White Shadow - NOR12443
Sailing performance analysis for a Landmark 43 from 2009, built by Premier Composite and designed by Mark Mills.
Data provided by the Offshore Racing Congress (ORC) · Certificate issued 05/05/2026
A pure racer with a focus on speed and agility, this boat delivers swift performance across various conditions. It reaches 7.1 knots upwind in 10 knots of wind and showcases impressive downwind speed with its large asymmetric spinnaker, hitting 8.5 knots on a reach in 10 knots of breeze. With a balanced sail plan, it is well-powered for its size, and shows clear planing potential, achieving 11.6 knots in 20 knots of wind.
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🥇6 🥈2
| Date | Event | Result | Class | Skipper |
|---|---|---|---|---|
| 2026 | ||||
| 22.08.2026 | Askøy Rundt 2026 | 2/6🥈 | NOR-rating 1,102 -> | Torkjel Valland |
| 25.06.2026 | Island Offshore | 7/21 | Class Wergeland | Karl Otto BOOK |
| 06.06.2026 | Bergen Race Weekend 2026 | 2/7🥈 | Norrating med spinnaker stor | Rosenberg EIRIK |
| 29.05.2026 | Norgesmesterskap Doublehanded/Seilmakeren Doublehanded | 8/21 | Stor | Karl Otto BOOK |
| 21.03.2026 | Isbjørnen 2026 | 1/12🥇 | NorRating m/spinnaker | Eirik ROSENBERG |
| 2025 | ||||
| 29.11.2025 | Nisseseilasen 2025 | 1/11🥇 | NorRating med spinnaker | Eirik ROSENBERG |
| 20.09.2025 | Klubbmesterskap Bergens Seilforening 2025 | 6/11 | NorRating med spinnaker | Martin HOPE |
| 13.09.2025 | Høststormseilasen 2025 | 1/6🥇 | NOR Rating - m spinnaker >= 1.102 | Torkjel Valland |
| 08.08.2025 | Norgesmesterskap NOR Rating | 1/10🥇 | NORRating - STOR | Torkjel VALLAND |
| 06.05.2025 | Bergens | 9/23 | NorRating med spinnaker | Eirik ROSENBERG |
| 2024 | ||||
| 24.08.2024 | Norgesmesterskap ORCi og IOD Princess | 1/8🥇 | Stor klasse | Torkjel VALLAND |
| 08.06.2024 | ORC DH World Championship | 1/15🥇 | Class A | Karl Otto BOOK |
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 | 2.90 | 4.12 | 5.01 | 5.58 | 5.87 | 6.03 | 6.13 | 6.25 | 6.26 |
| 52° | 4.54 | 6.24 | 7.35 | 7.89 | 8.15 | 8.29 | 8.38 | 8.51 | 8.57 |
| 60° | 4.88 | 6.56 | 7.58 | 8.06 | 8.33 | 8.49 | 8.61 | 8.77 | 8.85 |
| 75° | 5.14 | 6.78 | 7.72 | 8.19 | 8.51 | 8.75 | 8.94 | 9.20 | 9.38 |
| 90° | 4.99 | 6.64 | 7.74 | 8.20 | 8.53 | 8.85 | 9.14 | 9.63 | 10.02 |
| 110° | 4.87 | 6.77 | 7.94 | 8.52 | 8.97 | 9.27 | 9.56 | 10.14 | 10.70 |
| 120° | 4.69 | 6.62 | 7.87 | 8.49 | 9.01 | 9.52 | 9.98 | 10.79 | 11.65 |
| 135° | 4.18 | 5.97 | 7.36 | 8.15 | 8.69 | 9.24 | 9.88 | 11.62 | 13.51 |
| 150° | 3.46 | 5.00 | 6.29 | 7.36 | 8.10 | 8.58 | 9.05 | 10.22 | 12.50 |
| Run VMG | 2.99 | 4.33 | 5.45 | 6.38 | 7.07 | 7.52 | 7.92 | 8.85 | 10.82 |
Boat speed (knots) at wind angle / wind speed