BoatsNorth Star 500

North Star 500

Masthead Sloop · Fin With Rudder On Skeg · First built 1973

A Sparkman & Stephens quarter-tonner built to the IOR rule, also produced in Finland as the Blue Bird 25

Designed by Sparkman & Stephens.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin With Rudder On Skeg

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

Comfort ratio 16
CoastalBluewater

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

Capsize screening 2.22
LightHeavy

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

Displacement / length 232
EasygoingPowered-up

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

Sail area / displacement 17.6
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
39.8%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
17.6
Displacement / length
231.8
Comfort ratio
16.4
Capsize screening
2.22
Hull speed
6.0 kn
Pounds / inch immersion
651
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Production
Years built
First built 1973
Designer
Sparkman, Stephens
Builder
North Star Yachts Ltd, Hughes Boat Works

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
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
Comet 7707.70 mSame hull familyNear-identical lengthA Jean-Marie Finot-designed IOR quarter-tonner with a high sail-area-to-displacement ratio for spirited club racing
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
Newport 27S8.23 mSame hull family0.6 m longerA 1974 masthead sloop with a 1.3-meter draft, offering a stable fin-keel platform for shoal-water coastal cruising

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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