Cross 10.5 Meter
Description
The Cross 10.5 Meter Trimaran, also referred to as the Norman Cross 35 Trimaran (10.5 meters ~ 34.5 feet), is a rare, plans-only American folding trimaran sailboat designed by multihull pioneer Norman Cross in the early 1980s (plans dated ~1980–1982). Intended for home or professional construction using plywood-epoxy stitch-and-glue or cold-molded methods, an estimated 10–20 units were built, reflecting its niche appeal for DIY sailors. It features folding amas (outriggers) that collapse alongside the main hull via stainless hinges, reducing beam from ~22 ft to ~8 ft for trailering.
The standard boat dimensions
| i | 40 ft |
|---|---|
| j | 14.25 ft |
| p | 35.75 ft |
| e | 13.75 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 40 ft | 14.25 ft | 35.75 ft | 13.75 ft | - | - | - | - |
Blueprints
Sails
Cross 10.5 Meter - MAINSAIL
| Luff | 35.75 ft - (10897 mm) |
|---|---|
| Foot | 13.75 ft - (4191 mm) |
| Leech | * 37.67 ft - (11482 mm) |
| Tack Angle | * 87.99 ° |
| Diagonal | * 37.85 ft - (11537 mm) |
| Head (inches) | * 6 in - (152 mm) |
| Area | 245.49 ft² |
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Cross 10.5 Meter - GENOA
| Luff | 39.5 ft - (12040 mm) |
|---|---|
| Foot | 20 ft - (6096 mm) |
| Leech | 36 ft - (10973 mm) |
| Length Perpendicular | 18.15 ft - (5532 mm) |
| Area | 358.4 ft² |
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Cross 10.5 Meter - YANKEE
| Luff | 39.5 ft - (12040 mm) |
|---|---|
| Foot | 17.5 ft - (5334 mm) |
| Leech | 29 ft - (8839 mm) |
| Length Perpendicular | 11.74 ft - (3578 mm) |
| Area | 231.79 ft² |
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Cross 10.5 Meter - STAYSAIL
| Luff | 25 ft - (7620 mm) |
|---|---|
| Foot | 9.75 ft - (2972 mm) |
| Leech | 22.5 ft - (6858 mm) |
| Length Perpendicular | 8.76 ft - (2670 mm) |
| Area | 109.53 ft² |
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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.