Mata'i - NOR8283
Sailing performance analysis for a BANNER 28 LR from 1981, built by IN Fiberbåde AS and designed by Ib Hauge Nilsen.
Data provided by the Offshore Racing Congress (ORC) · Certificate issued 28/04/2025
This performance sailboat is well-powered for its size, showing agility and speed across various conditions. It achieves 5.6 knots upwind in 10 knots of wind and can reach a top speed of 9.3 knots in strong winds. Equipped with a symmetric spinnaker, the sail wardrobe is balanced, though the spinnaker is modest for its size. The boat's light build and planing potential make it a thrilling choice for those seeking speed and excitement on the water.
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
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 | 3.45 | 4.07 | 4.38 | 4.48 | 4.53 | 4.55 | 4.52 | 4.34 |
| 52° | 4.01 | 5.19 | 5.85 | 6.12 | 6.24 | 6.30 | 6.35 | 6.40 | 6.35 |
| 60° | 4.25 | 5.41 | 5.99 | 6.26 | 6.40 | 6.48 | 6.55 | 6.63 | 6.63 |
| 75° | 4.38 | 5.54 | 6.10 | 6.40 | 6.61 | 6.77 | 6.88 | 7.06 | 7.14 |
| 90° | 4.26 | 5.45 | 6.09 | 6.44 | 6.72 | 6.97 | 7.18 | 7.54 | 7.80 |
| 110° | 4.00 | 5.29 | 6.10 | 6.55 | 6.92 | 7.27 | 7.62 | 8.22 | 8.90 |
| 120° | 3.81 | 5.10 | 5.97 | 6.47 | 6.90 | 7.33 | 7.83 | 9.16 | 10.44 |
| 135° | 3.32 | 4.55 | 5.51 | 6.20 | 6.63 | 7.08 | 7.58 | 9.32 | 12.38 |
| 150° | 2.64 | 3.80 | 4.84 | 5.68 | 6.27 | 6.68 | 7.10 | 8.18 | 10.93 |
| Run VMG | 2.29 | 3.29 | 4.19 | 4.96 | 5.63 | 6.13 | 6.52 | 7.30 | 9.47 |
Boat speed (knots) at wind angle / wind speed