2017 J Boats J/121

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2017 J Boats J/121
2017 J Boats J/121
2017 J Boats J/121
2017 J Boats J/121
2017 J Boats J/121
2017 J Boats J/121
2017 J Boats J/121
2017 J Boats J/121

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/121
First built hull2017
Boat typeSail
CategoryCruiser Boats
Hull typeMonohull
Hull materialFiberglass
General
Top speed12.89 kmh
Length overall12.19 m
Length at waterline10.7 m
Beam overall3.78 m
Draft maximum2.16 m
Displacement5,200 kg
Ballast typeCast iron fin with lead bulb
Helm2 wheels
Rudder1 spade rudder
CockpitOpen aft cockpit
Designer
Naval architect
Name/StudioAlan Johnstone
Websitehttp://www.jboats.com/
Rig & Sails
SparsMast and boom in Carbon fiber
Standing riggingSingle-strand (ROD) discontinuous
Number of spreaders2
Spreaders angleSwept-back
Upwind sail area90.02 sq.m
Downwind sail area200.02 sq.m
Engine
Engine B
Power29 HP
TypeInboard
Storage
Fuel tank A99.93 liter
Water tank A99.93 liter
Water heater A45.05 liter

Performance & Ratios

Detail
Sail Area to Displacement (SA/D) 30.49
Upwind SA to Displacement30.49
Downwind SA to Displacement67.75
Hull Displacement Speed 7.94
Displacement to Length (D/L) 118.35
Capsize Screening Formula (CSF) 2.2