The Alerion Express 33 is well-powered with enough sail area to move in light air, with acceptable motion comfort for coastal passages, and respectable in club racing.
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 26.3′, the Alerion Express 33 tops out around 6.9 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √26.3′ LWL = 6.9 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
PHRF Rating
120s/nm
Cruiser/racer — competitive in club racing, comfortable cruising.
SA / Displacement
18.8
Powerful cruiser/racer — quick in light air, reef early when it pipes up.
Ballast / Displacement
37.9%
Typical cruising ballast — balanced stability and motion underway.
Displacement / Length
213
Moderate — a good balance of speed and load-carrying ability.
Comfort Ratio
24.5
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
1.80
Below the 2.0 offshore threshold — acceptable for ocean passages.
Pounds/Inch Immersion
5lbs
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
24.5
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
1.80
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 Alerion Express 33 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
Tartan 101
78s/nm
Tripp 33
81s/nm
X 332
117s/nm
Alerion Express 33
120s/nm
Cruiser/racer — competitive in club racing, comfortable cruising.
C&C 33
120s/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° |
2.9 |
3.6 |
4.1 |
4.2 |
| Close Reach60° |
3.5 |
4.4 |
4.9 |
5.1 |
| Beam Reach90° |
4.3 |
5.4 |
6.0 |
6.3 |
| Broad Reach120–135° |
3.9 |
5.0 |
5.6 |
5.8 |
| Run150–180° |
3.2 |
4.0 |
4.5 |
4.6 |
These are simplified estimates based on hull speed (6.9 kts),
SA/D (18.8), 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 Alerion Express 33 — 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 Alerion Express 33.
|
Alerion Express 33 |
C&C 33 |
Cal 33 Hunt |
Tartan 101 |
Tripp 33 |
X 332 |
| Dimensions |
| LOA |
33.0 |
33.0 |
33.0 |
33.0 |
33.0 |
33.0 |
| LWL |
26.3 |
— |
27.5 |
29.8 |
28.0 |
28.9 |
| Beam |
9.3 |
— |
11.3 |
11.0 |
10.3 |
10.8 |
| Displacement |
8 |
— |
10 |
8 |
6 |
9 |
| Ballast |
3 |
— |
4 |
3 |
2 |
3 |
| Sail Area |
495 |
— |
553 |
671 |
— |
— |
| Performance |
| PHRF |
120 |
120 |
— |
78 |
81 |
117 |
| SA/Disp |
18.8 |
— |
18.2 |
26.7 |
— |
— |
| Bal/Disp |
37.9 |
— |
41.4 |
— |
44.3 |
41.4 |
| Comfort |
24.5 |
— |
22.6 |
16.8 |
— |
— |
| Capsize |
1.80 |
— |
2.05 |
2.18 |
— |
— |
| Hull Speed |
6.9 |
— |
7.0 |
7.3 |
— |
— |