BoatsMontego 25

Montego 25

Masthead Sloop · Fin w/transom Hung Rudder · 1980–1985

A Johannes Helsen-designed masthead sloop with a fin keel and balanced performance for coastal cruising

Designed by Johannes "Jopie" Helsen, built by Universal Marine.

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 17 — a quick, lively motion that feels every wave.

Comfort ratio 17
CoastalBluewater

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

Capsize screening 2.20
LightHeavy

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

Displacement / length 233
EasygoingPowered-up

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

Sail area / displacement 18.0
TenderStiff

40% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 40%

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

The record

Full specifications

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

Dimensions
Weights
Ballast / displacement
40.0%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
18.0
Displacement / length
233.2
Comfort ratio
16.9
Capsize screening
2.20
Hull speed
6.1 kn
Pounds / inch immersion
665
Hull
Hull type
Fin w/transom hung rudder
Construction
Fiberglass
Ballast type
Iron
Production
Years built
1980–1985
Units built
80
Designer
Johannes "Jopie" Helsen
Builder
Universal 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.

Cal 257.62 mSame hull familyNear-identical lengthA flush-deck masthead sloop featuring a pop-top companionway that became one of the most popular models in the fleet
Martinique 257.70 mSame hull familyNear-identical lengthA Brazilian-built masthead sloop with a 44% ballast ratio, offering a stiff and stable platform for coastal cruising
Puma 277.95 mSame hull family0.3 m longerA Ron Holland-designed masthead sloop with a fin keel and spade rudder, built for performance-oriented coastal cruising
Jeanneau Sun Odyssey 267.47 mSame hull family0.2 m shorterA Philippe Briand-designed fractional sloop built for coastal cruising with a stiff, stable hull form
Maxi Yachts 777.70 mSame hull familyNear-identical lengthThe most popular model in the builder's history, offering both inboard and outboard engine options for versatile cruising
Jeanneau Sun Odyssey 24.27.30 mSame hull family0.3 m shorterA Jacques Fauroux-designed fractional sloop built for coastal cruising with a stable fin-and-bulb keel

The family

Boats like this

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

Keep looking

Nothing filmed of this one yet

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