The Rival 41 is moderately powered for comfortable coastal cruising, with a steady, comfortable ride offshore, designed for cruising comfort rather than 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 32.7′, the Rival 41 tops out around 7.7 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √32.7′ LWL = 7.7 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
156s/nm
Typical cruiser — designed for comfort and ease, not podium finishes.
SA / Displacement
16.1
Moderate sail power — a capable coastal cruiser, not overpowered.
Comfort Ratio
34.9
Good offshore comfort — steady enough for multi-day passages.
Capsize Screening
1.74
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
34.9
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
1.74
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 Rival 41 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
Tartan 41
102s/nm
Newport 41
113s/nm
Oyster 406
117s/nm
Coronado 41
138s/nm
Rival 41
156s/nm
Typical cruiser — designed for comfort and ease, not podium finishes.
Columbia 41
180s/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° |
3.0 |
3.8 |
4.2 |
4.4 |
| Close Reach60° |
3.6 |
4.5 |
5.1 |
5.3 |
| Beam Reach90° |
4.4 |
5.6 |
6.2 |
6.5 |
| Broad Reach120–135° |
4.1 |
5.1 |
5.8 |
6.0 |
| Run150–180° |
3.3 |
4.1 |
4.6 |
4.8 |
These are simplified estimates based on hull speed (7.7 kts),
SA/D (16.1), 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 Rival 41 — based on sail area, ballast, and displacement characteristics.
Ghost
Sweet Spot
Reef
Heavy
0–7 kts
7–20 kts
20–28 kts
28+ kts
Ghosting
0–7 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
7–20 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
20–28 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
28+ 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 Rival 41.
|
Rival 41 |
Columbia 41 |
Coronado 41 |
Newport 41 |
Oyster 406 |
Tartan 41 |
| Dimensions |
| LOA |
40.6 |
40.5 |
40.5 |
40.7 |
40.5 |
40.6 |
| LWL |
32.7 |
32.0 |
31.7 |
30.0 |
34.8 |
32.7 |
| Beam |
12.2 |
11.3 |
11.3 |
11.2 |
12.8 |
12.3 |
| Displacement |
22 |
20 |
19 |
17 |
20 |
17 |
| Ballast |
9 |
8 |
8 |
8 |
— |
9 |
| Sail Area |
788 |
639 |
639 |
— |
— |
725 |
| Performance |
| PHRF |
156 |
180 |
138 |
113 |
117 |
102 |
| SA/Disp |
16.1 |
13.7 |
14.2 |
— |
— |
17.1 |
| Bal/Disp |
— |
41.5 |
— |
46.8 |
— |
51.5 |
| Comfort |
34.9 |
36.5 |
35.0 |
— |
— |
28.0 |
| Capsize |
1.74 |
1.65 |
1.68 |
— |
— |
1.88 |
| Hull Speed |
7.7 |
7.6 |
7.5 |
— |
— |
7.7 |