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J100 Standard is a Dayboat built by J/Boats and designed by Rod Johnstone. Her first hull was built in 2004 and a Keel stepped mast mast configuration.

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J100 STANDARD Sailboat Specifications​


Builder(s)J Boats Tillotson Pearson
Designer(s)Rod Johnstone
BrandJ Boats
CountryUnited States
Hull TypeMonohull
First Hull Built2004
Last Hull BuiltDiscontinued
AppendagesKeel L-shaped keel (with bulb)
HelmSingle tiller
RudderSingle spade rudder
CockpitClosed aft cockpit
Ballast TypeLead
Rigging TypeSloop Marconi fractional
Mast LayoutKeel stepped mast
Number of Cabin(s)1
Number of Berth(s)4
Number of Head(s)1
Freshwater Tank Capacity lt/gal19 L / 5 gal
Ballast Ratio0.38


Hull Length10 m / 32.10 ft
Waterline Length (LWL)8.84 m / 29 ft
Beam (width)2.81 m / 9.2 ft
Draft1.75 m / 5.8 ft
Light Displacement (MLC) 2950 kg / 6504 lb
Ballast Weight1130 kg / 2491 lb


Critical Hull Speed7.22 knots
Displacement-Length Ratio (DLR)121
Ballast Ratio0.38
Upwind Sail Area to Displacement21.59 m²/T / 232 ft²/T

Above Deck

Mast LayoutKeel stepped mast
Mast Height from DWL14.04 m / 46.1 ft
Rotating SparsNo
Number of Levels of Spreaders2
Spreaders AngleSwept-back
Spars ConstructionCarbon fiber mast and aluminum boom
Standing RiggingSingle-strand (ROD)
Upwind Sail Area44.4 m² / 478 ft²
I38.6 ft * 11.73 m
J11.6 ft * 3.51 m
P38 ft * 11.58 m
E13.6 ft * 4.11 m

Engine Room

Engine(s)1 inboard engine
Engine(s) Power15 HP
Fuel typeDiesel
Fuel Tank Capacity40 L / 10.6 gal

Below Deck

Maximum Headroom4.10 ft * 1.45 m
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