J/105 Specifications
Archived page (captured 2015). Model details, prices and dates may be out of date; check the manufacturer for current information.
J-105
J/105 Specifications
Updated: January 9, 2007
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Lloyd's approved, aircraft grade AL600 epoxy coated CK57(6 lbs./cu.ft.) Baltek end-grained balsa laminate
construction using biaxial glass fabrics and SCRIMP
molding technology. An Interplastic vinylester resin barrier
coat allows a ten-year hull warranty against blisters.
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White (other colors optional) gel coat hull with single(1.50" to 3.00") tapered bootstripe.
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Large sit-in cockpit with 6.5' seats with backrests,suitable for cockpit cushions.
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One lazarette storage locker and two cockpit seat storagelockers w/flush spring loaded latches.
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Swimming and boarding platform sculptured into aft faceof full height transom with integral ladder.
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Cockpit coamings 2.5" high over sidedecks to channelwater aft.
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Molded companionway slide-in seahood w/dodgerboss/instrument pod.
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ORC size molded-in foredeck toe-rails.•
Stainless steel handrails on cabin trunk.•
GRP molded main structural bulkhead, bonded fore & afton hull and deck as support for shroud chainplates with
single opening to forepeak.
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Fore & aft and transverse keel support beams SCRIMPmolded to hull during initial hull infusion to avoid
secondary bonds.
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Fabricated aluminum mast step with transverse beamsfastened to main bulkhead.
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Lead & antimony fixed 6.5' draft, fin keel with bulb boltedto a deep molded stub. (5.5' shoal draft option)
Mechanical & Steering
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Yanmar 3YM20 20 hp, 3 cylinder, diesel engine with 50amp alternator and two-blade 15" Martec folding prop with
#2 Martec hub.
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Yanmar engine instrument panel in cockpit with acryliccover.
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Uflex engine throttle control with neutral safety switch.•
12-gallon alloy fuel tank with baffles and inspection/cleanout port.
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Balanced spade rudder constructed using "E" glass andlarge diameter shaft mounted in rudder bearings.
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Curved laminated wood tiller with Spinlock hiking handle.•
Thurston companionway dodger with side curtainseasy storage. (Dodger is not required for class racing and
may be deleted for credit).
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Harken Unit-1 headsail furler•
Two Lewmar 44AST, 2 speed primary winches with 44:1power ratio.
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Two Lewmar 30AST, 2 speed halyard (& secondary)winches aft on cabin trunk.
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Double sheave deck organizers (P&S) recessed in dodgerspray shield molding.
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Two lock-in Harken winch handles (8" & 10").•
Two PVC winch handle holders•
Aluminum mast collar.•
4 Schaefer 32-16 mast mounted turning blocks•
Two double Lewmar rope clutches aft on the cabin top.Port is main halyard and jib halyard. Starboard is for
cunningham/reef and spinnaker halyard.
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Two Schaefer 08-91 jib sheet blocks on a 3 foot 40-741.25" x 3/16" clear anodized "T" track with 34 mm hole
spacing and aft end stops.
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One Harken 238 camcleat for headsail furler•
One Spinlock side mounted rope clutch for spinnaker tackline.
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One Harken 2600 block for end of bow sprit.•
Harken mid-sized traveler track recessed in cockpit seatwith Harken "windward sheeting", self-tacking traveler car
with 4:1 system using end stops, and 2 Schaefer 300-31
cheek blocks mounted at end of track (top flush with seat).
Control lines pass through Harken 166 swivel bullet blocks
mounted with 097 springs on 281 eyestraps outboard of
traveler.
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6:1 mainsheet system using a Harken 2600 single and1559 double on separate boom bales and a 1559 fiddle on
the windward sheeting traveler car 1636/1637 with Coarse
adjustment sheet tail leads to a center-mounted heavy
duty 144 swivel base with camcleat on 195 riser and
Hexacat #170 single ratchet (without integral cam)
mounted under a 24:1 fine tune system achieved by
adding 4:1 tackle using 2621 Fiddle with Hexaratchet &
Becket and 053 Fiddle attached to mainsheet end.
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Custom double-rail stainless bow pulpit and dual cornerstern rails with transom gate.
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Low profile mounted roller furling drum system onstemhead with control line aft to port side of cabin trunk
where tail can be used on primary winch.
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Tapered lifeline stanchions with heavy duty deck plates.•
Four 4-bolt mooring cleats.•
Double Harken 1973 foot blocks to lead spinnaker and jibsheets behind raised dodger to any of 4 winches.
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Harken cams for lazy spin sheets mounted just aft ofprimary winches.
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Bow chocks port and starboard.•
Two heavy duty "U" bolts aft for two 1959 spinnaker sheetblocks.
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Lewmar 20x20 articulated foredeck hatch.•
Lewmar 10x10 vent hatch in head.•
Two 3530 Bomar 5x30 bronze tinted fixed ports in sides ofcabin trunk and two fixed recessed bronze tinted ports in
head area.
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Lightweight, cored, low-profile companionway slidinghatch and acrylic offshore dropboard with inside/outside
opening hasp.
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Cockpit operated Henderson bilge pump.•
Three 12"x 20" polypropylene mesh line bags.•
Custom SS chainplates, stemhead and backstay tang.•
Main Cunningham/Reef 2600 block on reef hook forsingle line reefing system.
