Windmachine - NOR10442
Sailing performance analysis for a X-442 Mk II from 2002, built by X-Yachts and designed by Niels Jeppesen.
Data provided by the Offshore Racing Congress (ORC) · Certificate issued 28/04/2026
As a cruiser-racer, this boat is well-powered for its size, making it a strong contender in varied conditions. It reaches 6.8 knots upwind in 10 knots of wind and can hit 9.7 knots in a strong breeze of 20 knots. However, it struggles a bit downwind, achieving 5.7 knots in 10 knots of wind, even with its symmetric spinnaker. The sail plan features a large genoa relative to the mainsail, providing ample power upwind.
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 | ||||
| 12.06.2026 | Færderseilasen 2026 | 2/15🥈 | RACING med spi 7 | Per AASERUD |
| 2025 | ||||
| 30.08.2025 | Hollænderseilasen 2025 | 9/21 | NOR 4 | Per AASERUD |
| 13.06.2025 | Færderseilasen 2025 | 12/22 | Racing med spinnaker 6 | Per AASERUD |
| 2024 | ||||
| 31.08.2024 | Hollænderseilasen 2024 | 18/22 | NOR MS 5 | Per AASERUD |
| 14.06.2024 | Færderseilasen 2024 | 4/12 | NOR-R m/spi Tristein3 | Per AASERUD |
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 | 2.78 | 3.90 | 4.70 | 5.25 | 5.53 | 5.67 | 5.75 | 5.82 | 5.80 |
| 52° | 4.37 | 5.94 | 6.96 | 7.54 | 7.83 | 7.96 | 8.03 | 8.11 | 8.13 |
| 60° | 4.72 | 6.25 | 7.21 | 7.74 | 8.01 | 8.16 | 8.23 | 8.33 | 8.38 |
| 75° | 4.98 | 6.45 | 7.36 | 7.87 | 8.17 | 8.38 | 8.52 | 8.69 | 8.82 |
| 90° | 4.84 | 6.32 | 7.29 | 7.85 | 8.20 | 8.47 | 8.70 | 9.05 | 9.26 |
| 110° | 4.18 | 5.89 | 7.12 | 7.87 | 8.30 | 8.63 | 8.90 | 9.27 | 9.50 |
| 120° | 4.05 | 5.73 | 6.96 | 7.77 | 8.26 | 8.65 | 9.03 | 9.68 | 10.13 |
| 135° | 3.54 | 5.14 | 6.40 | 7.37 | 7.99 | 8.43 | 8.84 | 9.73 | 10.77 |
| 150° | 2.95 | 4.35 | 5.56 | 6.60 | 7.44 | 8.00 | 8.42 | 9.22 | 10.18 |
| Run VMG | 2.56 | 3.76 | 4.81 | 5.72 | 6.51 | 7.16 | 7.69 | 8.47 | 9.21 |
Boat speed (knots) at wind angle / wind speed