Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
6.4 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 22.5′, the Maxfli 28 tops out around 6.4 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √22.5′ LWL = 6.4 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
Ballast / Displacement
42.0%
Stiff enough to carry a big genoa comfortably into moderate breeze.
Displacement / Length
274
Moderate-heavy — carries provisions well, deliberate in light air.
Hull Speed
6.4kts
Pounds/Inch Immersion
5lbs
Weight needed to sink the hull one inch — loading sensitivity.
PHRF Fleet Position
Where the Maxfli 28 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Ericson 28
Lancer 29 3
Ontario 28
Ericson 29
How It Compares
Side-by-side with the boats most often cross-shopped against the Maxfli 28.
| Maxfli 28 | Aloa 29 | Ericson 28 | Ericson 29 | Lancer 29 3 | Ontario 28 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 28.6 | 28.5 | 28.5 | 28.6 | 28.7 | 28.6 |
| LWL | 22.5 | 21.6 | 24.2 | 22.0 | 23.5 | 22.0 |
| Beam | 9.7 | 10.8 | 10.5 | 9.3 | 10.0 | 10.0 |
| Displacement | 7 | 6 | 7 | 8 | 7 | 6 |
| Ballast | 2 | 2 | 3 | 3 | 3 | 2 |
| Sail Area | — | 344 | 422 | 436 | 374 | 400 |
| Performance | ||||||
| PHRF | — | — | 180 | 210 | 194 | 195 |
| SA/Disp | — | 15.7 | 17.7 | 16.8 | 15.3 | 17.9 |
| Bal/Disp | 42.0 | 33.6 | 40.0 | 45.9 | 38.5 | 42.7 |
| Comfort | — | 18.1 | 19.9 | 28.3 | 22.4 | 20.4 |
| Capsize | — | 2.31 | 2.15 | 1.82 | 2.02 | 2.11 |
| Hull Speed | — | 6.2 | 6.6 | 6.3 | 6.5 | 6.3 |