The Hylas 56 is well-powered with enough sail area to move in light air, with a gentle bluewater motion.
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 46.0′, the Hylas 56 tops out around 9.1 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √46.0′ LWL = 9.1 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
21.5
Powerful cruiser/racer — quick in light air, reef early when it pipes up.
Ballast / Displacement
39.9%
Stiff enough to carry a big genoa comfortably into moderate breeze.
Displacement / Length
230
Moderate — a good balance of speed and load-carrying ability.
Comfort Ratio
40.5
Very comfortable in a seaway — a genuine bluewater motion.
Capsize Screening
1.72
Below the 2.0 offshore threshold — acceptable for ocean passages.
Pounds/Inch Immersion
2lbs
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
40.5
Very comfortable in a seaway — a genuine bluewater motion.
Under 20 — Snappy, racing motion
20–30 — Acceptable coastal
30–40 — Good offshore comfort
Over 40 — Very comfortable offshore
Capsize Screening Formula
1.72
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 Hylas 56 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
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° |
4.1 |
5.2 |
5.8 |
6.0 |
| Close Reach60° |
4.9 |
6.2 |
7.0 |
7.3 |
| Beam Reach90° |
6.1 |
7.7 |
8.6 |
8.9 |
| Broad Reach120–135° |
5.6 |
7.1 |
7.9 |
8.2 |
| Run150–180° |
4.5 |
5.7 |
6.3 |
6.6 |
These are simplified estimates based on hull speed (9.1 kts),
SA/D (21.5), 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 Hylas 56 — based on sail area, ballast, and displacement characteristics.
Ghost
Sweet Spot
Reef
Heavy
0–6 kts
6–18 kts
18–26 kts
26+ kts
Ghosting
0–6 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
6–18 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
18–26 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
26+ 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 Hylas 56.
|
Hylas 56 |
Amel 50 |
Hallberg Rassy 53 |
Oyster 53 Holman Pye |
Swan 53 2 |
Swan 54 |
| Dimensions |
| LOA |
54.1 |
54.1 |
— |
53.0 |
54.1 |
54.1 |
| LWL |
46.0 |
47.6 |
43.8 |
44.7 |
47.2 |
47.2 |
| Beam |
15.8 |
15.7 |
15.2 |
15.8 |
15.6 |
15.6 |
| Displacement |
50 |
41 |
50 |
40 |
48 |
48 |
| Ballast |
20 |
11 |
19 |
16 |
18 |
18 |
| Sail Area |
1 |
1,356 |
1 |
1 |
— |
1 |
| Performance |
| PHRF |
— |
— |
— |
— |
44 |
— |
| SA/Disp |
21.5 |
18.2 |
16.5 |
16.8 |
— |
18.6 |
| Bal/Disp |
39.9 |
28.6 |
39.1 |
40.4 |
37.3 |
37.3 |
| Comfort |
40.5 |
32.9 |
— |
34.0 |
— |
39.3 |
| Capsize |
1.72 |
1.82 |
1.65 |
1.83 |
— |
1.71 |
| Hull Speed |
9.1 |
9.2 |
8.9 |
9.0 |
— |
9.2 |