Stella Polaris - NOR15989
Sailing performance analysis for a x4^0 (series year 2019), built by X-Yachts and designed by Niels Jeppesen.
Data provided by the Offshore Racing Congress (ORC) · Certificate issued 29/05/2026
The X-Yachts x4^0 is a comfort cruiser that offers a smooth sailing experience. It reaches 6.2 knots upwind in 10 knots of wind, showcasing its ability to handle moderate conditions gracefully. The boat comes with an asymmetric spinnaker, and its balanced sail plan ensures versatile performance across various wind angles. It can achieve a top speed of 9.6 knots in strong winds of 20 knots.
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.
Measured sails
Measurements
🏁 Race Results 🥉1
| Date | Event | Result | Class | Skipper |
|---|---|---|---|---|
| 2026 | ||||
| 28.08.2026 | Hollænderseilasen 2026 | 10/16 | Tur M/spinnaker | Håkon TJOMSLAND |
| 12.06.2026 | Færderseilasen 2026 | 9/11 | Tur U/spi H | Håkon TJOMSLAND |
| 2025 | ||||
| 30.08.2025 | Hollænderseilasen 2025 | 7/15 | Tur M/spinnaker | Håkon TJOMSLAND |
| 13.06.2025 | Færderseilasen 2025 | 4/24 | Cruising uten spinnaker 2 | Håkon TJOMSLAND |
| 2024 | ||||
| 31.08.2024 | Hollænderseilasen 2024 | 10/12 | Tur m/spinnaker | Håkon TJOMSLAND |
| 14.06.2024 | Færderseilasen 2024 | 3/14🥉 | Tur uten spinnaker (Hollænder) | Håkon TJOMSLAND |
Race results from manage2sail.com & sailracesystem.no
Identity
Dimensions
Sail Areas
ORC Rating
Rated boat speeds
| Wind Speed (TWS) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 4 kt | 6 kt | 8 kt | 10 kt | 12 kt | 14 kt | 16 kt | 20 kt | 24 kt | |
| Beat VMG | 2.41 | 3.44 | 4.21 | 4.74 | 5.07 | 5.23 | 5.33 | 5.41 | 5.38 |
| 52° | 3.82 | 5.31 | 6.29 | 6.96 | 7.31 | 7.50 | 7.59 | 7.70 | 7.71 |
| 60° | 4.14 | 5.61 | 6.58 | 7.19 | 7.53 | 7.72 | 7.82 | 7.94 | 7.97 |
| 75° | 4.44 | 5.96 | 6.96 | 7.49 | 7.77 | 7.95 | 8.12 | 8.32 | 8.43 |
| 90° | 4.59 | 6.13 | 7.14 | 7.68 | 8.01 | 8.26 | 8.44 | 8.68 | 8.89 |
| 110° | 4.33 | 6.00 | 7.17 | 7.79 | 8.19 | 8.53 | 8.80 | 9.25 | 9.72 |
| 120° | 4.20 | 5.85 | 7.03 | 7.71 | 8.14 | 8.54 | 8.93 | 9.59 | 10.03 |
| 135° | 3.69 | 5.26 | 6.46 | 7.32 | 7.85 | 8.26 | 8.68 | 9.56 | 10.63 |
| 150° | 3.04 | 4.43 | 5.58 | 6.55 | 7.29 | 7.76 | 8.12 | 8.82 | 9.60 |
| Run VMG | 2.64 | 3.84 | 4.83 | 5.67 | 6.33 | 6.81 | 7.22 | 7.86 | 8.47 |
Boat speed (knots) at wind angle / wind speed