J/30
Description
LWL 25.00' Beam 11.18' Draft 5.25' Displacement 7,000 lbs. Keel (lead) 2,100 lbs.
Construction Details
| Designer | Rod Johnstone |
|---|---|
| Length | 29.830 ft |
| LOA | 29.830 ft |
| LWL | 25.000 ft |
| Beam | 11.180 ft |
| Displacement | 7000 lb |
| Max Draft | 5.250 ft |
The standard boat dimensions
| i | 34.19 ft |
|---|---|
| j | 11.50 ft |
| p | 38 ft |
| e | 13 ft |
| p2 | - |
| e2 | - |
| I | J | P | E | P2 | E2 |
|---|---|---|---|---|---|
| 34.19 ft | 11.50 ft | 38 ft | 13 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 | 38 ft - (11582 mm) |
| Foot | 13 ft - (3962 mm) |
| Leech | * 39.46 ft - (12027 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 39.73 ft - (12110 mm) |
| Head (inches) | * 6 in - (152 mm) |
| Area | * 255.18 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | 32.67 ft - (9958 mm) |
| Foot | 13.25 ft - (4039 mm) |
| Leech | 29.5 ft - (8992 mm) |
| Percentage LP | * 104 % |
| Length Perpendicular | * 11.96 ft - (3645 mm) |
| Deck Angle | * 6.9 ° |
| Area | * 195.36 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | 32.75 ft - (9982 mm) |
| Foot | * 15.36 ft - (4682 mm) |
| Leech | * 28.22 ft - (8601 mm) |
| Percentage LP | * 114.96 % |
| Length Perpendicular | * 13.22 ft - (4029 mm) |
| Deck Angle | * 12.01 ° |
| Area | * 216.5 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | 33 ft - (10058 mm) |
| Foot | 13.75 ft - (4191 mm) |
| Leech | 30 ft - (9144 mm) |
| Percentage LP | * 108.7 % |
| Length Perpendicular | * 12.5 ft - (3810 mm) |
| Deck Angle | * 6.03 ° |
| Area | * 206.25 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | 33.25 ft - (10135 mm) |
| Foot | 17.33 ft - (5282 mm) |
| Leech | 31.25 ft - (9525 mm) |
| Percentage LP | * 139.83 % |
| Length Perpendicular | * 16.08 ft - (4901 mm) |
| Deck Angle | * 3.28 ° |
| Area | * 267.37 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | 35 ft - (10668 mm) |
| Foot | * 18.68 ft - (5694 mm) |
| Leech | * 32.74 ft - (9979 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 17.25 ft - (5258 mm) |
| Deck Angle | * 3.99 ° |
| Area | * 301.85 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | 35.17 ft - (10720 mm) |
| Foot | 20.33 ft - (6197 mm) |
| Leech | 33 ft - (10058 mm) |
| Percentage LP | * 162.61 % |
| Length Perpendicular | * 18.7 ft - (5700 mm) |
| Deck Angle | * 4.52 ° |
| Area | * 328.82 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | 33.25 ft - (10135 mm) |
| Foot | 18.67 ft - (5691 mm) |
| Leech | 31.083 ft - (9474 mm) |
| Percentage LP | * 149.3 % |
| Length Perpendicular | * 17.17 ft - (5233 mm) |
| Deck Angle | * 4.55 ° |
| Area | * 285.41 ft² |
| Sail Type | DRIFTER |
|---|---|
| Luff | 34.5 ft - (10516 mm) |
| Foot | 20 ft - (6096 mm) |
| Leech | 30 ft - (9144 mm) |
| Perc LP | * 150.61 % |
| Length Perp | * 17.32 ft - (5279 mm) |
| Deck Angle | * 11.42 ° |
| Area | * 298.74 ft² |
| Sail Type | SPINNAKER |
|---|---|
| Stays | 34.5 ft - (10516 mm) |
| MidGirth | 22.5 ft - (6858 mm) |
| Foot | 22 ft - (6706 mm) |
| Perc LP | * 180 % |
| Area | * 645 ft² |
| Sail Type | STORMJIB |
|---|---|
| Luff | 17.75 ft - (5410 mm) |
| Foot | 8.5 ft - (2591 mm) |
| Leech | 14 ft - (4267 mm) |
| Perc LP | * 57.13 % |
| Length Perp | * 6.57 ft - (2003 mm) |
| Deck Angle | * 20.76 ° |
| Area | * 58.34 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.