Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
5.5 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 17.0′, the Macgregor 19 tops out around 5.5 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √17.0′ LWL = 5.5 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
39.0%
Stiff enough to carry a big genoa comfortably into moderate breeze.
Displacement / Length
186
Moderate — a good balance of speed and load-carrying ability.
Hull Speed
5.5kts
Pounds/Inch Immersion
3lbs
Weight needed to sink the hull one inch — loading sensitivity.
PHRF Fleet Position
Where the Macgregor 19 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Flying Scot
Oday 19
Starwind 19
How It Compares
Side-by-side with the boats most often cross-shopped against the Macgregor 19.
| Macgregor 19 | Com Pac 19 | Flying Scot | Islands 19 | Oday 19 | Starwind 19 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 18.8 | 19.0 | 19.0 | 18.7 | 19.0 | 18.6 |
| LWL | 17.0 | 16.3 | 18.5 | 16.8 | 16.7 | 15.6 |
| Beam | 7.4 | 7.0 | 6.8 | 7.6 | 7.8 | 7.5 |
| Displacement | 2 | 2 | 850 | 950 | 2 | 1 |
| Ballast | 800 | 800 | — | — | 300 | 395 |
| Sail Area | — | 145 | 191 | 205 | 179 | — |
| Performance | ||||||
| PHRF | — | — | 204 | — | 220 | 288 |
| SA/Disp | — | 14.7 | 34.1 | 34.0 | 17.9 | — |
| Bal/Disp | 39.0 | 40.0 | — | — | — | 29.3 |
| Comfort | — | 13.5 | 5.5 | 5.7 | 11.9 | — |
| Capsize | — | 2.22 | 2.85 | 3.09 | 2.45 | — |
| Hull Speed | — | 5.4 | 5.8 | 5.5 | 5.5 | — |