UNO SISS - NOR15711
Sailing performance analysis for a SOTO 40 from 1998, built by AST. OCEANTECH and designed by JAVIER SOTO.
Data provided by the Offshore Racing Congress (ORC)
As a pure racer, this boat is built for speed. It achieves 7.4 knots upwind in 10 knots of wind and excels downwind with a speed of 7.5 knots under the same conditions. Designed to maximize performance, it carries a large asymmetric spinnaker and a compact jib, allowing it to stay competitive across various wind angles. With a top speed of 12.2 knots in 14 knots of wind, it's quick for its size, especially on a reach.
Sailing performance as a polar diagram
A polar diagram shows boat speed at different wind angles and wind speeds. The distance from center represents boat speed in knots, and the angle represents the boats angle to the wind. The wind speed is shown as true wind speed (TWS), not apparent wind speed. Likewise, the wind angle is shown as true wind angle (TWA), not apparent wind angle.
Beat: Sailing upwind (toward the wind)
Beam Reach: Sailing across the wind
Run: Sailing downwind (away from the wind)
VMG Performance
Wind Speed (columns): True wind speed (TWS) in knots - the actual wind speed, not the apparent wind you feel on deck.
VMG (Velocity Made Good) is your effective speed toward your destination, not your actual boat speed.
Beat VMG (top bars): Speed made good when sailing upwind. Higher is better - it means you're reaching the windward mark faster.
Run VMG (bottom bars): Speed made good when sailing downwind. Higher is better - it means you're reaching the leeward mark faster.
Identity
Dimensions
Sail Areas
ORC Rating
Rated boat speeds
| Wind Speed (TWS) | |||||||
|---|---|---|---|---|---|---|---|
| 6 kt | 8 kt | 10 kt | 12 kt | 14 kt | 16 kt | 20 kt | |
| Beat VMG | 4.48 | 5.26 | 5.59 | 5.77 | 5.87 | 5.92 | 5.88 |
| 52° | 6.81 | 7.75 | 8.09 | 8.28 | 8.41 | 8.49 | 8.53 |
| 60° | 7.19 | 8.06 | 8.40 | 8.63 | 8.80 | 8.92 | 9.02 |
| 75° | 7.46 | 8.33 | 8.87 | 9.21 | 9.47 | 9.67 | 9.93 |
| 90° | 7.37 | 8.30 | 9.05 | 9.67 | 10.09 | 10.43 | 10.91 |
| 110° | 7.09 | 8.27 | 9.07 | 9.66 | 10.20 | 10.98 | 12.30 |
| 120° | 6.91 | 8.24 | 9.17 | 10.00 | 10.72 | 11.39 | 12.59 |
| 135° | 6.20 | 7.77 | 8.76 | 9.82 | 11.00 | 12.15 | 14.27 |
| 150° | 5.19 | 6.59 | 7.75 | 8.67 | 9.62 | 10.79 | 13.61 |
| Run VMG | 4.49 | 5.71 | 6.71 | 7.51 | 8.33 | 9.35 | 11.79 |
Boat speed (knots) at wind angle / wind speed