BoatsMamba 36

Mamba 36

Fractional Sloop · Fin keel, spade rudder · First built 1982

A 1982 fractional sloop with a 40% ballast ratio, designed for a balance of speed and stability in coastal waters

Designed by Bernt Andersson.

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 moderate displacement on a narrow beam gives 26 — a moderate, middle-of-the-road motion.

Comfort ratio 26
CoastalBluewater

1.83 — just under the 2.0 offshore line; her beam is modest for her weight.

Capsize screening 1.83
LightHeavy

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

Displacement / length 194
EasygoingPowered-up

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

Sail area / displacement 19.5
TenderStiff

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

Ballast 40%

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
40.2%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
19.5
Displacement / length
194.1
Comfort ratio
25.6
Capsize screening
1.83
Hull speed
7.4 kn
Pounds / inch immersion
1151
Hull
Hull type
Fin w/spade rudder
Construction
Fiberglass
Ballast type
Lead
Production
Years built
First built 1982
Designer
Bernt Andersson
Builder
Mamba Boat AB, BK Marin AB

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.

Tartan Marine 36511.13 mSame hull familyNear-identical lengthLaunched in 2020, this 11-meter cruiser pairs a high 20.56 sail-area-to-displacement ratio with a deep 1.98-meter draft
Beneteau First 36.710.90 mSame hull family0.2 m shorterA Farr-designed racer-cruiser with a 2.2-metre draft and a balanced sail-area-to-displacement ratio for club competition
Beneteau First 34511.00 mSame hull familyNear-identical lengthA 36-foot masthead sloop from the mid-eighties, designed for offshore speed with a stiff 36% ballast ratio
Beneteau First 36s710.90 mSame hull family0.2 m shorterA performance-oriented fractional sloop by Berret-Racoupeau, featuring a bulb keel and an optional taller IMS rig
Catalina Yachts 3611.07 mSame hull familyNear-identical lengthA versatile coastal cruiser offering optional tall rig and wing keel configurations to suit varying water depths
Hallberg-Rassy 3511.13 mSame hull familyNear-identical lengthA shallow-draft fin-keeler with a 1.3-metre draft, built for coastal cruising and ease of access to shoal anchorages

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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