Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
6.2 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 21.4′, the Tartan 27 tops out around 6.2 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √21.4′ LWL = 6.2 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
PHRF Rating
234s/nm
Heavy or slow cruiser — all about the journey, not the elapsed time.
Ballast / Displacement
32.4%
Typical cruising ballast — balanced stability and motion underway.
Displacement / Length
336
Moderate-heavy — carries provisions well, deliberate in light air.
Hull Speed
6.2kts
Pounds/Inch Immersion
4lbs
Weight needed to sink the hull one inch — loading sensitivity.
PHRF Fleet Position
Where the Tartan 27 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Cs 27
Pearson 27
Catalina 27
Irwin 27
Tartan 27
Heavy or slow cruiser — all about the journey, not the elapsed time.
How It Compares
Side-by-side with the boats most often cross-shopped against the Tartan 27.
| Tartan 27 | Catalina 27 | Cs 27 | Irwin 27 | Newport 27 1 | Pearson 27 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 27.0 | 26.9 | 27.0 | 27.1 | 27.0 | 26.9 |
| LWL | 21.4 | 23.0 | 23.9 | 20.5 | 21.5 | 22.5 |
| Beam | 8.6 | 9.2 | 9.3 | 8.7 | 9.2 | 9.2 |
| Displacement | 7 | 6 | 6 | 6 | 6 | 5 |
| Ballast | 2 | 2 | 2 | — | 2 | 2 |
| Sail Area | — | 323 | 453 | 356 | 345 | 332 |
| Performance | ||||||
| PHRF | 234 | 207 | 204 | 225 | — | 204 |
| SA/Disp | — | 14.3 | 21.8 | 16.2 | 16.8 | 16.5 |
| Bal/Disp | 32.4 | 39.4 | 39.3 | — | 41.7 | — |
| Comfort | — | 25.0 | 19.4 | 25.6 | 20.9 | 19.7 |
| Capsize | — | 1.86 | 2.05 | 1.85 | 2.02 | 2.04 |
| Hull Speed | — | 6.3 | 6.6 | 6.1 | 6.2 | 6.4 |