The Aloha 34 is moderately powered for comfortable coastal cruising, 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 28.7′, the Aloha 34 tops out around 7.2 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √28.7′ LWL = 7.2 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
15.0
Moderate sail power — a capable coastal cruiser, not overpowered.
Ballast / Displacement
34.6%
Typical cruising ballast — balanced stability and motion underway.
Displacement / Length
258
Moderate-heavy — carries provisions well, deliberate in light air.
Comfort Ratio
27.9
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
1.88
Below the 2.0 offshore threshold — acceptable for ocean passages.
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
27.9
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
1.88
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 Aloha 34 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
Sabre 34
132s/nm
Catalina 34
150s/nm
Oday 34
153s/nm
Ericson 34
159s/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 |
4.1 |
4.6 |
4.8 |
| Beam Reach90° |
4.0 |
5.0 |
5.6 |
5.9 |
| Broad Reach120–135° |
3.7 |
4.7 |
5.2 |
5.4 |
| Run150–180° |
2.9 |
3.7 |
4.2 |
4.3 |
These are simplified estimates based on hull speed (7.2 kts),
SA/D (15.0), 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 Aloha 34 — 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 Aloha 34.
|
Aloha 34 |
Catalina 34 |
Ericson 34 |
Formosa 34 |
Oday 34 |
Sabre 34 |
| Dimensions |
| LOA |
34.0 |
34.0 |
34.1 |
34.0 |
34.0 |
34.2 |
| LWL |
28.7 |
29.3 |
28.9 |
29.5 |
28.8 |
26.3 |
| Beam |
11.2 |
11.9 |
10.8 |
11.8 |
11.3 |
10.5 |
| Displacement |
13 |
11 |
10 |
13 |
11 |
11 |
| Ballast |
4 |
5 |
5 |
4 |
4 |
4 |
| Sail Area |
531 |
514 |
494 |
— |
524 |
506 |
| Performance |
| PHRF |
— |
150 |
159 |
— |
153 |
132 |
| SA/Disp |
15.0 |
15.7 |
17.1 |
— |
16.5 |
16.0 |
| Bal/Disp |
34.6 |
41.8 |
50.0 |
30.9 |
— |
— |
| Comfort |
27.9 |
22.0 |
21.5 |
25.4 |
23.3 |
26.9 |
| Capsize |
1.88 |
2.09 |
2.00 |
1.99 |
2.00 |
1.87 |
| Hull Speed |
7.2 |
7.3 |
7.2 |
7.3 |
7.2 |
6.9 |