Båtenvår - NOR11651
Sailing performance analysis for a First 31.7 LR from 2006, built by Beneteau and designed by Finot.
Data provided by the Offshore Racing Congress (ORC) · Certificate issued 04/04/2026
The First 31.7 LR is a well-balanced cruiser-racer, offering a versatile sailing experience. It achieves 5.7 knots upwind in 10 knots of wind, showing good performance on the beat. However, it struggles downwind, with a speed of 5 knots, despite carrying a symmetric spinnaker. The sail plan is balanced, with neither the jib nor the mainsail overpowering the other.
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🥇2 🥈1
| Date | Event | Result | Class | Skipper |
|---|---|---|---|---|
| 2026 | ||||
| 01.09.2026 | Hjeltefjordtrimmen 2026 | 2/8🥈 | LITEN BÅT | Anne-Gurine Gjøsæter |
| 22.08.2026 | Askøy Rundt 2026 | 4/8 | NOR-rating -> 1,101 | Anne-Gurine Folgerø Gjøsæter |
| 29.05.2026 | Norgesmesterskap Doublehanded/Seilmakeren Doublehanded | 17/23 | Liten | Harald GJØSÆTER |
| 2025 | ||||
| 13.09.2025 | Høststormseilasen 2025 | 5/10 | NOR Rating - Doublehanded | Anne-Gurine Folgerø Gjøsæter |
| 09.09.2025 | Hjeltefjordtrimmen 2025 | 1/9🥇 | LITEN BÅT | Anne-Gurine Folgerø Gjøsæter |
| 06.09.2025 | Bergen Singlehanded 2025 | 12/19 | NorRating med spinnaker | Harald GJØSÆTER |
| 16.08.2025 | Askøy Rundt 2025 | 5/8 | NOR-rating -> 1,101 | Anne-Gurine Gjøsæter |
| 23.05.2025 | Seilmakeren Doublehanded 2025 | 11/15 | NOR Rating klasse A | Harald Gjøsæter |
| 2024 | ||||
| 07.09.2024 | Bergen Singlehanded | 1/2🥇 | NorRating uten spinnaker | Harald GJØSÆTER |
| 17.08.2024 | Askøy Rundt 2024 | 6/11 | NOR-rating -> 1,101 | Anne-Gurine Folgerø Gjøsæter |
| 24.05.2024 | Seilmakeren Doublehanded 2024 | 10/13 | NOR Rating klasse A | Harald Gjøsæter |
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 | 2.23 | 3.20 | 3.91 | 4.42 | 4.74 | 4.88 | 4.94 | 4.96 | 4.87 |
| 52° | 3.50 | 4.89 | 5.81 | 6.38 | 6.70 | 6.86 | 6.93 | 6.98 | 6.96 |
| 60° | 3.76 | 5.14 | 6.05 | 6.57 | 6.87 | 7.04 | 7.12 | 7.20 | 7.21 |
| 75° | 3.93 | 5.29 | 6.21 | 6.72 | 7.02 | 7.25 | 7.42 | 7.59 | 7.67 |
| 90° | 3.79 | 5.17 | 6.13 | 6.76 | 7.10 | 7.32 | 7.56 | 7.94 | 8.15 |
| 110° | 3.63 | 5.13 | 6.22 | 6.87 | 7.27 | 7.62 | 7.92 | 8.33 | 8.65 |
| 120° | 3.47 | 4.94 | 6.04 | 6.76 | 7.20 | 7.58 | 7.96 | 8.72 | 9.30 |
| 135° | 3.02 | 4.42 | 5.51 | 6.38 | 6.93 | 7.33 | 7.72 | 8.62 | 9.89 |
| 150° | 2.51 | 3.75 | 4.83 | 5.76 | 6.49 | 6.97 | 7.34 | 8.10 | 9.09 |
| Run VMG | 2.17 | 3.25 | 4.19 | 5.00 | 5.72 | 6.31 | 6.77 | 7.48 | 8.18 |
Boat speed (knots) at wind angle / wind speed