Lethe - NOR12488
Sailing performance analysis for a First 34.7 from 2008, built by Beneteau and designed by B.Farr.
Data provided by the Offshore Racing Congress (ORC) · Certificate issued 21/04/2026
The description is written by AI, but its numbers and comparisons are calculated before the text is generated.
The speed ranking comes from the ORC polar at 5 m/s and is compared with 364 Norwegian boats within ±5% of this boat's length. Upwind and downwind use VMG; reaching uses boat speed.
The scoring advantage is calculated using APH Time-on-Time against 102 Norwegian boats with similar APH from certificate year 2026. It is shown only when the advantage is clear across most of the condition range.
This is modelled performance, not a forecast. Course, waves, sails, crew, and tactics still matter.
Beneteau First 34.7 is among the 10 percent fastest downwind compared to Norwegian boats of approximately the same length. In 10 knots of wind, it reaches speeds of 5.9 knots upwind, 7.4 knots reaching, and 5.6 knots downwind. It has an advantage on corrected scoring in 6–8 knots of wind when the course includes long downwind legs.
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🥇10 🥈6 🥉3
| Date | Event | Result | Class | Skipper |
|---|---|---|---|---|
| 2026 | ||||
| 05.09.2026 | Raymarine OneStar 2026 | 4/20 | Liten Klasse | Øyvind KNUDSEN |
| 28.08.2026 | Hollænderseilasen 2026 | 1/15🥇 | SH Liten | Øyvind KNUDSEN |
| 25.06.2026 | Island Offshore | 2/20🥈 | Class Partner | Øyvind KNUDSEN |
| 19.06.2026 | Kaupangleden Doublehanded 2026 | 1/18🥇 | NOR-Rating - Doublehanded | Øyvind KNUDSEN |
| 12.06.2026 | Færderseilasen 2026 | 5/38 | RACING med spi 4 | Øyvind KNUDSEN |
| 29.05.2026 | Oslofjorden Rundt 2026 | 1/17🥇 | Liten Klasse | Øyvind KNUDSEN |
| 13.05.2026 | Skagen Offshore Race 2026 | 5/30 | Doublehanded | Øyvind KNUDSEN |
| 2025 | ||||
| 27.09.2025 | Klubbmesterskap Jeløy Rundt | 1/11🥇 | Klubbmesterskap Jeløy Rundt | Øyvind KNUDSEN |
| 13.09.2025 | Raymarine OneStar | 3/15🥉 | Liten Klasse | Morten KNUDSEN |
| 30.08.2025 | Hollænderseilasen 2025 | 6/27 | NOR-Rating Doublehanded | Øyvind KNUDSEN |
| 23.08.2025 | Sooningen 2025 | 4/11 | Doublehanded - NOR rating | Øyvind KNUDSEN |
| 13.06.2025 | Færderseilasen 2025 | 1/20🥇 | Racing med spinnaker 3 | Øyvind KNUDSEN |
| 28.05.2025 | Skagen Race 2025 | 3/17🥉 | NORrating Full Crew 1 | Øyvind Knudsen |
| 23.05.2025 | Oslofjorden Rundt | 1/27🥇 | OFR 2025 DH | Øyvind KNUDSEN |
| 13.05.2025 | Navigare Cup | 2/19🥈 | Navigare Cup | Øyvind KNUDSEN |
| 01.05.2025 | Sessongåpning | 2/8🥈 | Larkollen Rundt | Øyvind KNUDSEN |
| 2024 | ||||
| 06.09.2024 | Raymarine One Star | 2/20🥈 | Liten Klasse | Øyvind KNUDSEN |
| 31.08.2024 | Hollænderseilasen 2024 | 1/13🥇 | DH1 | Øyvind KNUDSEN |
| 28.06.2024 | Norgesmesterskap Shorthanded | 2/11🥈 | Shorthanded | Øyvind KNUDSEN |
| 21.06.2024 | Kaupangleden Doublehanden 2024 | 1/10🥇 | Racing 1 | Øyvind Knudsen |
| 08.06.2024 | ORC DH World Championship | 3/28🥉 | Class C | Øyvind KNUDSEN |
| 23.05.2024 | RAYMARINE 2 STAR | 1/10🥇 | RAYMARINE 2 STAR Liten Klasse | Øyvind KNUDSEN |
| 14.05.2024 | Navigare Cup | 4/18 | Scoring Configuration 3 | Øyvind KNUDSEN |
| 11.05.2024 | Skagen Race Ultra | 4/25 | Doublehanded 1 | Øyvind Knudsen |
| 08.05.2024 | Skagen Race 2024 - HOLMESTRAND | 2/20🥈 | Doublehand 1 | Øyvind Knudsen |
| 01.05.2024 | Sesongåpning | 1/19🥇 | Larkollen Rundt | Øyvind KNUDSEN |
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 | 2.37 | 3.36 | 4.08 | 4.58 | 4.83 | 4.94 | 4.99 | 5.01 | 4.89 |
| 52° | 3.73 | 5.14 | 6.05 | 6.60 | 6.88 | 7.00 | 7.07 | 7.13 | 7.10 |
| 60° | 4.02 | 5.41 | 6.29 | 6.79 | 7.06 | 7.20 | 7.28 | 7.36 | 7.35 |
| 75° | 4.23 | 5.68 | 6.58 | 7.02 | 7.23 | 7.44 | 7.59 | 7.75 | 7.82 |
| 90° | 4.43 | 5.91 | 6.78 | 7.23 | 7.53 | 7.73 | 7.86 | 8.13 | 8.36 |
| 110° | 4.29 | 5.90 | 6.88 | 7.39 | 7.77 | 8.07 | 8.29 | 8.90 | 9.35 |
| 120° | 4.16 | 5.76 | 6.79 | 7.33 | 7.76 | 8.19 | 8.61 | 9.23 | 10.01 |
| 135° | 3.68 | 5.20 | 6.33 | 7.03 | 7.48 | 7.93 | 8.42 | 9.62 | 11.61 |
| 150° | 3.05 | 4.39 | 5.50 | 6.41 | 7.01 | 7.40 | 7.77 | 8.61 | 10.14 |
| Run VMG | 2.64 | 3.80 | 4.77 | 5.56 | 6.11 | 6.53 | 6.89 | 7.54 | 8.78 |
Boat speed (knots) at wind angle / wind speed