The Granada 375 is aggressively canvassed for its weight, 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 30.4′, the Granada 375 tops out around 7.4 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √30.4′ LWL = 7.4 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
23.4
Performance-oriented — carries a lot of canvas for its weight.
Ballast / Displacement
38.5%
Stiff enough to carry a big genoa comfortably into moderate breeze.
Displacement / Length
227
Moderate — a good balance of speed and load-carrying ability.
Comfort Ratio
25.1
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
1.96
Below the 2.0 offshore threshold — acceptable for ocean passages.
SA/Disp (Calculated)
14.9
Computed from measured I/J/P/E rather than reported sail area.
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
25.1
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
1.96
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 Granada 375 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
Wasa 38
84s/nm
Nelson 37
93s/nm
Ericson 381
114s/nm
Tartan 38
114s/nm
Ct 38
162s/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° |
3.5 |
4.4 |
4.9 |
5.1 |
| Close Reach60° |
4.2 |
5.3 |
5.9 |
6.2 |
| Beam Reach90° |
5.2 |
6.5 |
7.3 |
7.4 |
| Broad Reach120–135° |
4.8 |
6.0 |
6.7 |
7.0 |
| Run150–180° |
3.8 |
4.8 |
5.4 |
5.6 |
These are simplified estimates based on hull speed (7.4 kts),
SA/D (23.4), 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 Granada 375 — based on sail area, ballast, and displacement characteristics.
Ghost
Sweet Spot
Reef
Heavy
0–5 kts
5–16 kts
16–24 kts
24+ kts
Ghosting
0–5 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
5–16 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
16–24 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
24+ 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 Granada 375.
|
Granada 375 |
Ct 38 |
Ericson 381 |
Nelson 37 |
Tartan 38 |
Wasa 38 |
| Dimensions |
| LOA |
37.4 |
37.3 |
37.5 |
37.4 |
37.3 |
37.3 |
| LWL |
30.4 |
32.5 |
30.5 |
30.4 |
28.5 |
28.5 |
| Beam |
11.9 |
11.8 |
12.0 |
11.2 |
11.8 |
11.6 |
| Displacement |
14 |
29 |
14 |
17 |
15 |
11 |
| Ballast |
5 |
9 |
6 |
6 |
7 |
4 |
| Sail Area |
861 |
— |
678 |
553 |
667 |
646 |
| Performance |
| PHRF |
— |
162 |
114 |
93 |
114 |
84 |
| SA/Disp |
23.4 |
— |
18.4 |
13.1 |
17.5 |
21.0 |
| Bal/Disp |
38.5 |
31.3 |
43.8 |
36.3 |
— |
— |
| Comfort |
25.1 |
— |
24.9 |
33.8 |
28.4 |
20.9 |
| Capsize |
1.96 |
— |
1.98 |
1.72 |
1.90 |
2.09 |
| Hull Speed |
7.4 |
— |
7.4 |
7.4 |
7.2 |
7.2 |