J/124
Description
LWL 36.20 Beam 11.33 Standard Draft 7.00 Standard Ballast (cast lead w/antimony) 5,000 Displacement 12, ISP 54.70
Construction Details
| Designer | Rod Johnstone |
|---|---|
| Length | 40.700 ft |
| LOA | 40.700 ft |
| LWL | 36.200 ft |
| Beam | 11.330 ft |
| Displacement | 12600 lb |
| Max Draft | 6.900 ft |
The standard boat dimensions
| i | 49 ft |
|---|---|
| j | 14 ft |
| p | 48.40 ft |
| e | 17 ft |
| p2 | - |
| e2 | - |
| I | J | P | E | P2 | E2 |
|---|---|---|---|---|---|
| 49 ft | 14 ft | 48.40 ft | 17 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 | * 48.4 ft - (14752 mm) |
| Foot | * 17 ft - (5182 mm) |
| Leech | * 50.46 ft - (15380 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 50.74 ft - (15466 mm) |
| Head (inches) | * 6 in - (152 mm) |
| Area | * 421.63 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | * 40.77 ft - (12427 mm) |
| Foot | * 18.23 ft - (5557 mm) |
| Leech | * 36.02 ft - (10979 mm) |
| Percentage LP | * 115 % |
| Length Perpendicular | * 16.1 ft - (4907 mm) |
| Deck Angle | * 12.02 ° |
| Area | * 328.22 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | 48 ft - (14630 mm) |
| Foot | 15 ft - (4572 mm) |
| Leech | 45 ft - (13716 mm) |
| Percentage LP | * 100.36 % |
| Length Perpendicular | * 14.05 ft - (4282 mm) |
| Deck Angle | * 4.54 ° |
| Area | * 337.23 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | * 48.41 ft - (14755 mm) |
| Foot | * 22.34 ft - (6809 mm) |
| Leech | * 45.88 ft - (13984 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 21 ft - (6401 mm) |
| Deck Angle | * 3.99 ° |
| Area | * 508.32 ft² |
| Sail Type | ASYMMETRICAL |
|---|---|
| Luff | 50 ft - (15240 mm) |
| Foot | 25 ft - (7620 mm) |
| Leech | 45 ft - (13716 mm) |
| Perc LP | * 165 % |
| Area | * 938 ft² |
| Sail Type | SPINNAKER |
|---|---|
| Stays | * 48.41 ft - (14755 mm) |
| MidGirth | * 25.2 ft - (7681 mm) |
| Foot | * 25.2 ft - (7681 mm) |
| Perc LP | * 180 % |
| Area | * 1037 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.