J/111
Dimensions
| Hull type | Monohull |
| LOA | 36.50 ft (11.13 m) |
| LWL | 32.70 ft (9.97 m) |
| Beam | 10.80 ft (3.29 m) |
| Draft | 7.20 ft (2.19 m) |
| Displacement | 9,300 lbs (4,218 kg) |
| Ballast | 3,515 lbs (1,594 kg) |
| Sail area (total) | 663 sq ft (61.6 m²) |
| Sail area (spinnaker) | 1,410 sq ft (131.0 m²) |
| Rig type | sloop |
| Keel type | fin_with_bulb |
| Rudder type | Spade |
| Rudder material | GRP / E-glass fiberglass |
| Rudder shaft | Carbon fiber |
| Fuel capacity | 13 gal |
| Water capacity | 26 gal |
| Designer | Alan Johnstone |
Construction
Sources
Dimensions/displacement/sail area (100% SA) per jboats.com J/111 tech specs. Hull is balsa-core/biaxial E-glass, vacuum (SCRIMP) infused with vinylester outer layers per J/Boats and Wikipedia. Mast is auto-claved carbon fiber, standard. Some secondary sources quote a larger 'working sail' figure (~751 sqft) that appears to include a bigger genoa than the 100% foretriangle convention used here; used jboats.com's 663 sqft 100% figure for consistency with sailboatdata convention. Verified 2026-07-09. [Rudder/tankage/electrical update, 2026-07-16]: Rudder: balanced spade, E-glass blade on a custom carbon-fiber rudder shaft, JP-3 self-aligning bearings, per jboats.com's own J/111 tech specs. Fuel 13gal (with baffles/inspection port), water 26gal. No holding-tank or electrical-system data found.