BoatsMarine Glass Yachts Mg-C27

Marine Glass Yachts Mg-C27

Fractional Sloop · Fin w/transom Hung Rudder · First built 1985

A Rob Humphreys-designed fractional sloop originally built as the Contessa 27, offering a spirited 20.07 SA/displacement ratio

Designed by Rob Humphreys.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin w/transom Hung 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 moderate displacement on a beamy beam gives 18 — a quick, lively motion that feels every wave.

Comfort ratio 18
CoastalBluewater

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

Capsize screening 2.20
LightHeavy

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

Displacement / length 209
EasygoingPowered-up

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

Sail area / displacement 20.1
TenderStiff

33% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.

Ballast 33%

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

The record

Full specifications

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

Dimensions
Weights
Ballast / displacement
33.3%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
20.1
Displacement / length
208.5
Comfort ratio
17.5
Capsize screening
2.20
Hull speed
6.5 kn
Pounds / inch immersion
837
Hull
Hull type
Fin w/transom hung rudder
Construction
Fiberglass
Production
Years built
First built 1985
Designer
Rob Humphreys
Builder
Marine Glass Yachts, Northshore 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.

Jeanneau Aquila 278.70 mSame hull family0.3 m longerA Philippe H. Harle-designed masthead sloop offered in both standard and deep-keel Regatta configurations
Pearson Yachts 27 (Triton 27)8.23 mSame hull familyNear-identical lengthA Doug Peterson-influenced masthead sloop built from US Yachts molds, offering a light-displacement cruiser profile
Maxi Yachts Fenix 8.58.50 mSame hull familyNear-identical lengthA 1980s cruiser with a 1.5-metre bulb keel and spade rudder, designed for a balanced, stable coastal experience
Bristol Yachts 288.53 mSame hull family0.2 m longerAn IOR Half Ton racer with reduced stern overhang, serving as the performance-oriented predecessor to the Bristol 29.9
Newport 27S8.23 mSame hull familyNear-identical lengthA 1974 masthead sloop with a 1.3-meter draft, offering a stable fin-keel platform for shoal-water coastal cruising
Coronado Yachts 278.13 mSame hull family0.2 m shorterA William Tripp Jr. design featuring a masthead sloop rig and fin keel, sharing a near-identical hull with the Columbia 27

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.

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