Sailbird 18
Description
The Sailbird 18 is a pioneering folding trimaran designed by Arthur Berry (though some sources also credit Norman Cross) and built by Aquadyne Boat Company in Virginia from 1974-1978. Approximately 700 units were produced during this period, making it one of the most successful early production trimarans in the United States.
Construction Details
| Designer | Arthur Berry |
|---|---|
| Builder | Aquadyne Corp., Virginia |
| Length | 18.000 ft |
| LOA | 18.000 ft |
| Beam | 11.500 ft |
| Displacement | 400 lb |
| Max Draft | 2.500 ft |
| Min Draft | 0.500 ft |
| Year Built | 1974 |
The standard boat dimensions
| i | 16 ft |
|---|---|
| j | 5 ft |
| p | 20.67 ft |
| e | 9 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 16 ft | 5 ft | 20.67 ft | 9 ft | - | - | - | - |
Blueprints
Sails
Sailbird 18 - MAINSAIL
| Luff | 20.67 ft - (6300 mm) |
|---|---|
| Foot | 9 ft - (2743 mm) |
| Leech | * 22.31 ft - (6800 mm) |
| Tack Angle | * 89.69 ° |
| Diagonal | 22.5 ft - (6858 mm) |
| Head (inches) | * 4 in - (102 mm) |
| Area | * 96.08 ft² |
| Edit in Calculator |
Sailbird 18 - JIBSAIL
| Luff | 14.5 ft - (4420 mm) |
|---|---|
| Foot | 8 ft - (2438 mm) |
| Leech | 13 ft - (3962 mm) |
| Length Perpendicular | 7.13 ft - (2173 mm) |
| Area | * 51.69 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.