Roti Proa II, sailing close-haul, isometric view generated from FreeCAD design
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Specifications
Overall Length: 9000 mm
Beam: 5637.8 mm (with outrigger)
Total mass (unloaded): 2350.22 kg
Total unsinkable volume: 2798.62 liters
Displacement of unsinkable volume in saltwater: 2868.59 kg
Capacity: 4 passengers + 2 crew
Solar Power: 4 kW peak (8 panels)
Motor Power: 4 kW electric
Cruising Speed: 10 knots
Daily Range: 50 nautical miles (solar-electric only)
Battery Type: LiFePO₄
Motor Runtime: 5 hours (battery only)
Masts: Two unstayed rotatable masts, cylindrical aluminium pipes with diameter 152.4 mm and wall thickness 6.35 mm; mast height from vaka sole: 8500 mm
Rig: Each mast carries one tanja sail, each rectangular-shaped 5500 mm x 5500 mm; total sail area: 60.5 square meters
Lines Plan
Profile (vaka, rudder and ama sections)
Full Breadth Plan
Body Plan (all sections)
3D Renders
Beaching
Beam Reach
Broad Reach
Close Haul
Close Haul Reefed
Goose Wing
Download CAD Models
Access CAD models for all sail configurations in FreeCAD (.FCStd) and STEP (.step) formats. These files include the complete 3D geometry and can be modified for your specific requirements.
Formats:
- FreeCAD (.FCStd): Parametric model for FreeCAD (free and open-source)
- STEP (.step): Universal CAD format compatible with most CAD software
License: Models are shared under CC BY-SA 4.0 - free to use, modify, and share with attribution.
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