Pearson 365 Ketch Rig
Description
The Pearson 365 Ketch is a robust fiberglass cruising ketch renowned for its seaworthiness, spacious accommodations, and ease of handling in varied conditions. Designed as a bluewater-capable family cruiser, the ketch rig divides the sail plan between a large main mast and a smaller mizzen aft of the rudder, reducing weather helm and simplifying sail management for short-handed crews. With a heavy displacement and high ballast ratio, it offers a stable, comfortable motion ideal for long passages, while the shoal-draft fin keel suits coastal exploration. Introduced in 1976 by Pearson Yachts in Portsmouth, Rhode Island, the Pearson 365 was designed by William H. Shaw as a successor to the popular Pearson 35, emphasizing traditional lines with modern construction for offshore reliability. Production ran through 1982, with approximately 100 units built across sloop and ketch configurations (ketch being the more common for cruising). It was tank-tested for optimal stability and featured optional deep (6.5 ft) or shoal (4.5 ft) keels. The model gained acclaim in publications like The Proper Yacht for its balance of performance and liveaboard comfort, influencing later Pearson designs before the yard's closure in 1991.
Construction Details
| Designer | William H. "Bill" Shaw |
|---|---|
| Builder | Pearson Yachts |
| Length | 36.420 ft |
| LOA | 36.420 ft |
| LWL | 30.000 ft |
| Beam | 11.420 ft |
| Displacement | 17700 lb |
| Ballast | 7300 lb |
| Max Draft | 4.500 ft |
| Year Built | 1976 |
The standard boat dimensions
| i | 41 ft |
|---|---|
| j | 15 ft |
| p | 36 ft |
| e | 11.75 ft |
| p2 | 24 ft |
| e2 | 7.83 ft |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 41 ft | 15 ft | 36 ft | 11.75 ft | 24 ft | 7.83 ft | - | - |
Sails
Pearson 365 Ketch Rig - MAINSAIL
| Luff | * 36 ft - (10973 mm) |
|---|---|
| Foot | * 11.75 ft - (3581 mm) |
| Leech | * 37.24 ft - (11351 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 37.48 ft - (11424 mm) |
| Head (inches) | * 5.25 in - (133 mm) |
| Area | * 218.2 ft² |
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Pearson 365 Ketch Rig - JIBSAIL
| Luff | 36 ft - (10973 mm) |
|---|---|
| Foot | 13.25 ft - (4039 mm) |
| Leech | 32.25 ft - (9830 mm) |
| Percentage LP | * 78.8 % |
| Length Perpendicular | * 11.82 ft - (3603 mm) |
| Deck Angle | * 6.8 ° |
| Area | * 212.71 ft² |
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Pearson 365 Ketch Rig - JIBSAIL
| Luff | * 34.93 ft - (10647 mm) |
|---|---|
| Foot | * 20.36 ft - (6206 mm) |
| Leech | * 29.65 ft - (9037 mm) |
| Percentage LP | * 115 % |
| Length Perpendicular | * 17.25 ft - (5258 mm) |
| Deck Angle | * 11.99 ° |
| Area | * 301.28 ft² |
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Pearson 365 Ketch Rig - JIBSAIL
| Luff | 36 ft - (10973 mm) |
|---|---|
| Foot | 15.83 ft - (4825 mm) |
| Leech | 31 ft - (9449 mm) |
| Percentage LP | * 90.53 % |
| Length Perpendicular | * 13.58 ft - (4139 mm) |
| Deck Angle | * 10.82 ° |
| Area | * 244.46 ft² |
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Pearson 365 Ketch Rig - GENOA
| Luff | 40.5 ft - (12344 mm) |
|---|---|
| Foot | 20 ft - (6096 mm) |
| Leech | 36.75 ft - (11201 mm) |
| Percentage LP | * 120.67 % |
| Length Perpendicular | * 18.1 ft - (5517 mm) |
| Deck Angle | * 5.1 ° |
| Area | * 366.46 ft² |
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Pearson 365 Ketch Rig - GENOA
| Luff | 40.5 ft - (12344 mm) |
|---|---|
| Foot | 21.75 ft - (6629 mm) |
| Leech | 36.75 ft - (11201 mm) |
| Percentage LP | * 130.73 % |
| Length Perpendicular | * 19.61 ft - (5977 mm) |
| Deck Angle | * 5.56 ° |
| Area | * 397.02 ft² |
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Pearson 365 Ketch Rig - GENOA
| Luff | 40.5 ft - (12344 mm) |
|---|---|
| Foot | 22.25 ft - (6782 mm) |
| Leech | 37.25 ft - (11354 mm) |
| Percentage LP | * 134.93 % |
| Length Perpendicular | * 20.24 ft - (6169 mm) |
| Deck Angle | * 4.42 ° |
| Area | * 409.95 ft² |
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Pearson 365 Ketch Rig - GENOA
| Luff | * 41.47 ft - (12640 mm) |
|---|---|
| Foot | * 24.65 ft - (7513 mm) |
| Leech | * 38.63 ft - (11774 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 22.5 ft - (6858 mm) |
| Deck Angle | * 4.01 ° |
| Area | * 466.53 ft² |
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Pearson 365 Ketch Rig - ASYMMETRICAL
| Luff | 42 ft - (12802 mm) |
|---|---|
| Foot | 25 ft - (7620 mm) |
| Leech | 39 ft - (11887 mm) |
| Perc LP | * 165 % |
| Area | * 788 ft² |
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Pearson 365 Ketch Rig - MIZZEN
| Luff | * 24 ft - (7315 mm) |
|---|---|
| Foot | * 7.83 ft - (2387 mm) |
| Leech-AftHdBd | * 24.74 ft - (7541 mm) |
| Tack Ang | * 87.97 ° |
| Diag (clew/head) | * 24.98 ft - (7614 mm) |
| Head (inches) | * 3.5 in - (89 mm) |
| Area (no Roach) | * 95.96 ft² |
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Pearson 365 Ketch Rig - STORMTRYSAIL
| Luff | * 13.31 ft - (4057 mm) |
|---|---|
| Foot | * 12.24 ft - (3731 mm) |
| Leech | * 11.09 ft - (3380 mm) |
| Length Perp | * 11.09 ft - (3380 mm) |
| Tack Angle | * -25 ° |
| Area | * 64 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.