BoatsOntario Yachts 28

Ontario Yachts 28

Masthead Sloop · Fin keel, spade rudder · 1978–1985

A masthead sloop from former C&C designer Henry Adriaanse, blending late-seventies performance with a shoal-friendly draft

Designed by Henry Adriaanse.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin w/spade Rudder

Is it for you?

Character

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

LivelySea-kindly

Her heavy displacement on a beamy beam gives 20 — a moderate, middle-of-the-road motion.

Comfort ratio 20
CoastalBluewater

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

Capsize screening 2.11
LightHeavy

285 — heavy for her waterline, built to carry stores and ride steadily.

Displacement / length 285
EasygoingPowered-up

17.9 — moderate power for her weight; steady, all-round performance.

Sail area / displacement 17.9
TenderStiff

43% of her weight is ballast — stiff, standing up well to her sails.

Ballast 43%

A balanced, easily-driven cruiser — comfortable and forgiving for coastal work.

  • Draws less than ~82% of boats her size on file

Compared with 2228 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
42.6%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
17.9
Displacement / length
285.1
Comfort ratio
20.4
Capsize screening
2.11
Hull speed
6.3 kn
Pounds / inch immersion
786
Hull
Hull type
Fin w/spade rudder
Construction
Fiberglass
Ballast type
Lead
Production
Years built
1978–1985
Units built
45
Designer
Henry Adriaanse
Builder
Ontario Yachts

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.

Cascade Yachts 278.23 mSame hull family0.5 m shorterA masthead sloop with a fin keel and spade rudder, designed by Robert A. Smith for balanced coastal cruising
Islander Yachts 288.51 mSame hull family0.2 m shorterA Robert Perry-designed masthead sloop with over 400 built, favored by the designer himself for her balanced performance
Ranger Yachts 29 (Mull)8.71 mSame hull familyNear-identical lengthA 1970s masthead sloop with a skeg-hung rudder, offering a balanced 1.98 capsize screening for coastal cruising
San Juan 288.74 mSame hull familyNear-identical lengthA 1977 masthead sloop with a 50% ballast ratio and fin keel, designed for balanced performance in a compact 28-foot hull
Dufour Arpege 309.14 mSame hull family0.4 m longerA record-breaking production of over 1500 units, this MORC-compliant racer-cruiser defined a new standard for the 30-foot class
Bristol Yachts 288.53 mSame hull family0.2 m shorterAn IOR Half Ton racer with reduced stern overhang, serving as the performance-oriented predecessor to the Bristol 29.9

The family

Related models

The designs closest to hers — usually the rest of the builder's range, sometimes the same hull sold under another name.

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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