Spiralis - NOR11643
Sailing performance analysis for a Hanse 370 from 2006, built by Hanse Yachts and designed by Judel/Vrolijk.
Data provided by the Offshore Racing Congress (ORC) · Certificate issued 28/04/2026
As a comfort cruiser, this boat is designed for relaxed sailing rather than speed. It achieves 5.9 knots upwind in 10 knots of wind, and while it struggles a bit downwind at 5.3 knots in the same conditions, it becomes more lively in stronger winds, reaching up to 9.3 knots. The sail wardrobe includes a symmetric spinnaker, though it is modestly sized, which may explain its downwind performance. The jib is compact relative to the mainsail, focusing on stability and ease of handling.
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
| Date | Event | Result | Class | Skipper |
|---|---|---|---|---|
| 2026 | ||||
| 28.08.2026 | Hollænderseilasen 2026 | 11/15 | SH Liten | Sven Olav OLVIN |
| 13.05.2026 | Skagen Offshore Race 2026 | 18/30 | Doublehanded | Sven Olav OLVIN |
| 2025 | ||||
| 28.05.2025 | Skagen Race 2025 | 9/17 | NORrating Full Crew 1 | Sven Olav Olvin |
| 2024 | ||||
| 08.05.2024 | Skagen Race 2024 - HOLMESTRAND | 5/20 | Doublehand 1 | Sven Olav Olvin |
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 | 2.13 | 3.12 | 3.86 | 4.42 | 4.86 | 5.11 | 5.21 | 5.27 | 5.18 |
| 52° | 3.38 | 4.84 | 5.85 | 6.58 | 7.06 | 7.35 | 7.48 | 7.58 | 7.57 |
| 60° | 3.67 | 5.14 | 6.15 | 6.85 | 7.29 | 7.56 | 7.71 | 7.84 | 7.85 |
| 75° | 3.87 | 5.34 | 6.36 | 7.05 | 7.47 | 7.76 | 7.99 | 8.26 | 8.36 |
| 90° | 3.85 | 5.45 | 6.59 | 7.32 | 7.71 | 7.91 | 8.07 | 8.54 | 8.85 |
| 110° | 3.89 | 5.49 | 6.68 | 7.43 | 7.88 | 8.25 | 8.58 | 9.00 | 9.31 |
| 120° | 3.73 | 5.30 | 6.48 | 7.29 | 7.79 | 8.20 | 8.59 | 9.34 | 9.86 |
| 135° | 3.23 | 4.72 | 5.90 | 6.84 | 7.47 | 7.91 | 8.32 | 9.17 | 10.25 |
| 150° | 2.68 | 4.00 | 5.16 | 6.14 | 6.95 | 7.51 | 7.92 | 8.69 | 9.58 |
| Run VMG | 2.32 | 3.47 | 4.47 | 5.34 | 6.10 | 6.76 | 7.28 | 8.05 | 8.77 |
Boat speed (knots) at wind angle / wind speed