Bostrom 31 MK II
Description
The Bostrom 31 MK II is a mid-sized cruiser. She combines good sailing performance with comfortable accommodations, Her generous sail plan delivers excellent light-air performance. A capable coastal cruiser with the ability to handle longer passages comfortably.
Construction Details
| Designer | Unknown |
|---|---|
| Length | 31.000 ft |
| LOA | 30.610 ft |
| LWL | 25.980 ft |
| Beam | 9.060 ft |
| Displacement | 7275 lb |
| Max Draft | 5.910 ft |
The standard boat dimensions
| i | 37.40 ft |
|---|---|
| j | 11.98 ft |
| p | 31.82 ft |
| e | 9.19 ft |
| p2 | - |
| e2 | - |
| I | J | P | E | P2 | E2 |
|---|---|---|---|---|---|
| 37.40 ft | 11.98 ft | 31.82 ft | 9.19 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 | MAINSAIL |
|---|---|
| Luff | * 31.82 ft - (9699 mm) |
| Foot | * 9.19 ft - (2801 mm) |
| Leech-AftHdBd | * 32.63 ft - (9946 mm) |
| Tack Ang | * 88 ° |
| Diag (clew/head) | * 32.81 ft - (10000 mm) |
| Head (inches) | * 4 in |
| Area (no Roach) | * 150.71 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | * 37.31 ft - (11372 mm) |
| Foot | * 19.35 ft - (5898 mm) |
| Leech | * 35.08 ft - (10692 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 17.97 ft - (5477 mm) |
| Deck Angle | * 4.02 ° |
| Area | * 335.2 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | * 31.42 ft - (9577 mm) |
| Foot | * 15.87 ft - (4837 mm) |
| Leech | * 27.28 ft - (8315 mm) |
| Percentage LP | * 115.03 % |
| Length Perpendicular | * 13.78 ft - (4200 mm) |
| Deck Angle | * 11.99 ° |
| Area | * 216.46 ft² |
| Sail Type | ASYMMETRICAL |
|---|---|
| Luff | * 37.31 ft - (11372 mm) |
| Foot | * 19.77 ft - (6026 mm) |
| Leech | * 34.33 ft - (10464 mm) |
| Perc LP | * 165 |
| Area | * 553 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | 36.5 ft - (11125 mm) |
| Foot | 16.75 ft - (5105 mm) |
| Leech | 34 ft - (10363 mm) |
| Percentage LP | * 129.72 % |
| Length Perpendicular | * 15.54 ft - (4737 mm) |
| Deck Angle | * 4.18 ° |
| Area | * 283.55 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.