Cal 39 Mk Iii
Description
Launched in 1983 and produced through 1989, the Cal 39 Mk III further refined the design for cruising comfort and performance, with production continuing until 1989. It maintained Lapworth’s signature balance of speed and livability, though specific production numbers are less documented.
Construction Details
| Designer | C. William Lapworth |
|---|---|
| Length | 39.000 ft |
| LOA | 39.000 ft |
| LWL | 32.080 ft |
| Beam | 12.000 ft |
| Displacement | 19000 lb |
| Max Draft | 6.750 ft |
The standard boat dimensions
| i | 50 ft |
|---|---|
| j | 16.67 ft |
| p | 44 ft |
| e | 13.75 ft |
| p2 | 18 ft |
| e2 | 6.38 ft |
| I | J | P | E | P2 | E2 |
|---|---|---|---|---|---|
| 50 ft | 16.67 ft | 44 ft | 13.75 ft | 18 ft | 6.38 ft |
Sails
| Sail Type | MAINSAIL |
|---|---|
| Luff | * 44 ft - (13411 mm) |
| Foot | * 13.75 ft - (4191 mm) |
| Leech | * 45.37 ft - (13829 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 45.64 ft - (13911 mm) |
| Head (inches) | * 6 in - (152 mm) |
| Area | * 311.89 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | 44.5 ft - (13564 mm) |
| Foot | 21.25 ft - (6477 mm) |
| Leech | 38.5 ft - (11735 mm) |
| Percentage LP | * 110.26 % |
| Length Perpendicular | * 18.38 ft - (5602 mm) |
| Deck Angle | * 11.7 ° |
| Area | * 408.9 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | * 50.08 ft - (15264 mm) |
| Foot | * 27.11 ft - (8263 mm) |
| Leech | * 46.95 ft - (14310 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 25.05 ft - (7635 mm) |
| Deck Angle | * 4.02 ° |
| Area | * 627.21 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | 49.5 ft - (15088 mm) |
| Foot | 24.33 ft - (7416 mm) |
| Leech | 46 ft - (14021 mm) |
| Percentage LP | * 134.73 % |
| Length Perpendicular | * 22.46 ft - (6846 mm) |
| Deck Angle | * 4.18 ° |
| Area | * 555.87 ft² |
| Sail Type | ASYMMETRICAL |
|---|---|
| Luff | 52 ft - (15850 mm) |
| Foot | 28 ft - (8534 mm) |
| Leech | 49 ft - (14935 mm) |
| Perc LP | * 165 % |
| Area | * 1092 ft² |
| Sail Type | STORMJIB |
|---|---|
| Luff | 26 ft - (7925 mm) |
| Foot | 12.75 ft - (3886 mm) |
| Leech | 20 ft - (6096 mm) |
| Perc LP | * 57.35 % |
| Length Perp | * 9.56 ft - (2914 mm) |
| Deck Angle | * 22.97 ° |
| Area | * 124.31 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. 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.