Cal 39 MK II
Description
The Cal 39 MK II is an iconic American racer-cruiser sailboat designed by C. William Lapworth, representing a popular evolution of the original Cal 39 with a wider beam for added stability and interior volume. Built by Jensen Marine (Cal Boats) from 1972 to 1978, about 100 hulls were produced. It features a fin keel with spade rudder for agile performance, hand-laid solid fiberglass hull (balsa-cored deck), and a standard masthead sloop rig that's versatile for coastal racing or family cruising. Known for its speed, balance in 10–20 knots, and seaworthiness on short passages, it's a timeless design that holds value well,
Construction Details
| Designer | C. William Lapworth |
|---|---|
| Builder | Jensen Marine (USA) |
| Length | 39.000 ft |
| LOA | 39.000 ft |
| LWL | 32.080 ft |
| Beam | 12.000 ft |
| Displacement | 17000 lb |
| Max Draft | 6.670 ft |
The standard boat dimensions
| i | 50 ft |
|---|---|
| j | 16.67 ft |
| p | 44 ft |
| e | 13.75 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 50 ft | 16.67 ft | 44 ft | 13.75 ft | - | - | - | - |
Sails
Cal 39 MK II - 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 |
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Cal 39 MK II - 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 |
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Cal 39 MK II - GENOA
| Luff | * 50.07 ft - (15261 mm) |
|---|---|
| Foot | * 27.05 ft - (8245 mm) |
| Leech | * 46.95 ft - (14310 mm) |
| Percentage LP | * 149.97 % |
| Length Perpendicular | * 25 ft - (7620 mm) |
| Deck Angle | * 4.01 ° |
| Area | * 625.88 ft² |
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Cal 39 MK II - 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 |
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Cal 39 MK II - ASYMMETRICAL
| Luff | 52 ft - (15850 mm) |
|---|---|
| Foot | 28 ft - (8534 mm) |
| Leech | 49 ft - (14935 mm) |
| Perc LP | * 165 % |
| Area | * 1092 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.