The Etap 35I is with acceptable motion comfort for coastal passages.
Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
7.2 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 29.0′, the Etap 35I tops out around 7.2 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √29.0′ LWL = 7.2 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
Ballast / Displacement
33.5%
Typical cruising ballast — balanced stability and motion underway.
Displacement / Length
210
Moderate — a good balance of speed and load-carrying ability.
Comfort Ratio
22.2
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
2.05
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Hull Speed
7.2kts
S# (Speed Number)
2.5
Pounds/Inch Immersion
1lbs
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
22.2
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Under 20 — Snappy, racing motion
20–30 — Acceptable coastal
30–40 — Good offshore comfort
Over 40 — Very comfortable offshore
Capsize Screening Formula
2.05
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Under 2.0 — Acceptable for offshore
Over 2.0 — Coastal / protected waters
PHRF Fleet Position
Where the Etap 35I sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Jeanneau One Design 35
Ericson 34 2
Sadler 34
How It Compares
Side-by-side with the boats most often cross-shopped against the Etap 35I.
| Etap 35I | Bavaria 35 Exclusive | Ericson 34 2 | Etap 34S | Jeanneau One Design 35 | Sadler 34 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 34.8 | 34.9 | 34.8 | 34.9 | 34.8 | 34.8 |
| LWL | 29.0 | 29.4 | 29.0 | 29.8 | 29.7 | 27.8 |
| Beam | 11.5 | 11.3 | 11.3 | 11.6 | 11.5 | 10.8 |
| Displacement | 11 | 11 | 13 | 10 | 8 | 12 |
| Ballast | 3 | 3 | 5 | 3 | 2 | 5 |
| Sail Area | — | 769 | 595 | 680 | 588 | 496 |
| Performance | ||||||
| PHRF | — | — | 144 | — | 84 | 173 |
| SA/Disp | — | 24.6 | 17.3 | 23.5 | 23.5 | 14.6 |
| Bal/Disp | 33.5 | 35.3 | 40.0 | 32.0 | 34.1 | 39.1 |
| Comfort | 22.2 | 22.1 | 25.8 | 19.0 | 15.5 | 28.0 |
| Capsize | 2.05 | 2.02 | 1.93 | 2.15 | 2.29 | 1.84 |
| Hull Speed | 7.2 | 7.3 | 7.2 | 7.3 | 7.3 | 7.1 |