The Luna 24 is aggressively canvassed for its weight, with a quick, snappy motion best suited to day sailing, 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 18.5′, the Luna 24 tops out around 5.8 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √18.5′ LWL = 5.8 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
183s/nm
Typical cruiser — designed for comfort and ease, not podium finishes.
SA / Displacement
26.1
Performance-oriented — carries a lot of canvas for its weight.
Comfort Ratio
9.7
Quick, snappy motion — better for day sails and racing than long passages.
Capsize Screening
2.57
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Pounds/Inch Immersion
543lbs
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
9.7
Quick, snappy motion — better for day sails and racing than long passages.
Under 20 — Snappy, racing motion
20–30 — Acceptable coastal
30–40 — Good offshore comfort
Over 40 — Very comfortable offshore
Capsize Screening Formula
2.57
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 Luna 24 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Cruiser/Racer 90–150
Cruiser 150–210
Heavy Cruiser 210–300
Luna 24
183s/nm
Typical cruiser — designed for comfort and ease, not podium finishes.
Captiva 240
222s/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° |
2.7 |
3.4 |
3.8 |
4.0 |
| Close Reach60° |
3.3 |
4.2 |
4.6 |
4.8 |
| Beam Reach90° |
4.0 |
5.1 |
5.7 |
5.8 |
| Broad Reach120–135° |
3.7 |
4.7 |
5.3 |
5.5 |
| Run150–180° |
3.0 |
3.8 |
4.2 |
4.4 |
These are simplified estimates based on hull speed (5.8 kts),
SA/D (26.1), 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 Luna 24 — 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 Luna 24.
|
Luna 24 |
Cal 2 24 |
Captiva 240 |
Chance 24 |
Neptune 24 Cb |
Tonic 23 Cb Jeanneau |
| Dimensions |
| LOA |
23.9 |
24.0 |
24.0 |
24.0 |
24.0 |
23.9 |
| LWL |
18.5 |
19.2 |
20.5 |
19.9 |
21.0 |
20.3 |
| Beam |
8.2 |
7.8 |
8.2 |
7.9 |
8.0 |
8.3 |
| Displacement |
2 |
3 |
2 |
2 |
3 |
2 |
| Ballast |
970 |
1 |
1 |
1 |
1 |
1 |
| Sail Area |
266 |
271 |
280 |
275 |
250 |
248 |
| Performance |
| PHRF |
183 |
— |
222 |
— |
— |
— |
| SA/Disp |
26.1 |
18.2 |
25.1 |
26.9 |
18.5 |
19.5 |
| Bal/Disp |
— |
37.8 |
41.7 |
61.3 |
37.5 |
37.1 |
| Comfort |
9.7 |
18.1 |
10.5 |
9.8 |
14.2 |
12.7 |
| Capsize |
2.57 |
2.01 |
2.44 |
2.46 |
2.17 |
2.31 |
| Hull Speed |
5.8 |
5.9 |
6.1 |
6.0 |
6.1 |
6.0 |