The Excess 13 is aggressively canvassed for its weight.
Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
8.7 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 42.6′, the Excess 13 tops out around 8.7 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √42.6′ LWL = 8.7 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
SA / Displacement
24.3
Performance-oriented — carries a lot of canvas for its weight.
Hull Speed
8.7kts
PHRF Fleet Position
Where the Excess 13 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Dufour 48
Estimated Speed by Wind
Rough boat speed estimates at different true wind speeds and points of sail — derived from hull speed, SA/D, and displacement, not measured polars.
| Point of Sail | 6 kts TWS | 10 kts TWS | 15 kts TWS | 20 kts TWS |
|---|---|---|---|---|
| Close-hauled40–50° | 4.1 | 5.2 | 5.8 | 6.0 |
| Close Reach60° | 5.0 | 6.3 | 7.0 | 7.3 |
| Beam Reach90° | 6.1 | 7.7 | 8.6 | 8.7 |
| Broad Reach120–135° | 5.6 | 7.1 | 7.9 | 8.3 |
| Run150–180° | 4.5 | 5.7 | 6.3 | 6.6 |
These are simplified estimates based on hull speed (8.7 kts),
SA/D (24.3), and empirical efficiency curves — not instrument-measured
polars. Real-world speed varies with sea state, bottom condition, sail trim, and current.
Speeds in gold approach hull speed;
bold gold means near or at hull speed.
Wind Range & Comfort Envelope
Estimated wind ranges for comfortable sailing on the Excess 13 — based on sail area, ballast, and displacement characteristics.
Ghosting
0–5 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
5–16 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
16–24 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
24+ kts
Storm conditions. Storm jib or bare poles. Seek shelter if coastal.
How It Compares
Side-by-side with the boats most often cross-shopped against the Excess 13.
| Excess 13 | Balance 502 | Dufour 48 | Rapido 50 | St Francis 500 | Sun Odyssey 49I Perf Jeanneau | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 50.2 | 50.0 | 50.2 | 50.0 | 50.0 | 50.2 |
| LWL | 42.6 | 50.0 | 40.1 | 49.1 | — | 43.6 |
| Beam | 23.8 | 25.9 | 15.9 | 34.1 | 26.3 | 15.1 |
| Displacement | 23 | 28 | 30 | 18 | 31 | 30 |
| Ballast | — | — | 8 | — | — | 10 |
| Sail Area | 1 | 1 | 1 | 1 | 1 | 1,238 |
| Performance | ||||||
| PHRF | — | — | 129 | — | — | — |
| SA/Disp | 24.3 | 26.7 | 20.5 | 40.4 | 23.8 | 20.1 |
| Bal/Disp | — | — | 27.7 | — | — | 35.0 |
| Comfort | — | — | 27.6 | — | — | — |
| Capsize | — | — | 2.04 | — | — | — |
| Hull Speed | — | — | 8.5 | — | — | — |