The Amigo 27 is modestly canvassed and unhurried, 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 19.7′, the Amigo 27 tops out around 5.9 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √19.7′ LWL = 5.9 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
12.8
Modestly canvassed — a comfortable, unhurried cruiser.
Ballast / Displacement
41.4%
Stiff enough to carry a big genoa comfortably into moderate breeze.
Displacement / Length
374
Heavy displacement — a slow, steady, seakindly hull.
Comfort Ratio
27.3
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
1.81
Below the 2.0 offshore threshold — acceptable for ocean passages.
Pounds/Inch Immersion
589lbs
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
27.3
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
1.81
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 Amigo 27 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Cruiser/Racer 90–150
Cruiser 150–210
Heavy Cruiser 210–300
Irwin 25
207s/nm
Northern 25
225s/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° |
2.1 |
2.6 |
2.9 |
3.1 |
| Close Reach60° |
2.5 |
3.2 |
3.6 |
3.7 |
| Beam Reach90° |
3.1 |
3.9 |
4.4 |
4.5 |
| Broad Reach120–135° |
2.9 |
3.6 |
4.0 |
4.2 |
| Run150–180° |
2.3 |
2.9 |
3.2 |
3.4 |
These are simplified estimates based on hull speed (5.9 kts),
SA/D (12.8), 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 Amigo 27 — based on sail area, ballast, and displacement characteristics.
Ghost
Sweet Spot
Reef
Heavy
0–8 kts
8–24 kts
24–34 kts
34+ kts
Ghosting
0–8 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
8–24 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
24–34 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
34+ 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 Amigo 27.
|
Amigo 27 |
Cal 2 25 |
Contessa 25 Peterson |
Irwin 25 |
Nordic Folkboat |
Northern 25 |
| Dimensions |
| LOA |
25.3 |
25.3 |
25.2 |
25.4 |
25.2 |
25.3 |
| LWL |
19.7 |
22.0 |
21.0 |
20.5 |
19.7 |
19.3 |
| Beam |
8.4 |
9.0 |
9.4 |
8.0 |
7.2 |
8.2 |
| Displacement |
6 |
4 |
4 |
5 |
4 |
5 |
| Ballast |
2 |
2 |
2 |
2 |
2 |
2 |
| Sail Area |
275 |
314 |
350 |
315 |
220 |
— |
| Performance |
| PHRF |
— |
— |
— |
207 |
— |
225 |
| SA/Disp |
12.8 |
18.5 |
20.3 |
16.4 |
13.4 |
— |
| Bal/Disp |
41.4 |
44.4 |
45.7 |
40.7 |
51.8 |
45.1 |
| Comfort |
27.3 |
16.2 |
16.1 |
23.8 |
22.1 |
— |
| Capsize |
1.81 |
2.18 |
2.27 |
1.83 |
1.78 |
— |
| Hull Speed |
5.9 |
6.3 |
6.1 |
6.1 |
5.9 |
— |