J/120
Description
LWL 35.0 ft Beam 12.0 ft Draft 7.0 ft Optional Draft 5.9 ft Displacement 13,900 lb Ballast 6,000 lb ISP 52.0 ft
Construction Details
| Designer | Rod Johnstone |
|---|---|
| Length | 40.000 ft |
| LOA | 40.000 ft |
| LWL | 34.500 ft |
| Beam | 12.000 ft |
| Displacement | 13900 lb |
| Max Draft | 7.000 ft |
The standard boat dimensions
| i | 50.50 ft |
|---|---|
| j | 14.50 ft |
| p | 46.50 ft |
| e | 17.80 ft |
| p2 | - |
| e2 | - |
| I | J | P | E | P2 | E2 |
|---|---|---|---|---|---|
| 50.50 ft | 14.50 ft | 46.50 ft | 17.80 ft | - | - |
Sails
An asterisk indicates that a computer algorithm was used to determine the dimension based on sailboat rig dimensions (usually the I, J, E, and P)
| Sail Type | MAINSAIL |
|---|---|
| Luff | * 46.5 ft - (14173 mm) |
| Foot | * 17.8 ft - (5425 mm) |
| Leech | * 48.93 ft - (14914 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 49.21 ft - (14999 mm) |
| Head (inches) | * 6 in - (152 mm) |
| Area | * 423.76 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | * 42.03 ft - (12811 mm) |
| Foot | * 18.89 ft - (5758 mm) |
| Leech | * 37.12 ft - (11314 mm) |
| Percentage LP | * 115.03 % |
| Length Perpendicular | * 16.68 ft - (5084 mm) |
| Deck Angle | * 11.98 ° |
| Area | * 350.51 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | * 49.91 ft - (15213 mm) |
| Foot | * 23.15 ft - (7056 mm) |
| Leech | * 47.28 ft - (14411 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 21.75 ft - (6629 mm) |
| Deck Angle | * 4.01 ° |
| Area | * 542.76 ft² |
| Sail Type | SPINNAKER |
|---|---|
| Stays | * 49.91 ft - (15213 mm) |
| MidGirth | * 26.1 ft - (7955 mm) |
| Foot | * 26.1 ft - (7955 mm) |
| Perc LP | * 180 % |
| Area | * 1107 ft² |
Disclaimer. Boats are not all the same -- even when produced in the same factory of the same model. Sailrite does its best to publish accurate dimensions, but we often find it worthwhile to have our customers measure their boats carefully before we produce kits for them. You should take the same precautions, especially when the data is not from Sailrite.