Impuls - NOR6543
Sailing performance analysis for a SUN LEGENDE 41 from 1990, built by Jeanneau and designed by PETERSONDOUG.
Data provided by the Offshore Racing Congress (ORC) · Certificate issued 29/04/2025
This comfortable cruiser offers a smooth ride, ideal for leisurely voyages. While not a speedster, it reaches 7.4 knots on a reach in 10 knots of wind. Downwind performance is modest, making 5.4 knots in 10 knots of wind, though the large symmetric spinnaker helps optimize its capabilities. The sail setup includes a large genoa relative to the mainsail, enhancing sail power 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.
Measured sails
Spinnaker measurements were not supported before this season's certificates. If no spinnaker is shown, that's why.
Measurements
🏁 Race Results
| Date | Event | Result | Class | Skipper |
|---|---|---|---|---|
| 2025 | ||||
| 30.08.2025 | Hollænderseilasen 2025 | 23/26 | NOR 2 | Kolbjørn ØSTHAUG |
| 13.06.2025 | Færderseilasen 2025 | 14/20 | Racing med spinnaker 3 | Kolbjørn ØSTHAUG |
| 28.05.2025 | Skagen Race 2025 | 11/17 | NORrating Full Crew 1 | Kolbjørn Østhaug |
| 30.04.2025 | Bundefjorden Onsdagsseilaser | 14/20 | NOR rating 2 høst | Kolbjørn ØSTHAUG |
| 30.04.2025 | Bundefjorden Onsdagsseilaser | 13/20 | NOR rating 2 vår | Kolbjørn ØSTHAUG |
| 30.04.2025 | Bundefjorden Onsdagsseilaser | 13/20 | Langbane Klasse 2 | Kolbjørn ØSTHAUG |
| 30.04.2025 | Bundefjorden Onsdagsseilaser | 12/15 | Klubbmesterskap klasse 2 | Kolbjørn ØSTHAUG |
| 2024 | ||||
| 31.08.2024 | Hollænderseilasen 2024 | 16/18 | NOR MS 3 | Kolbjørn ØSTHAUG |
| 07.08.2024 | Bundefjorden Onsdagsseilaser Høst | 13/15 | Stor Klasse | Kolbjørn ØSTHAUG |
| 14.06.2024 | Færderseilasen 2024 | 34/36 | NOR-R m/spi Tristein1 | Kolbjørn ØSTHAUG |
| 08.05.2024 | Skagen Race 2024 - HOLMESTRAND | 15/24 | NOR Rating fullt crew 1 | Kolbjørn Østhaug |
| 24.04.2024 | Bundefjorden Onsdagsseilaser Vår | 14/17 | Stor Klasse | Kolbjørn ØSTHAUG |
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 | 2.38 | 3.30 | 4.04 | 4.59 | 4.95 | 5.13 | 5.22 | 5.28 | 5.24 |
| 52° | 3.77 | 5.10 | 6.08 | 6.73 | 7.08 | 7.26 | 7.33 | 7.41 | 7.42 |
| 60° | 4.04 | 5.41 | 6.36 | 6.94 | 7.25 | 7.43 | 7.52 | 7.60 | 7.64 |
| 75° | 4.21 | 5.61 | 6.55 | 7.10 | 7.41 | 7.61 | 7.75 | 7.91 | 8.00 |
| 90° | 4.01 | 5.49 | 6.58 | 7.23 | 7.55 | 7.72 | 7.86 | 8.15 | 8.34 |
| 110° | 4.08 | 5.63 | 6.80 | 7.42 | 7.78 | 8.06 | 8.30 | 8.67 | 9.00 |
| 120° | 3.94 | 5.48 | 6.66 | 7.34 | 7.74 | 8.05 | 8.36 | 9.02 | 9.55 |
| 135° | 3.41 | 4.85 | 6.08 | 6.98 | 7.49 | 7.85 | 8.17 | 8.88 | 9.85 |
| 150° | 2.85 | 4.09 | 5.21 | 6.20 | 6.95 | 7.40 | 7.72 | 8.32 | 9.00 |
| Run VMG | 2.47 | 3.54 | 4.51 | 5.37 | 6.03 | 6.64 | 7.12 | 7.80 | 8.34 |
Boat speed (knots) at wind angle / wind speed