J/34C
Description
The J/34C (1986–1990) is a cruiser-oriented not at all like the J/34 IOR racer, but was designed by a group or racers so it had speed in mind. It has comfortable cabin house, a proper teak interior, and genuine liveaboard amenities. At 34'6" LOA, 12000 lb displacement, and 4,500 lb ballast in a 4.9′ wing keel. A head the racer’s speed and balance while adding 6′3″ headroom, a full U-shaped galley, large enclosed head with shower, a true nav station, and a spacious aft cabin with a double berth—making it one of the fastest “cruiser-racers” of its era that actually works as a weekender or coastal cruiser without feeling like a stripped-out IOR machine. Many owners crossed oceans or raced transatlantic with them; PHRF ratings are typically 90–102. Only 36 J/34C hulls were built by Tillotson-Pearson before the model was discontinued, giving it near-mythical status today
Construction Details
| Designer | Rod Johnstone |
|---|---|
| Builder | J/Boats |
| Length | 34.000 ft |
| LOA | 34.500 ft |
| LWL | 30.000 ft |
| Beam | 11.100 ft |
| Displacement | 12000 lb |
| Ballast | 4500 lb |
| Max Draft | 4.900 ft |
| Year Built | 1986 |
The standard boat dimensions
| i | 45.70 ft |
|---|---|
| j | 13.50 ft |
| p | 40.50 ft |
| e | 15 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 45.70 ft | 13.50 ft | 40.50 ft | 15 ft | - | - | - | - |
Documents
Sails
J/34C - MAINSAIL
| Luff | * 40.5 ft - (12344 mm) |
|---|---|
| Foot | * 15 ft - (4572 mm) |
| Leech | * 42.41 ft - (12927 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 42.69 ft - (13012 mm) |
| Head (inches) | * 6 in - (152 mm) |
| Area | * 312.37 ft² |
| Edit in Calculator |
J/34C - JIBSAIL
| Luff | * 38.1 ft - (11613 mm) |
|---|---|
| Foot | * 17.65 ft - (5380 mm) |
| Leech | * 33.51 ft - (10214 mm) |
| Percentage LP | * 114.96 % |
| Length Perpendicular | * 15.52 ft - (4730 mm) |
| Deck Angle | * 11.96 ° |
| Area | * 295.69 ft² |
| Edit in Calculator |
J/34C - GENOA
| Luff | * 45.24 ft - (13789 mm) |
|---|---|
| Foot | * 21.61 ft - (6587 mm) |
| Leech | * 42.79 ft - (13042 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 20.25 ft - (6172 mm) |
| Deck Angle | * 3.97 ° |
| Area | * 458.06 ft² |
| Edit in Calculator |
J/34C - ASYMMETRICAL
| Luff | 46 ft - (14021 mm) |
|---|---|
| Foot | 23 ft - (7010 mm) |
| Leech | 43 ft - (13106 mm) |
| Perc LP | * 165 % |
| Area | * 794 ft² |
| Edit in Calculator |
J/34C - SPINNAKER
| Stays | * 45.24 ft - (13789 mm) |
|---|---|
| MidGirth | * 24.3 ft - (7407 mm) |
| Foot | * 24.3 ft - (7407 mm) |
| Perc LP | * 180 % |
| Area | * 934 ft² |
| Edit in Calculator |
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. The information on this site is not guaranteed to be accurate. Sailrite offers this content as a service to our community, but takes no responsibility for the reliability of the data provided.
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