages most keels have to stay out of.
LivelySea-kindly

Her moderate displacement on a beamy beam gives 15 — a quick, lively motion that feels every wave.

Comfort ratio 15
CoastalBluewater

2.12 — right around the 2.0 line, the edge between coastal and offshore.

Capsize screening 2.12
LightHeavy

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

Displacement / length 244
EasygoingPowered-up

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

Sail area / displacement 19.4
TenderStiff

28% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.

Ballast 28%

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

  • Narrower than ~77% of boats her size on file

Compared with 398 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
Ballast / displacement
27.5%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
19.4
Displacement / length
243.5
Comfort ratio
15.2
Capsize screening
2.12
Hull speed
5.3 kn
Pounds / inch immersion
368
Hull
Hull type
Centerboard (Trunk)
Construction
Wood
Production
Years built
First built 1925
Units built
250
Designer
John G. Alden
Builder
Graves Yacht Yard, George L. Chaisson, others

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.

Marshall Marine Corporation Sanderling5.54 mSame hull familyNear-identical lengthA gaff-rigged catboat based on a 1941 design, featuring a shallow-draft keel-centerboard hull for versatile day sailing
Dufour Yachts T66.15 mSame hull family0.6 m longerA lightweight 800kg fractional sloop with a high sail-area-to-displacement ratio for spirited performance in light air
O'day 226.61 mSame hull family1.1 m longerA prolific production success with over 3,000 hulls built, offering a nimble fractional rig for coastal daysailing
Chrysler Marine 226.71 mSame hull family1.2 m longerA 6.7-metre masthead sloop produced as the C-22 and T-22 Sandpiper, featuring a swing keel for shallow-water access
RS Quest4.29 mSame hull family1.3 m shorterA 140kg fractional sloop with a centerboard trunk designed for stable, versatile training and family sailing

Keep looking

Nothing filmed of this one yet

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

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