Boat Overview
Type
Maker
Hull type
Hull Material
Fiberglass
Category
Boat length (LOA)
10.52 m
Specs
Main
| Maker | J Boats |
| Maker website | https://www.jboats.com |
| Model | J/105 Shoal draft |
| First built hull | 1991 |
| Version | Shoal draft |
| Boat type | Sail |
| Category | Racer Boats |
| Hull type | Monohull |
| Hull material | Fiberglass |
General
| Top speed | 11.72 kmh |
| Mast height | 15.36 m |
| Length overall | 10.52 m |
| Length at waterline | 9.02 m |
| Beam overall | 3.35 m |
| Draft maximum | 1.74 m |
| Displacement | 3,514.88 kg |
| Ballast weight | 1,549.92 kg |
| Ballast type | Lead |
| Helm | 1 wheel |
| Rudder | 1 spade rudder |
| Cockpit | Closed aft cockpit |
Designer
| Naval architect | |
| Name/Studio | Rod Johnstone |
| Website | http://www.jboats.com/ |
Rig & Sails
| Mast | 50.4 |
| Spars | Mast and boom in Aluminum |
| Standing rigging | Single-strand (ROD) |
| Number of spreaders | 2 |
| Spreaders angle | Swept-back |
| Upwind sail area | 53.61 sq.m |
| Downwind sail area | 121.24 sq.m |
Engine
| Engine A | |
| Engine B | |
| Power | 20 HP |
| Type | inboard |
Storage
Performance & Ratios
Detail
| Sail Area to Displacement (SA/D) | 0.06 |
| Upwind SA to Displacement | 23.58 |
| Downwind SA to Displacement | 53.34 |
| Hull Displacement Speed | 0.06 |
| Displacement to Length (D/L) | 7.29 |
| Ballast to Displacement (B/D) | 0.44 |
| Capsize Screening Formula (CSF) | 2.23 |