J/100 Specs


Hull & Deck Construction


· Composite hull and deck built with resin infusion molding system using biaxial and unidirectional glass fabrics with Baltek end-grained balsa core.

· 10 year transferable warranty against hull blistering.

· White gel coat hull with single (1.75" to 3.25") tapered bootstripe.

· Large sit-in cockpit with 9.5’ seats having comfortable 13.75” backrests, suitable for cockpit cushions.

· Two cockpit seat storage lockers.

· One lazarette storage locker.

· One foredeck anchor locker with overboard drain.

· Swimming and boarding platform sculpted into aft face of full height transom with integral safety ladder.

· Molded companionway seahood and dodger spray shield bosses.

· White foredeck toe-rails.

· GRP molded main structural bulkhead, bonded to hull and deck as support for shroud chainplates with single opening to head and forepeak.

· Longitudinal and transverse keel support beams and integral mast step.


Keel & Rudder


· Lead & antimony fixed 5.75' draft, fin keel with bulb bolted to a deep molded sump. (4.2’ shoal draft option)

· Balanced hi-aspect spade rudder constructed using "E" glass with stainless rudder post and self-aligning Jefa rudder bearings.

· Curved laminated wood tiller with adjustable tiller extension.


Spars & Rigging


· Tapered carbon fiber mast with double airfoil aluminum spreaders, main, jib, spin halyard and topping lift sheaves, spin/whisker pole track with sliding eye on front of mast, Harken System “A” mainsail luff track; mast finished in Awlgrip off-white.

· G10 fiberglass mast step with fore/aft adjustment slots and SS padeye for through bolt securing of mast to step.

· Mast wedge kit.

· Aluminum boom with provision for 2 reefs, 6:1 internal mainsail outhaul, finished in Awlgrip off-white.

· Continuous rod rigging with turnbuckles.

· Remote panel hydraulic backstay adjuster.

· Rigid boomvang with integral cleating.

· Headsail furler with control leading aft to cockpit.

· Complete running rigging package.


Deck Hardware


· Two 40:1 self-tailing primary winches mounted on cockpit coaming.

· Two 35:1 self tailing secondary winches mounted on cabin trunk.

· Triple sheave deck organizers (P&S).

· Two lock-in winch handles.

· Two PVC winch handle holders.

· Custom stainless mast collar.

· Mast mounted turning blocks

· Halyard & reef line rope clutches on the cabin top.

· One single rope clutch for tack line or jib boom outhaul.

· Cam cleats on cabin top and mounted near primary winches (for lazy spin sheets).

· Two fixed jib tracks each with plunger style jib cars.

· Mainsheet traveler track recessed in cockpit seat with 4:1 traveler control system.

· 6:1/24:1 rough tune/fine tune mainsheet system leading to aluminum bracket on centerline fore and aft of traveler.

· Four SS mooring cleats (2 fwd, 2 aft).

· Foredeck ventilation hatch.

· Two fixed ports in sides of cabin trunk.

· Molded companionway sliding hatch and acrylic offshore dropboard with inside/outside opening hasp

· Cockpit operated bilge pump.

· Two 12"x 20" polypropylene mesh line bags.

· Custom SS chainplates, stemhead and backstay tang.

· Double lifelines with stainless bow pulpit & stern rail.

· Five (5) folding padeyes: one for spinnaker tack attachment on bow, and four attachment points for spinnaker blocks.

· Stainless steel handrails on cabin house.


Auxiliary Power


· 2 cylinder Yanmar 15HP diesel saildrive engine with geared folding prop.

· Engine instrument panel with tachometer, engine hour gauge and water, oil pressure alarms in cockpit with acrylic cover.

· Engine throttle control with neutral safety switch.

· 10-gallon fuel tank with baffles and inspection/clean out port.




· One 95 amp battery.

· 12V DC battery switch.

· 12V DC electrical distribution panel w/ 8 circuit breakers.

· Navigation & steaming lights.

· Bonding system.

· Two swiveling halogen reading lights.

· One dome light in main cabin.

· One fluorescent light in head.

· Automatic electric bilge pump and panel switch for manual operation.




· Off-white laminated paneling with varnished teak trim oval door opening and white door.

· Teak and holly synthetic high-wear cabin sole.

· Two-tone (beige) molded nonskid floor in head area.

· Teak trimmed backrest outboard of each settee berth.

· Marine head with 14 gal holding tank and "Y" valve.

· Molded sink with overboard drain in head.

· Holding tank overboard discharge manual pump.

· Teak trimmed storage bin to starboard of head.

· Choice of acrylic fabrics for settee cushions.

· Vinyl liner on main cabin & head overhead and hull.




· Contrasting Non-Skid Color on deck.

· Varnished teak toe-rail with amidships chocks and scupper drains in lieu of std.

· “Wide-Opening” Lifeline Gate (P&S) from stern rail to first stanchion.

· Adjustable full length genoa tracks in lieu of std.

· Seahood with molded instrument pod in lieu of std.

· V-Berth Package: V-berth platform with two cushions and one swiveling Halogen reading lamp.

· Carbon Bow Sprit Package: retractable carbon fiber bow sprit, sprit bearings, launching tube and retrieval purchase.

· Carbon Whisker/Spin Pole with double bridles, Awlgripped “clear” with a 2:1 downhaul and a topping lift, each led aft to cabin trunk.

· 4.2’ Shoal Draft Keel.

· Freshwater System with 5 gallon water tank, spigot and foot pump in head.

· Thurston companionway dodger with side curtains mounted on splash molding.



Specifications are effective on hull #167 and subject to change prior to delivery due to deletions, additions or revisions in quantities, brand or design at the sole discretion of J/Boats, Inc. Newport, RI


JK3 San Diego

2330 Shelter Island Dr

San Diego, CA 92106


JK3 Los Angeles

4514 Spencer Street

Torrance, CA, US, 90503


JK3 San Francisco

1070 Marina Village Parkway

Alameda, CA 94501


JK3 Seattle

1500 Westlake Ave

Seattle, WA 98109


  • Facebook - Grey Circle
  • Twitter - Grey Circle
  • YouTube - Grey Circle
  • Pinterest - Grey Circle
  • Instagram - Grey Circle

© 2015 JK3 Nautical Enterprises,