Dubbel Duck - NOR8856
Sailing performance analysis for a One Off 1/2 ton (series year 1983), built by OneOff and designed by D.Duckman.
Data provided by the Offshore Racing Congress (ORC) · Certificate issued 14/04/2025
A performance sailboat that impresses with its speed and agility. It achieves 5.7 knots upwind in 10 knots of wind, showcasing its capability in moderate conditions. On a reach, it hits 6.7 knots in the same breeze, and can top out at 8.8 knots in strong winds. Equipped with a modest symmetric spinnaker and a balanced sail plan, this boat is well-powered for its size, yet light and nimble.
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 |
|---|---|---|---|---|
| 2026 | ||||
| 01.08.2026 | Seldén Half Ton Classics Cup Hankø 2026 | 22/24 | Vintage | Roy Werner Russ |
| 25.04.2026 | Treningssamling - Løkkevika | 12/15 | Vintage | Roy Werner Russ |
| 2025 | ||||
| 01.11.2025 | Half Ton Class Norway - Vinterserie 25/26 | 13/19 | Half Ton | Are Filip Eklund |
| 03.05.2025 | Hvaler Rundt | 16/17 | NOR-Rating | Kjell ARNESEN |
| 2024 | ||||
| 14.09.2024 | MK Båt Cup | 5/9 | Half Ton | Kjell ARNESEN |
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 | 2.56 | 3.47 | 4.12 | 4.44 | 4.55 | 4.59 | 4.61 | 4.56 | 4.33 |
| 52° | 4.02 | 5.24 | 5.95 | 6.27 | 6.39 | 6.46 | 6.50 | 6.53 | 6.45 |
| 60° | 4.28 | 5.48 | 6.11 | 6.42 | 6.58 | 6.66 | 6.72 | 6.78 | 6.76 |
| 75° | 4.43 | 5.63 | 6.22 | 6.56 | 6.80 | 6.96 | 7.05 | 7.20 | 7.25 |
| 90° | 4.31 | 5.54 | 6.20 | 6.59 | 6.89 | 7.15 | 7.35 | 7.64 | 7.81 |
| 110° | 4.06 | 5.37 | 6.22 | 6.69 | 7.08 | 7.42 | 7.71 | 8.16 | 8.42 |
| 120° | 3.86 | 5.18 | 6.08 | 6.59 | 7.02 | 7.43 | 7.85 | 8.75 | 9.59 |
| 135° | 3.35 | 4.64 | 5.65 | 6.29 | 6.73 | 7.15 | 7.60 | 8.79 | 11.20 |
| 150° | 2.77 | 3.95 | 4.99 | 5.82 | 6.37 | 6.78 | 7.18 | 8.10 | 9.85 |
| Run VMG | 2.40 | 3.42 | 4.32 | 5.10 | 5.75 | 6.24 | 6.64 | 7.39 | 8.53 |
Boat speed (knots) at wind angle / wind speed