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Boat Overview
Type
Maker
Hull type
Hull Material
Fiberglass
Category
Boat length (LOA)
12.19 m
Specs
Main
Name | Value |
---|---|
Maker | J Boats |
Maker website | https://www.jboats.com |
Model | J/121 |
First built hull | 2017 |
Boat type | Sail |
Category | Cruiser Boats |
Hull type | Monohull |
Hull material | Fiberglass |
General
Name | Value |
---|---|
Top speed | 12.89 kmh |
Length overall | 12.19 m |
Length at waterline | 10.7 m |
Beam overall | 3.78 m |
Draft maximum | 2.16 m |
Displacement | 5,199.98 kg |
Ballast type | Cast iron fin with lead bulb |
Helm | 2 wheels |
Rudder | 1 spade rudder |
Cockpit | Open aft cockpit |
Designer
Name | Value |
---|---|
Naval architect | |
Name/Studio | Alan Johnstone |
Website | http://www.jboats.com/ |
Rig & Sails
Name | Value |
---|---|
Spars | Mast and boom in Carbon fiber |
Standing rigging | Single-strand (ROD) discontinuous |
Number of spreaders | 2 |
Spreaders angle | Swept-back |
Upwind sail area | 90.02 sq.m |
Downwind sail area | 200.02 sq.m |
Engine
Name | Value |
---|---|
Engine A | |
Power | 29 HP |
Type | Inboard engine ; Diesel |
Engine B |
Storage
Name | Value |
---|---|
No data |
Performance & Ratios
Detail
Name | Value |
---|---|
Sail Area to Displacement (SA/D) | 0.08 |
Upwind SA to Displacement | 30.5 |
Downwind SA to Displacement | 67.78 |
Hull Displacement Speed | 0.08 |
Displacement to Length (D/L) | 7.94 |
Capsize Screening Formula (CSF) | 2.2 |