The Py 90 is with a quick, snappy motion best suited to day sailing.
Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
6.7 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
Displacement / Length
140
Ultralight — responsive and fast, but carries less stores.
Comfort Ratio
12.6
Quick, snappy motion — better for day sails and racing than long passages.
Hull Speed
6.7kts
Pounds/Inch Immersion
6lbs
Weight needed to sink the hull one inch — loading sensitivity.
Motion & Offshore Suitability
Two ratios that matter most when you're planning passages — how the boat feels in a seaway, and whether the hull geometry is suitable for open ocean.
Comfort Ratio
12.6
Quick, snappy motion — better for day sails and racing than long passages.
Under 20 — Snappy, racing motion
20–30 — Acceptable coastal
30–40 — Good offshore comfort
Over 40 — Very comfortable offshore
PHRF Fleet Position
Where the Py 90 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Frers 30
Etap 30
How It Compares
Side-by-side with the boats most often cross-shopped against the Py 90.
| Py 90 | Cc 29 | Deltania 28 S | Etap 30 | Frers 30 | Mustang 30 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 29.5 | 29.6 | 29.5 | 29.6 | 29.5 | 29.5 |
| LWL | — | 23.6 | — | 25.1 | 26.0 | 23.2 |
| Beam | 10.5 | 10.3 | 9.5 | 10.3 | 10.9 | 8.1 |
| Displacement | 4 | 7 | 6 | 7 | 6 | 5 |
| Ballast | 1 | 2 | 2 | 3 | 2 | — |
| Sail Area | 546 | 422 | 419 | 403 | 458 | — |
| Performance | ||||||
| PHRF | — | — | — | 186 | 132 | — |
| SA/Disp | — | 17.7 | 20.0 | 16.3 | 20.3 | — |
| Bal/Disp | — | 36.0 | — | — | — | — |
| Comfort | 12.6 | 20.4 | 17.9 | 20.7 | 16.3 | 21.7 |
| Capsize | — | 2.11 | — | 2.07 | 2.30 | 1.82 |
| Hull Speed | 6.7 | 6.5 | 6.7 | 6.7 | 6.8 | 6.5 |