J Boats Tillotson Pearson J/105

BoatsJ Boats Tillotson Pearson J/105

See her sail

The J Boats Tillotson Pearson J/105, on the water

The fleet's own footage — the truest look at how she really moves.

Footage from Practical Sailor

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

Comfort ratio 16

CoastalBluewater

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

Capsize screening 2.23

LightHeavy

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

Displacement / length 135

EasygoingPowered-up

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

Sail area / displacement 23.6

TenderStiff

44% of her weight is ballast — stiff, standing up well to her sails.

Ballast 44%

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

Draws more than ~79% of boats her size on file

Compared with 2977 boats of the same type within a quarter of her length.

What the fleet has seen

The J Boats Tillotson Pearson J/105, as the fleet has seen it

Derived from the videos the fleet has analysed of this model. ▶ marks open the moment aboard.

The J Boats Tillotson Pearson J/105 is a fractional sloop designed by Rodney S. Johnstone, built by J Boats Tillotson Pearson since 1995. It measures 10.5 meters LOA with a 3.4-meter beam and a 2.0-meter draft, displacing 3515 kg. The J/105 features a fin keel with a bulb and a spade rudder. Peter Gustafsson, known for his "Mr.1:05 Blur" sailing blog, has campaigned J Boats in international offshore regattas, including the J/109 and J/111, noting that boats small enough to be trucked offer logistical advantages for international racing.16:32

The living fleet

Sailed by the fleet

Where the fleet has filmed this boat.

Seen once across one channel of the fleet.

Basemap © Wikimedia Commons · CC BY-SA 4.0

The record

Full specifications

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

Dimensions

Weights

Ballast / displacement

43.9%

Rig & sail area

Rig

Fractional Sloop

Ratios

SA / displacement

23.6

Displacement / length

134.8

Comfort ratio

15.8

Capsize screening

2.23

Hull speed

7.3 kn

Pounds / inch immersion

1159

Hull

Hull type

Fin w/bulb & spade rudder

Construction

Fiberglass

Production

Years built

First built 1995

Designer

Rodney S. Johnstone, Rod Johnstone

Builder

J Boats Tillotson Pearson

Boats like this, on the water

More boats like her, on the water

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.

X-Yachts X-3510.61 mSame hull familyNear-identical lengthA 10.6-metre racer with a 25.18 sail area-to-displacement ratio, built for high-speed, competitive one-design sailing

Eneste jentebåt i Race to the Arctic2:32 from SEILmagasinet

X-362 Sport10.70 mSame hull family0.2 m longerA performance-oriented fractional sloop with a 2.03-metre draft and a high 21.06 sail area-to-displacement ratio

Sailing under a low bridge2:24 from SEILmagasinet

J Boats Tillotson Pearson J/10910.74 mSame hull family0.2 m longerA 10.74-metre fractional sloop offering a shoal draft keel option and powered by a reliable Volvo D1-30 diesel engine

GGR 2026 - SITraN Challenge Prologue — 2026-08-17 12:00-18:004:08:10 from Golden Globe Race Official

Beneteau First 3510.72 mSame hull family0.2 m longerAn IOR 3/4 ton racer with a masthead rig, built for offshore speed and later marketed in the US as the R/C 35

Øyvind and Morten Knudsen on the Doublehanded European Championship in Finland3:12 from SEILmagasinet

Tartan Marine 34-210.49 mSame hull familyNear-identical lengthA Sparkman & Stephens masthead sloop featuring an extended stern and refined interior based on the Tartan 33R

Teak and Holly Sole Repair The RIGHT Way! Sailboat DIY Projects0:45 from Practical Sailor

X-Yachts X-3410.36 mSame hull family0.2 m shorterA Niels Jeppesen-designed fractional sloop balancing performance and comfort with a stiff, bulb-keeled hull

Sailing Insights: Sigmund Hertzberg on the Massive Success of Race to the Arctic3:10 from SEILmagasinet

The family

Boats like this

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

J Boats Tillotson Pearson J/125A lean, ultra-light racer with a 2.41m draft and a 55% ballast ratio built for extreme speed in light to heavy air J Boats Tillotson Pearson J/110A short-run 1990s cruiser-racer featuring a balanced 1.8m draft and a 37% ballast ratio for stable, spirited sailing J Boats Tillotson Pearson J/145A 14.66-metre fractional sloop with a high 26.26 sail area-to-displacement ratio, built for rapid offshore passage-making J Boats Tillotson Pearson J/130A 13-metre performance cruiser featuring a deep 2.59m bulb keel and a high-aspect fractional rig for rapid passages J Boats Tillotson Pearson J/80A 1992 fractional sloop with a high 26.59 sail area-to-displacement ratio, engineered for rapid, agile performance

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