Ambition - Sk15
Sailing performance analysis for a 7 m S from 1918, built by Anker & Jensen and designed by Johan Anker.
Data provided by the Offshore Racing Congress (ORC)
This cruiser-racer is light for its length and finds its groove in light air, reaching 7.4 knots on a reach in 10 knots of wind. It shows solid upwind performance with a speed of 5.5 knots in the same wind conditions. Without a spinnaker, downwind performance is a bit of a struggle, making it less competitive on those courses. The jib is compact relative to the mainsail, designed to excel when sailing close to the 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.
🏁 Race Results🥇1
| Date | Event | Result | Class | Skipper |
|---|---|---|---|---|
| 2025 | ||||
| 20.09.2025 | Klubbmesterskap Bergens Seilforening 2025 | 1/2🥇 | NorRating uten spinnaker | Knut KISMUL |
| 06.05.2025 | Bergens | /2 | NorRating uten spinnaker | Knut KISMUL |
| 2024 | ||||
| 28.09.2024 | Klubbmesterskap Bergens Seilforening 2024 | /6 | TurGlede | Knut KISMUL |
Race results from manage2sail.com & sailracesystem.no
Identity
Dimensions
Sail Areas
ORC Rating
Rated boat speeds
| Wind Speed (TWS) | |||||||
|---|---|---|---|---|---|---|---|
| 6 kt | 8 kt | 10 kt | 12 kt | 14 kt | 16 kt | 20 kt | |
| Beat VMG | 3.39 | 3.83 | 4.04 | 4.15 | 4.24 | 4.33 | 4.38 |
| 52° | 5.15 | 5.79 | 6.11 | 6.29 | 6.40 | 6.57 | 3.83 |
| 60° | 5.45 | 6.18 | 6.51 | 6.68 | 6.77 | 6.91 | 3.04 |
| 75° | 5.73 | 6.64 | 6.96 | 7.11 | 7.20 | 7.25 | 6.73 |
| 90° | 5.72 | 6.70 | 7.20 | 7.41 | 7.52 | 7.58 | 7.63 |
| 110° | 5.24 | 6.38 | 7.04 | 7.42 | 7.65 | 7.84 | 8.63 |
| 120° | 4.96 | 6.04 | 6.83 | 7.25 | 7.57 | 7.88 | 8.17 |
| 135° | 4.25 | 5.27 | 6.20 | 6.88 | 7.28 | 7.59 | 8.22 |
| 150° | 3.57 | 4.59 | 5.46 | 6.30 | 6.91 | 7.32 | 7.93 |
| Run VMG | 3.09 | 4.00 | 4.82 | 5.59 | 6.34 | 6.93 | 7.65 |
Boat speed (knots) at wind angle / wind speed