Cape Dory 30 Ketch
Description
The Cape Dory 30 Ketch is a 30.18 ft (9.20 m) full-keel cruising sailboat designed by Carl Alberg and built by Cape Dory Yachts in East Taunton, Massachusetts, from 1976 to 1986. It is a variant of the Cape Dory 30, featuring a ketch rig with two masts (main and mizzen) for enhanced sail plan flexibility. Approximately 367 Cape Dory 30s were produced across all rig types (sloop, cutter, and ketch), with the ketch being less common. The ketch rig is favored for its ease of handling and suitability for coastal and offshore cruising.
Construction Details
| Designer | Carl Alberg |
|---|---|
| Length | 30.000 ft |
| LOA | 36.130 ft |
| LWL | 27.000 ft |
| Beam | 10.670 ft |
| Displacement | 16100 lb |
| Max Draft | 5.000 ft |
The standard boat dimensions
| i | 33.75 ft |
|---|---|
| j | 12 ft |
| p | 30 ft |
| e | 11 ft |
| p2 | 19 ft |
| e2 | 7 ft |
| I | J | P | E | P2 | E2 |
|---|---|---|---|---|---|
| 33.75 ft | 12 ft | 30 ft | 11 ft | 19 ft | 7 ft |
Blueprints
Sails
| Sail Type | MAINSAIL |
|---|---|
| Luff | 30 ft - (9144 mm) |
| Foot | 11 ft - (3353 mm) |
| Leech-AftHdBd | * 31.17 ft - (9501 mm) |
| Tack Ang | 87 ° |
| Diag (clew/head) | 31.41 ft - (9574 mm) |
| Head (inches) | * 5.25 in |
| Area (no Roach) | * 170.5 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | 31 ft - (9449 mm) |
| Foot | 11.25 ft - (3429 mm) |
| Leech | 26 ft - (7925 mm) |
| Percentage LP | * 75.67 % |
| Length Perpendicular | * 9.08 ft - (2768 mm) |
| Deck Angle | * 16.59 ° |
| Area | * 140.78 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | * 34.03 ft - (10372 mm) |
| Foot | * 19.64 ft - (5986 mm) |
| Leech | * 31.77 ft - (9683 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 18 ft - (5486 mm) |
| Deck Angle | * 3.99 ° |
| Area | * 306.3 ft² |
| Sail Type | DRIFTER |
|---|---|
| Luff | * 34.03 ft - (10372 mm) |
| Foot | * 20.5 ft - (6248 mm) |
| Leech | * 30.18 ft - (9199 mm) |
| Perc LP | * 150 % |
| Length Perp | * 18 ft - (5486 mm) |
| Deck Angle | * 9.01 ° |
| Area | * 306.31 ft² |
| Sail Type | ASYMMETRICAL |
|---|---|
| Luff | * 34.03 ft - (10372 mm) |
| Foot | * 19.8 ft - (6035 mm) |
| Leech | * 31.31 ft - (9543 mm) |
| Perc LP | * 165 % |
| Area | * 505 ft² |
| Sail Type | SPINNAKER |
|---|---|
| Stays | * 34.03 ft - (10372 mm) |
| MidGirth | * 21.6 ft - (6584 mm) |
| Foot | * 21.6 ft - (6584 mm) |
| Perc LP | * 180 % |
| Area | * 625 ft² |
| Sail Type | MIZZEN |
|---|---|
| Luff | * 19 ft - (5791 mm) |
| Foot | * 7 ft - (2134 mm) |
| Leech-AftHdBd | 19.58 ft - (5968 mm) |
| Tack Ang | * 86.04 ° |
| Diag (clew/head) | 19.79 ft - (6032 mm) |
| Head (inches) | * 3.5 in |
| Area (no Roach) | * 68.33 ft² |
| Sail Type | STORMJIB |
|---|---|
| Luff | * 19.7 ft - (6005 mm) |
| Foot | * 9.21 ft - (2807 mm) |
| Leech | * 14.7 ft - (4481 mm) |
| Perc LP | * 54.25 % |
| Length Perp | * 6.51 ft - (1984 mm) |
| Deck Angle | * 25.48 ° |
| Area | * 64.09 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.