The Contention 33 Peterson is moderately powered for comfortable coastal cruising, with acceptable motion comfort for coastal passages.
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 28.5′, the Contention 33 Peterson tops out around 7.2 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √28.5′ 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.
SA / Displacement
17.8
Moderate sail power — a capable coastal cruiser, not overpowered.
Ballast / Displacement
45.5%
Race-oriented ballast ratio — very stiff and powerful.
Displacement / Length
179
Moderate — a good balance of speed and load-carrying ability.
Comfort Ratio
21.4
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
1.98
Below the 2.0 offshore threshold — acceptable for ocean passages.
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
21.4
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
1.98
Below the 2.0 offshore threshold — acceptable for ocean passages.
Under 2.0 — Acceptable for offshore
Over 2.0 — Coastal / protected waters
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 |
3.7 |
4.1 |
4.3 |
| Close Reach60° |
3.5 |
4.4 |
5.0 |
5.2 |
| Beam Reach90° |
4.3 |
5.5 |
6.1 |
6.6 |
| Broad Reach120–135° |
4.0 |
5.0 |
5.6 |
6.1 |
| Run150–180° |
3.2 |
4.0 |
4.5 |
4.7 |
These are simplified estimates based on hull speed (7.2 kts),
SA/D (17.8), 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 Contention 33 Peterson — 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 Contention 33 Peterson.
|
Contention 33 Peterson |
Alo 33 |
Cc 33 |
Northshore 33 |
Oe 33 |
X 34 Ton |
| Dimensions |
| LOA |
32.8 |
32.7 |
32.9 |
32.8 |
32.8 |
32.8 |
| LWL |
28.5 |
24.6 |
26.4 |
20.0 |
26.9 |
25.6 |
| Beam |
10.4 |
10.2 |
10.5 |
10.3 |
9.0 |
11.1 |
| Displacement |
9 |
10 |
9 |
9 |
8 |
7 |
| Ballast |
4 |
4 |
4 |
— |
3 |
— |
| Sail Area |
490 |
459 |
502 |
— |
441 |
543 |
| Performance |
| SA/Disp |
17.8 |
15.1 |
17.6 |
— |
17.2 |
22.8 |
| Bal/Disp |
45.5 |
38.8 |
41.6 |
— |
44.8 |
— |
| Comfort |
21.4 |
28.0 |
23.3 |
— |
24.2 |
16.9 |
| Capsize |
1.98 |
1.85 |
1.97 |
— |
1.78 |
2.27 |
| Hull Speed |
7.2 |
6.7 |
6.9 |
— |
7.0 |
6.8 |