ISLANDER 21
Description
1950 lbs. Disp. 1000 lbs. Ballast 18' LWL 7' Beam 3'4" Draft
Construction Details
| Designer | William Lapworth |
|---|---|
| Length | 20.830 ft |
| LOA | 20.820 ft |
| LWL | 18.000 ft |
| Beam | 7.830 ft |
| Displacement | 1950 lb |
| Max Draft | 3.330 ft |
The standard boat dimensions
| i | 26.58 ft |
|---|---|
| j | 7.66 ft |
| p | 22.25 ft |
| e | 10.67 ft |
| p2 | - |
| e2 | - |
| I | J | P | E | P2 | E2 |
|---|---|---|---|---|---|
| 26.58 ft | 7.66 ft | 22.25 ft | 10.67 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 | SPINNAKER |
|---|---|
| Luff | * 26.28 ft - (8010 mm) |
| MidGirth | * 13.79 ft - (4203 mm) |
| Foot | * 13.79 ft - (4203 mm) |
| Perc LP | * 180 |
| Area | * 308 ft² |
| Sail Type | ASYMMETRICAL |
|---|---|
| Luff | * 26.28 ft - (8010 mm) |
| Foot | * 12.64 ft - (3853 mm) |
| Leech | * 24.18 ft - (7370 mm) |
| Perc LP | * 165 |
| Area | * 249 ft² |
| Sail Type | MAINSAIL |
|---|---|
| Luff | * 22.25 ft - (6782 mm) |
| Foot | * 10.67 ft - (3252 mm) |
| Leech-AftHdBd | * 24.12 ft - (7352 mm) |
| Tack Ang | * 88 ° |
| Diag (clew/head) | * 24.34 ft - (7419 mm) |
| Head (inches) | * 4.5 in |
| Area (no Roach) | * 122.31 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | 22.13 ft - (6745 mm) |
| Foot | * 9.98 ft - (3042 mm) |
| Leech | * 19.54 ft - (5956 mm) |
| Percentage LP | * 115.01 % |
| Length Perpendicular | * 8.81 ft - (2685 mm) |
| Deck Angle | * 11.95 ° |
| Area | * 97.48 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | 26.28 ft - (8010 mm) |
| Foot | * 12.23 ft - (3728 mm) |
| Leech | * 24.9 ft - (7590 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 11.49 ft - (3502 mm) |
| Deck Angle | * 3.96 ° |
| Area | * 150.98 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.