WESTERLY 31 KETCH / Longbow / Berwick
Description
LWL 25 Beam 9.5 Draft 4.5 (Fin Keel on Longbow) 3.58 (twin keel on Berwick) Disp. 4264 kg Ballast 1905 kg Produced from 1972-1980
The standard boat dimensions
| i | 36 ft |
|---|---|
| j | 12.67 ft |
| p | 30 ft |
| e | 10 ft |
| p2 | 18 ft |
| e2 | 6 ft |
| I | J | P | E | P2 | E2 |
|---|---|---|---|---|---|
| 36 ft | 12.67 ft | 30 ft | 10 ft | 18 ft | 6 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 | ASYMMETRICAL |
|---|---|
| Luff | 37 ft - (11278 mm) |
| Foot | 21 ft - (6401 mm) |
| Leech | 35 ft - (10668 mm) |
| Perc LP | * 165 |
| Area | * 583 ft² |
| Sail Type | SPINNAKER |
|---|---|
| Luff | * 36.26 ft - (11052 mm) |
| MidGirth | * 22.81 ft - (6952 mm) |
| Foot | * 22.81 ft - (6952 mm) |
| Perc LP | * 180 |
| Area | * 703 ft² |
| Sail Type | MIZZEN |
|---|---|
| Luff | * 18 ft - (5486 mm) |
| Foot | * 6 ft - (1829 mm) |
| Leech-AftHdBd | * 18.53 ft - (5648 mm) |
| Tack Ang | * 87.96 ° |
| Diag (clew/head) | * 18.77 ft - (5721 mm) |
| Head (inches) | * 3.5 in |
| Area (no Roach) | * 55.52 ft² |
| Sail Type | MAINSAIL |
|---|---|
| Luff | * 30 ft - (9144 mm) |
| Foot | * 10 ft - (3048 mm) |
| Leech-AftHdBd | * 31.08 ft - (9473 mm) |
| Tack Ang | * 88 ° |
| Diag (clew/head) | * 31.29 ft - (9537 mm) |
| Head (inches) | * 4.5 in |
| Area (no Roach) | * 154.75 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | * 36.26 ft - (11052 mm) |
| Foot | * 20.7 ft - (6309 mm) |
| Leech | * 33.87 ft - (10324 mm) |
| Percentage LP | * 149.96 % |
| Length Perpendicular | * 19 ft - (5791 mm) |
| Deck Angle | * 4.01 ° |
| Area | * 344.43 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | * 30.53 ft - (9306 mm) |
| Foot | * 17.07 ft - (5203 mm) |
| Leech | * 26.08 ft - (7949 mm) |
| Percentage LP | * 115 % |
| Length Perpendicular | * 14.57 ft - (4441 mm) |
| Deck Angle | * 12.03 ° |
| Area | * 222.37 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | 35 ft - (10668 mm) |
| Foot | 18 ft - (5486 mm) |
| Leech | 32.25 ft - (9830 mm) |
| Percentage LP | * 129.99 % |
| Length Perpendicular | * 16.47 ft - (5020 mm) |
| Deck Angle | * 4.43 ° |
| Area | * 288.16 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.