The Bacchant Iv is moderately powered for comfortable coastal cruising, with a steady, comfortable ride offshore.
Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 26.1′, the Bacchant Iv tops out around 6.8 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √26.1′ LWL = 6.8 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
SA / Displacement
15.2
Moderate sail power — a capable coastal cruiser, not overpowered.
Ballast / Displacement
42.0%
Stiff enough to carry a big genoa comfortably into moderate breeze.
Displacement / Length
311
Moderate-heavy — carries provisions well, deliberate in light air.
Comfort Ratio
35.3
Good offshore comfort — steady enough for multi-day passages.
Capsize Screening
1.56
Below the 2.0 offshore threshold — acceptable for ocean passages.
Pounds/Inch Immersion
839lbs
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
35.3
Good offshore comfort — steady enough for multi-day passages.
Under 20 — Snappy, racing motion
20–30 — Acceptable coastal
30–40 — Good offshore comfort
Over 40 — Very comfortable offshore
Capsize Screening Formula
1.56
Below the 2.0 offshore threshold — acceptable for ocean passages.
Under 2.0 — Acceptable for offshore
Over 2.0 — Coastal / protected waters
PHRF Fleet Position
Where the Bacchant Iv sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
Swan 36
144s/nm
Rival 36
150s/nm
Columbia 36
162s/nm
Estimated Speed by Wind
Rough boat speed estimates at different true wind speeds and points of sail — derived from hull speed, SA/D, and displacement, not measured polars.
| Point of Sail |
6 kts TWS |
10 kts TWS |
15 kts TWS |
20 kts TWS |
| Close-hauled40–50° |
2.6 |
3.3 |
3.6 |
3.8 |
| Close Reach60° |
3.1 |
4.0 |
4.4 |
4.6 |
| Beam Reach90° |
3.8 |
4.8 |
5.4 |
5.6 |
| Broad Reach120–135° |
3.5 |
4.5 |
5.0 |
5.2 |
| Run150–180° |
2.8 |
3.6 |
4.0 |
4.2 |
These are simplified estimates based on hull speed (6.8 kts),
SA/D (15.2), and empirical efficiency curves — not instrument-measured
polars. Real-world speed varies with sea state, bottom condition, sail trim, and current.
Speeds in gold approach hull speed;
bold gold means near or at hull speed.
Wind Range & Comfort Envelope
Estimated wind ranges for comfortable sailing on the Bacchant Iv — based on sail area, ballast, and displacement characteristics.
Ghost
Sweet Spot
Reef
Heavy
0–7 kts
7–22 kts
22–32 kts
32+ kts
Ghosting
0–7 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
7–22 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
22–32 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
32+ kts
Storm conditions. Storm jib or bare poles. Seek shelter if coastal.
How It Compares
Side-by-side with the boats most often cross-shopped against the Bacchant Iv.
|
Bacchant Iv |
Clipper 36 Cheoy Lee |
Columbia 36 |
Pilot 35 Hinckley |
Rival 36 |
Swan 36 |
| Dimensions |
| LOA |
35.7 |
35.6 |
35.8 |
35.8 |
35.8 |
35.7 |
| LWL |
26.1 |
25.0 |
27.8 |
25.0 |
27.2 |
25.9 |
| Beam |
9.0 |
10.8 |
10.5 |
9.5 |
11.0 |
9.7 |
| Displacement |
12 |
16 |
12 |
13 |
14 |
14 |
| Ballast |
5 |
5 |
5 |
4 |
5 |
7 |
| Sail Area |
506 |
635 |
556 |
550 |
573 |
546 |
| Performance |
| PHRF |
— |
— |
162 |
— |
150 |
144 |
| SA/Disp |
15.2 |
15.9 |
17.0 |
15.4 |
15.7 |
14.9 |
| Bal/Disp |
42.0 |
33.1 |
41.7 |
33.6 |
39.2 |
55.5 |
| Comfort |
35.3 |
37.7 |
26.8 |
37.4 |
30.4 |
37.2 |
| Capsize |
1.56 |
1.70 |
1.84 |
1.59 |
1.82 |
1.60 |
| Hull Speed |
6.8 |
6.7 |
7.1 |
6.7 |
7.0 |
6.8 |