Electrical
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One 90 amp deep-cycle battery.•
Guest battery switch.•
Electrical panel w/circuit breakers.•
Navigation & steaming lights.•
All chainplates with lightning grounds.•
Six swiveling halogen reading lights.•
One fluorescent light in head.•
Seahood pre-wired for instruments with 6 wire 22 gaugecable to nav station
January 9, 2007
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Tapered 6061 T6 aluminum, fractional-rig mast withdouble airfoil spreaders, plus boom in Awlgrip off white.
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Below-decks mast ventilation holes.•
Navtec rod rigging and Ronstan calibrated turnbuckles.•
Custom 4.25" diameter, carbon fiber, retractable J/Spritwith 1:2 under-deck Harken launching system using pole
control line from dead-end hole in the forward bulkhead
outboard of sprit; through two Harken thru-deck big
bullets in the butt of the sprit; to a Harken 2600 secured
to an 073 padeye thru-bolted to forward bulkhead taping
inboard of the sprit; led to a bullseye thru-decks mounted
in the main bulkhead and aft face of cabin trunk, exiting
to be cleated on a 150 cam cleat.
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Automatic sprit retraction system using 3/8" red shockcord attached to butt of sprit, then passing through a 2601
block fixed to an 073 padeye on the hanging locker
bulkhead, reversing forward through a bullseye fairlead on
the sprit to an 2600 swivel block fixed to an 073 padeye
under the sprit opening on the forward bulkhead, back
through the bullseye to the becket of the 023 block on the
hanging locker bulkhead.
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Hall Rigging running rigging package w/Aracom T Main &Jib Halyards, XLS jib, main & spin sheets & spin halyard.
Also includes reef line, cunningham, pole control, tack
line, traveler control lines and main fine tune. Hall
Rigging options include Equip-lite main halyard and
outhaul shackles.
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Sailtech -10 integral hydraulic backstay adjuster with 9.5"throw for -6 rod backstay.
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Hall Quick Vang with integral cleating.•
Main boom with #1 reef stopper to port and #2 reef sheaveon starboard side to double as cunningham with Schaefer
76-46 hook and Harken 001 block.
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6:1 internal mainsail outhaul on boom.•
Off-white Formica low-maintenance bulkheads, andlightweight bin panels with gray vinyl trim, cold molded
teak cap moldings.
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Teak and holly style synthetic high-wear cabin sole withepoxy sealed end grain.
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Storage bins outboard of settee berths.•
Nav station with flip-up lid to access charter storage, andoutboard shelf and nav panel to house instruments.
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Galley unit with polished stainless galley sink with freshwater foot pump and 5 gallon portable water tank with
thru-hull drain.
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Forward of the main bulkhead is a changing area,hanging locker and Raritan PH-2 marine head with 12 gal
polyethylene holding tank or "Y" valve for direct offshore
discharge.
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Holding tank Overboard discharge manual pump.•
Forward of the head area is a lightweight bulkhead withcolor coordinated acrylic canvas privacy curtain and Vberth
with storage under.
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Choice of Sunbrella acrylic fabrics for V berth and maincabin settee cushions. Optional cockpit cushions double as
settee backrests below.
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Vinyl liner on cabin overhead and hull ceilings.•
12x18 mirror in head.•
Rugged 54 qt. top opening, portable icebox undercompanionway ladder.
J/105 Options
Graphic Options
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Two Tone Deck.•
1/2" Cove Stripe with "J" Insignia.Custom Wheel Package:
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Edson Diamond Series 48" White Aluminum Wheel withNatural Leather Grip; Ritchie 5" Binnacle Compass with
Light; Custom GRP Molded Pedestal with SS Guard;
Aluminum Emergency Tiller; White Vinyl Afterdeck &
Sidedeck Cushions at Wheel.
Comfort Group Package:
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Bomar Bronze Tinted Main Cabin Opening Ports; DualPurpose Sunbrella 3" Acrylic Cockpit/Settee-Backrest
Cushions with Light Color (Stone or Linen) on One Side to
Match Non-Skid; (4) Custom Acrylic Covered AC Hose
Lifeline Covers for Helmsman to Match Dodger Color;
Mainsail Cover to Match Dodger with J/105 Logo.
Systems Group Package:
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Automatic Electric Bilge Pump with check valve and PanelSwitch for Manual Operation; Sink in Vanity Counter of
Forward Head With Foot Pump and drain into Head Bowl.;
20 Gallon Fresh Water Tank Under Starboard Berth with
Deck Fill; Origo 2000CB 1-Burner; Non-Pressurized
Alcohol Stove with Cutting Board; Nav and Galley storage
drawers.
Other Single Options
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110 Volt Shorepower w/50 cord, 2 outlets, ProMarinerzinc saver
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Genoa Tracks (use same lead blocks as jib)•
Additional 90 Amp Battery•
Shoal Bulb Keel with 5.5' Draft.•
Shower Attachment in Head (requires Systems Group)•
Ports on Aft Face of Cabin House (2).•
Stainless Grab Rails in Main Cabin•
Racing mainsheet system (fine tune with swivel basemounted fwd of traveler).
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Teak cockpit table with storage bag.•
Alternate class-legal traveler system with Harken #1625car, #1515 controls with 4:1 purchase led to #150 cams on
either side of cockpit.
NOTICE
Specifications are effective on hull #665 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.