US 21
Description
The US 21 is a small sailboat. With her light displacement hull, she offers spirited performance, featuring variable draft for versatility in different sailing conditions. An ideal choice for weekend cruising, day sailing, or club racing.
Construction Details
| Designer | Unknown |
|---|---|
| Length | 21.000 ft |
| LOA | 21.250 ft |
| LWL | 18.000 ft |
| Beam | 8.000 ft |
| Displacement | 1700 lb |
| Max Draft | 4.580 ft |
| Min Draft | 1.250 ft |
The standard boat dimensions
| i | 26.33 ft |
|---|---|
| j | 7.83 ft |
| p | 26.50 ft |
| e | 9 ft |
| p2 | - |
| e2 | - |
| I | J | P | E | P2 | E2 |
|---|---|---|---|---|---|
| 26.33 ft | 7.83 ft | 26.50 ft | 9 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 | * 26.5 ft - (8077 mm) |
| Foot | * 9 ft - (2743 mm) |
| Leech-AftHdBd | * 27.51 ft - (8385 mm) |
| Tack Ang | * 88 ° |
| Diag (clew/head) | * 27.69 ft - (8440 mm) |
| Head (inches) | * 4 in |
| Area (no Roach) | * 123.05 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | * 26.1 ft - (7955 mm) |
| Foot | * 12.54 ft - (3822 mm) |
| Leech | * 24.67 ft - (7519 mm) |
| Percentage LP | * 149.94 % |
| Length Perpendicular | * 11.74 ft - (3578 mm) |
| Deck Angle | * 4 ° |
| Area | * 153.23 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | * 21.98 ft - (6700 mm) |
| Foot | * 10.24 ft - (3121 mm) |
| Leech | * 19.32 ft - (5889 mm) |
| Percentage LP | * 114.94 % |
| Length Perpendicular | * 9 ft - (2743 mm) |
| Deck Angle | * 11.93 ° |
| Area | * 98.91 ft² |
| Sail Type | SPINNAKER |
|---|---|
| Luff | * 26.1 ft - (7955 mm) |
| MidGirth | * 14.09 ft - (4295 mm) |
| Foot | * 14.09 ft - (4295 mm) |
| Perc LP | * 180 |
| Area | * 313 ft² |
| Sail Type | ASYMMETRICAL |
|---|---|
| Luff | 27 ft - (8230 mm) |
| Foot | 14 ft - (4267 mm) |
| Leech | 24.5 ft - (7468 mm) |
| Perc LP | * 165 |
| Area | * 284 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | 26.25 ft - (8001 mm) |
| Foot | 12.75 ft - (3886 mm) |
| Leech | 25.25 ft - (7696 mm) |
| Percentage LP | * 154.28 % |
| Length Perpendicular | * 12.08 ft - (3682 mm) |
| Deck Angle | * 2.09 ° |
| Area | * 158.56 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.