BoatsJ J/90

J J/90

Fractional Sloop · Fin w/bulb & Spade Rudder · 1997–1998

A high-performance fractional racer with a 32.34 SA/displacement ratio, built for pure speed over a single model year

Designed by Rodney S. Johnstone & Rod Johnstone.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin w/bulb & 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 light displacement on a narrow beam gives 11 — a quick, lively motion that feels every wave.

Comfort ratio 11
CoastalBluewater

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

Capsize screening 2.29
LightHeavy

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

Displacement / length 75
EasygoingPowered-up

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

Sail area / displacement 32.3
TenderStiff

56% of her weight is ballast — very stiff, carrying full sail in a blow.

Ballast 56%

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

  • Lighter than ~93% of boats her size on file
  • Draws more than ~91% of boats her size on file
  • Narrower than ~82% of boats her size on file

Compared with 2549 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
56.4%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
32.3
Displacement / length
74.8
Comfort ratio
10.5
Capsize screening
2.29
Hull speed
7.0 kn
Pounds / inch immersion
820
Hull
Hull type
Fin w/bulb & spade rudder
Construction
Fiberglass
Ballast type
Lead
Production
Years built
1997–1998
Units built
5
Designer
Rodney S. Johnstone, Rod Johnstone
Builder
J, Boats

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.

Spirit Yachts 30 (McMILLAN)9.15 mSame hull familyNear-identical lengthA lightweight, narrow-beam fractional sloop from Sean McMillan, designed for modern performance and classic aesthetics
Hinterhoeller 309.14 mSame hull familyNear-identical lengthA slender, George Hinterhoeller-designed masthead sloop built for performance and ease of handling since 1969
X-Yachts X-959.24 mSame hull familyNear-identical lengthA Niels Jeppesen-designed IOR half-tonner with a high sail-area-to-displacement ratio and an optional taller rig
Jeanneau Rush 319.13 mSame hull familyNear-identical lengthA Ron Holland-designed IOR half-tonner that served as the official boat for the Tour de France à la Voile
Newport 30-19.14 mSame hull familyNear-identical lengthThe original 1968 production run of this masthead sloop, featuring a fin keel and spade rudder for coastal sailing
Hunter Boats Horizon 309.14 mSame hull familyNear-identical lengthA David Thomas-designed fractional sloop with twin keels, offered in kit form for versatile shoal-water 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.

Keep looking

Nothing filmed of this one yet

Two ways to keep looking — both search what the fleet has actually recorded.

The newsletter

New boats, new stories, from everywhere.

One email from the fleet — boats newly added, videos newly analyzed. No noise.

Report an issue