The Puma 37 is well-powered with enough sail area to move in light air, 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 29.5′, the Puma 37 tops out around 7.3 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √29.5′ LWL = 7.3 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
19.3
Powerful cruiser/racer — quick in light air, reef early when it pipes up.
Ballast / Displacement
37.8%
Typical cruising ballast — balanced stability and motion underway.
Displacement / Length
260
Moderate-heavy — carries provisions well, deliberate in light air.
Comfort Ratio
25.5
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
2.03
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
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
25.5
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
2.03
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Under 2.0 — Acceptable for offshore
Over 2.0 — Coastal / protected waters
PHRF Fleet Position
Where the Puma 37 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
Frers 36
93s/nm
Cs 36 Merlin
126s/nm
C&C 36
132s/nm
Sabre 36
144s/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° |
3.1 |
3.9 |
4.4 |
4.6 |
| Close Reach60° |
3.7 |
4.7 |
5.3 |
5.5 |
| Beam Reach90° |
4.6 |
5.8 |
6.5 |
6.8 |
| Broad Reach120–135° |
4.2 |
5.4 |
6.0 |
6.2 |
| Run150–180° |
3.4 |
4.3 |
4.8 |
5.0 |
These are simplified estimates based on hull speed (7.3 kts),
SA/D (19.3), 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 Puma 37 — 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 Puma 37.
|
Puma 37 |
C&C 36 |
Cs 36 Merlin |
Frers 36 |
Sabre 36 |
Sigma 362 |
| Dimensions |
| LOA |
36.0 |
36.0 |
36.0 |
36.0 |
36.0 |
36.0 |
| LWL |
29.5 |
— |
29.2 |
29.5 |
29.3 |
28.0 |
| Beam |
12.5 |
— |
11.5 |
12.0 |
11.3 |
11.5 |
| Displacement |
15 |
— |
13 |
10 |
13 |
12 |
| Ballast |
5 |
— |
5 |
5 |
5 |
5 |
| Sail Area |
732 |
— |
608 |
668 |
610 |
— |
| Performance |
| PHRF |
— |
132 |
126 |
93 |
144 |
— |
| SA/Disp |
19.3 |
— |
17.7 |
21.8 |
17.5 |
— |
| Bal/Disp |
37.8 |
— |
43.0 |
49.5 |
— |
41.6 |
| Comfort |
25.5 |
— |
24.9 |
19.6 |
25.9 |
— |
| Capsize |
2.03 |
— |
1.96 |
2.17 |
1.91 |
— |
| Hull Speed |
7.3 |
— |
7.2 |
7.3 |
7.3 |
— |