The Lapworth 36 L 36 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 28.3′, the Lapworth 36 L 36 tops out around 7.1 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √28.3′ LWL = 7.1 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
PHRF Rating
156s/nm
Typical cruiser — designed for comfort and ease, not podium finishes.
SA / Displacement
17.9
Moderate sail power — a capable coastal cruiser, not overpowered.
Comfort Ratio
30.2
Good offshore comfort — steady enough for multi-day passages.
Capsize Screening
1.66
Below the 2.0 offshore threshold — acceptable for ocean passages.
Pounds/Inch Immersion
962lbs
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
30.2
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
1.66
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 Lapworth 36 L 36 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
Soverel 36 1965
114s/nm
Lapworth 36 L 36
156s/nm
Typical cruiser — designed for comfort and ease, not podium finishes.
Creekmore 36
183s/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 |
3.7 |
4.1 |
4.3 |
| Close Reach60° |
3.5 |
4.4 |
5.0 |
5.2 |
| Beam Reach90° |
4.3 |
5.5 |
6.1 |
6.4 |
| Broad Reach120–135° |
4.0 |
5.0 |
5.6 |
5.9 |
| Run150–180° |
3.2 |
4.0 |
4.5 |
4.7 |
These are simplified estimates based on hull speed (7.1 kts),
SA/D (17.9), 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 Lapworth 36 L 36 — 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 Lapworth 36 L 36.
|
Lapworth 36 L 36 |
Creekmore 36 |
Evergreen Rhodes |
Excalibur 36 |
Soverel 36 1965 |
Winslow 36 |
| Dimensions |
| LOA |
36.0 |
36.0 |
36.0 |
36.0 |
36.0 |
36.0 |
| LWL |
28.3 |
30.0 |
24.0 |
26.3 |
27.5 |
25.0 |
| Beam |
9.5 |
9.7 |
7.3 |
9.9 |
11.0 |
9.5 |
| Displacement |
12 |
14 |
7 |
13 |
12 |
15 |
| Ballast |
— |
5 |
— |
5 |
— |
6 |
| Sail Area |
584 |
— |
472 |
610 |
718 |
584 |
| Performance |
| PHRF |
156 |
183 |
— |
— |
114 |
— |
| SA/Disp |
17.9 |
— |
19.6 |
17.3 |
22.0 |
15.2 |
| Bal/Disp |
— |
35.7 |
— |
40.7 |
— |
— |
| Comfort |
30.2 |
33.1 |
30.0 |
33.8 |
25.3 |
41.7 |
| Capsize |
1.66 |
1.61 |
1.49 |
1.67 |
1.93 |
1.53 |
| Hull Speed |
7.1 |
7.3 |
6.6 |
6.9 |
7.0 |
6.7 |