Duli - NOR10205
Sailing performance analysis for a FIRST 35 S5 from 1990, built by Beneteau and designed by BENETEAU.
Data provided by the Offshore Racing Congress (ORC) · Certificate issued 14/04/2026
A comfort cruiser, this boat makes steady progress with a top speed of 8.64 knots in 20 knots of wind. It's not an upwind flyer, achieving 5.52 knots upwind in 10 knots of wind, and it struggles downwind at 4.99 knots with the symmetric spinnaker. The sail plan includes a large spinnaker for its size, complemented by a compact jib relative to the mainsail.
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🥇1 🥈1
| Date | Event | Result | Class | Skipper |
|---|---|---|---|---|
| 2025 | ||||
| 24.05.2025 | Storholmen rundt 2025 | 1/6🥇 | Nor-Rating | Eric Fagerheim |
| 2024 | ||||
| 26.06.2024 | Vårserien 2024 MSS | 5/13 | NOR Rating | Eric Fagerheim |
| 08.06.2024 | Regatta Tordenskjold 2024 | 11/12 | NOR Rating 1 | Eric Fagerheim |
| 01.06.2024 | Storholmen Rundt 2024 | 2/6🥈 | NOR Rating > 0.97 | Mannskap 1: Eric Fagerheim |
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 | 2.02 | 2.95 | 3.66 | 4.16 | 4.47 | 4.61 | 4.68 | 4.72 | 4.64 |
| 52° | 3.19 | 4.56 | 5.52 | 6.15 | 6.49 | 6.67 | 6.75 | 6.82 | 6.82 |
| 60° | 3.44 | 4.84 | 5.79 | 6.38 | 6.70 | 6.88 | 6.97 | 7.06 | 7.08 |
| 75° | 3.60 | 5.01 | 5.98 | 6.58 | 6.89 | 7.10 | 7.24 | 7.41 | 7.49 |
| 90° | 3.65 | 5.16 | 6.24 | 6.81 | 7.14 | 7.33 | 7.46 | 7.73 | 7.96 |
| 110° | 3.65 | 5.17 | 6.29 | 6.93 | 7.29 | 7.60 | 7.92 | 8.42 | 8.70 |
| 120° | 3.48 | 4.96 | 6.08 | 6.81 | 7.24 | 7.57 | 7.93 | 8.64 | 9.13 |
| 135° | 2.99 | 4.38 | 5.51 | 6.39 | 6.96 | 7.36 | 7.71 | 8.49 | 9.23 |
| 150° | 2.47 | 3.70 | 4.79 | 5.75 | 6.50 | 7.01 | 7.37 | 8.09 | 8.82 |
| Run VMG | 2.14 | 3.20 | 4.15 | 4.99 | 5.74 | 6.34 | 6.82 | 7.51 | 8.18 |
Boat speed (knots) at wind angle / wind speed