Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
5.8 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 19.0′, the Idem tops out around 5.8 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √19.0′ LWL = 5.8 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
8.8%
Light ballast — tends to be tender; reef earlier than the numbers suggest.
Hull Speed
5.8kts
PHRF Fleet Position
Where the Idem sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Contessa 32
Nicholson 32
Chesapeake 32
How It Compares
Side-by-side with the boats most often cross-shopped against the Idem.
| Idem | Chesapeake 32 | Contessa 32 | Eric 32 | Nicholson 32 | Seafair 32 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 32.0 | 32.0 | 32.0 | 32.0 | 32.0 | 32.0 |
| LWL | 19.0 | 22.1 | 24.0 | 27.5 | 24.0 | 28.4 |
| Beam | 8.0 | 8.8 | 9.5 | 11.0 | 9.3 | 8.1 |
| Displacement | 6 | 11 | 9 | 19 | 12 | 8 |
| Ballast | 600 | 3 | 4 | — | 6 | 3 |
| Sail Area | — | 468 | 433 | 588 | 470 | — |
| Performance | ||||||
| PHRF | — | 209 | 174 | — | 189 | — |
| SA/Disp | — | 14.8 | 15.5 | 13.3 | 14.2 | — |
| Bal/Disp | 8.8 | 32.6 | 47.4 | — | 55.7 | — |
| Comfort | — | 39.5 | 27.7 | 41.8 | 36.9 | 26.0 |
| Capsize | — | 1.55 | 1.80 | 1.65 | 1.61 | 1.62 |
| Hull Speed | — | 6.3 | 6.6 | 7.0 | 6.6 | 7.1 |