The Diva 45 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 36.6′, the Diva 45 tops out around 8.1 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √36.6′ LWL = 8.1 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
SA / Displacement
22.8
Performance-oriented — carries a lot of canvas for its weight.
Comfort Ratio
21.4
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
2.04
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
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
2.04
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 Diva 45 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
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° |
3.8 |
4.8 |
5.3 |
5.5 |
| Close Reach60° |
4.5 |
5.7 |
6.4 |
6.7 |
| Beam Reach90° |
5.6 |
7.0 |
7.9 |
8.1 |
| Broad Reach120–135° |
5.2 |
6.5 |
7.3 |
7.6 |
| Run150–180° |
4.1 |
5.2 |
5.8 |
6.1 |
These are simplified estimates based on hull speed (8.1 kts),
SA/D (22.8), 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 Diva 45 — 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 Diva 45.
|
Diva 45 |
Contest 41 |
First 41S5 Beneteau |
J/41 |
Passport 41 |
Sweden Yachts 41 |
| Dimensions |
| LOA |
41.2 |
41.0 |
41.3 |
41.3 |
41.3 |
41.0 |
| LWL |
36.6 |
32.5 |
33.6 |
34.5 |
33.4 |
32.7 |
| Beam |
12.7 |
12.7 |
12.8 |
13.1 |
12.7 |
12.8 |
| Displacement |
15 |
27 |
16 |
17 |
22 |
18 |
| Ballast |
7 |
9 |
5 |
7 |
8 |
8 |
| Sail Area |
880 |
— |
745 |
792 |
— |
— |
| Performance |
| PHRF |
— |
— |
— |
— |
132 |
— |
| SA/Disp |
22.8 |
— |
18.2 |
17.8 |
— |
— |
| Bal/Disp |
— |
33.5 |
34.2 |
41.2 |
37.3 |
43.5 |
| Comfort |
21.4 |
40.8 |
24.4 |
31.9 |
— |
— |
| Capsize |
2.04 |
1.69 |
1.99 |
1.60 |
— |
— |
| Hull Speed |
8.1 |
7.6 |
7.8 |
9.4 |
— |
— |