BoatsGib'sea 77

Gib'sea 77

Masthead Sloop · Keel/centreboard · 1979–1984

A Groupe Graal-designed masthead sloop with a high sail-area-to-displacement ratio and a versatile keel-centerboard

Designed by Groupe Graal & Jean-Claude Meyran, built by Gilbert Marine.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Keel/Cbrd.

Is it for you?

Character

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

Shoal draughtDraws 0.87 m, board up where she has one — creeks, sandbars and thin anchorages most keels have to stay out of.
LivelySea-kindly

Her light displacement on a beamy beam gives 14 — a quick, lively motion that feels every wave.

Comfort ratio 14
CoastalBluewater

At 2.33 she sits above the 2.0 line — beamy for her weight, and happiest coastal.

Capsize screening 2.33
LightHeavy

153 — light for her waterline, so she is easily driven and quick to accelerate.

Displacement / length 153
EasygoingPowered-up

24.0 — a lot of sail for her weight; powered-up and eager, a real performer.

Sail area / displacement 24.0
TenderStiff

41% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 41%

Light and lively — happiest day-sailing and coastal-hopping in settled weather.

  • Draws more than ~78% of boats her size on file
  • Beamier than ~81% of boats her size on file

Compared with 594 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
40.8%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
24.0
Displacement / length
152.7
Comfort ratio
13.5
Capsize screening
2.33
Hull speed
6.4 kn
Pounds / inch immersion
743
Hull
Hull type
Keel/Cbrd.
Construction
Fiberglass
Ballast type
Iron
Production
Years built
1979–1984
Units built
224
Designer
Groupe Graal, Jean-Claude Meyran
Builder
Gilbert Marine, Gib'sea, Gibert 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.

Deltania Yachts 267.92 mSame hull familyNear-identical length
Building our house | Styrofoam slab and Galvalume rooffrom MotionMe
Macgregor 26X7.87 mSame hull familyNear-identical lengthA water-ballasted sail-power hybrid designed for versatile coastal cruising and easy trailering
Buying My Dream Boat (2001 MacGregor 26X)0:53from Adventureman Dan
Seascape 277.99 mSame hull familyNear-identical lengthA Sam Manuard-designed performance fractional sloop with a high SA/D ratio and swing keel, now part of the Beneteau First range
Boat for both cruising and racing22:55from SEILmagasinet
Seaward Yachts 26RK8.66 mSame hull family0.7 m longerA fractional sloop with a 1.83m lifting bulb keel, offering deep-water performance in a trailerable 8.66m package
This Boat Did EVERYTHING! (Perfect 6 Day Trip)8:36from Adventureman Dan
Maxus 26 (CB)8.40 mSame hull family0.5 m longerA 2015-launched fractional sloop with a 1.43-metre centerboard draft and a 19.61 sail-area-to-displacement ratio
The UNIQUE Maxus 26 Lifting Keel Trailer Sailorfrom Practical Sailor
Cal Boats 247.43 mSame hull family0.5 m shorterThe inaugural Jensen Marine Cal model, this fractional keel-centerboard sloop was built for shoal-water versatility
Aladino Sails The Pacific Alone.2:08from Sailing Magic Carpet

The family

Boats like this

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

Gib'sea 84A Joubert-Nivelt masthead sloop featuring a skeg-hung rudder, designed for stable coastal cruisingGib'sea 372A Joubert-Nivelt masthead sloop featuring a skeg-mounted rudder for stability and control in a 37-foot cruiserGib'sea 28A masthead sloop with a keel-centerboard configuration, offering a 1.9-metre draft for deep-water stabilityGib'sea 20A lively Joubert-designed masthead sloop with a high sail-area-to-displacement ratio, built for spirited coastal sailingGib'sea 96A Joubert-Nivelt masthead sloop designed for performance, featuring a fin keel and skeg-mounted rudder

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 Gib'sea 77

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