1991 J Boats J/105 Standard

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1991 J Boats J/105 Standard

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1991 J Boats J/105 Standard

Boat Overview

Overview

Specs
Main
General
Designer
Rig & Sails
Engine
Storage
Performance & Ratios
Detail

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Specs

Main
MakerJ Boats
Maker websitehttps://www.jboats.com
ModelJ/105 Standard
First built hull1991
VersionStandard
Boat typeSail
CategoryRacer Boats
Hull typeMonohull
Hull materialFiberglass
General
Top speed11.72 kmh
Mast height15.36 m
Length overall10.52 m
Length at waterline9.02 m
Beam overall3.35 m
Draft maximum2.01 m
Displacement3,515 kg
Ballast weight1,550 kg
Ballast typeLead
Helm1 wheel
Rudder1 spade rudder
CockpitClosed aft cockpit
Designer
Naval architect
Name/StudioRod Johnstone
Websitehttp://www.jboats.com/
Rig & Sails
Mast50.4
SparsMast and boom in Aluminum
Standing riggingSingle-strand (ROD)
Number of spreaders2
Spreaders angleSwept-back
Upwind sail area53.61 sq.m
Downwind sail area121.24 sq.m
Engine
Engine B
Power20 HP
TypeInboard
Storage
Fuel tank A45.05 liter
Holding tank A45.05 liter

Performance & Ratios

Detail
Sail Area to Displacement (SA/D) 23.58
Upwind SA to Displacement23.58
Downwind SA to Displacement53.32
Hull Displacement Speed 7.29
Displacement to Length (D/L) 133.39
Ballast to Displacement (B/D) 0.44
Capsize Screening Formula (CSF) 2.23