Westsail 43 Ketch
Description
The Westsail 43 Ketch (also known as the Westsail 43 Aft Cockpit) is an iconic American bluewater cruiser designed by William I.B. "Bill" Crealock (who crafted it as a no-compromise passagemaker with heavy displacement and traditional lines influenced by proven offshore hulls). It was built by Westsail Corporation (USA) starting in 1974–1975, using the same hull molds as the center-cockpit Westsail 42, with production continuing until around 1979 (West sail built ~113 hulls total for the 42/43 series), after which Jomarco produced an additional 6 hulls (total ~119 across the shared hull). The ketch rig (along with cutter and occasional yawl options) was popular for splitting sail area to enhance balance, ease of handling in heavy weather or short-handed conditions, and versatility for long-distance cruising. It earned legendary status for exceptional seaworthiness—proven in numerous circumnavigations and ocean passages—thanks to its ultra-heavy displacement, long keel for excellent tracking and stability, thick hand-laid fiberglass hull, comfortable motion in rough seas, spacious aft-cockpit layout (private aft cabin, saloon, galley, nav station, and berths for 4–6), and robust construction ideal for liveaboard or serious offshore use.
Construction Details
| Designer | WIB Crealock |
|---|---|
| Builder | Westsail Corporation (USA) |
| Length | 42.920 ft |
| LOA | 42.200 ft |
| LWL | 33.330 ft |
| Beam | 13.000 ft |
| Displacement | 32000 lb |
| Ballast | 12000 lb |
| Max Draft | 5.670 ft |
| Year Built | 1974 |
The standard boat dimensions
| i | 50 ft |
|---|---|
| j | 19 ft |
| p | 43.50 ft |
| e | 16.50 ft |
| p2 | 26.25 ft |
| e2 | 10 ft |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 50 ft | 19 ft | 43.50 ft | 16.50 ft | 26.25 ft | 10 ft | - | - |
Documents
Sails
Westsail 43 Ketch - MAINSAIL
| Luff | * 43.5 ft - (13259 mm) |
|---|---|
| Foot | * 16.5 ft - (5029 mm) |
| Leech | * 45.7 ft - (13929 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 45.98 ft - (14015 mm) |
| Head (inches) | * 6 in - (152 mm) |
| Area | * 368.14 ft² |
| Edit in Calculator |
Westsail 43 Ketch - GENOA
| Luff | 49 ft - (14935 mm) |
|---|---|
| Foot | 28.5 ft - (8687 mm) |
| Leech | 44.75 ft - (13640 mm) |
| Percentage LP | * 135.16 % |
| Length Perpendicular | * 25.68 ft - (7827 mm) |
| Deck Angle | * 4.88 ° |
| Area | * 629.24 ft² |
| Edit in Calculator |
Westsail 43 Ketch - DRIFTER
| Luff | * 50.81 ft - (15487 mm) |
|---|---|
| Foot | * 32.85 ft - (10013 mm) |
| Leech | * 44.73 ft - (13634 mm) |
| Perc LP | * 150 % |
| Length Perp | * 28.5 ft - (8687 mm) |
| Deck Angle | * 9.01 ° |
| Area | * 724.05 ft² |
| Edit in Calculator |
Westsail 43 Ketch - DRIFTER
| Luff | 33.5 ft - (10211 mm) |
|---|---|
| Foot | 23.75 ft - (7239 mm) |
| Leech | 25.5 ft - (7772 mm) |
| Perc LP | * 94.89 % |
| Length Perp | * 18.03 ft - (5496 mm) |
| Deck Angle | * 19.82 ° |
| Area | * 301.94 ft² |
| Edit in Calculator |
Westsail 43 Ketch - ASYMMETRICAL
| Luff | 52 ft - (15850 mm) |
|---|---|
| Foot | 33 ft - (10058 mm) |
| Leech | 48.75 ft - (14859 mm) |
| Perc LP | * 165 % |
| Area | * 1287 ft² |
| Edit in Calculator |
Westsail 43 Ketch - ASYMMETRICAL
| Luff | 33.5 ft - (10211 mm) |
|---|---|
| Foot | 23.75 ft - (7239 mm) |
| Leech | 25.5 ft - (7772 mm) |
| Perc LP | * 165 % |
| Area | * 597 ft² |
| Edit in Calculator |
Westsail 43 Ketch - YANKEE
| Luff | 47.5 ft - (14478 mm) |
|---|---|
| Foot | 26.25 ft - (8001 mm) |
| Leech | 33.5 ft - (10211 mm) |
| Percentage LP | * 94.26 % |
| Length Perpendicular | * 17.91 ft - (5459 mm) |
| Deck Angle | * 26.17 ° |
| Area | * 425.38 ft² |
| Edit in Calculator |
Westsail 43 Ketch - STAYSAIL
| Luff | 32.92 ft - (10034 mm) |
|---|---|
| Foot | 12.75 ft - (3886 mm) |
| Leech | 27.92 ft - (8510 mm) |
| Percentage LP | * 106 % |
| Length Perpendicular | * 10.6 ft - (3231 mm) |
| Deck Angle | * 12.93 ° |
| Area | * 174.43 ft² |
| Edit in Calculator |
Westsail 43 Ketch - MIZZEN
| Luff | * 26.25 ft - (8001 mm) |
|---|---|
| Foot | * 10 ft - (3048 mm) |
| Leech-AftHdBd | * 27.5 ft - (8382 mm) |
| Tack Ang | * 88 ° |
| Diag (clew/head) | * 27.76 ft - (8461 mm) |
| Head (inches) | * 4.5 in - (114 mm) |
| Area (no Roach) | * 134.9 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.