The Asso 99 is aggressively canvassed for its weight, with a quick, snappy motion best suited to day sailing.
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.
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
42.0
Performance-oriented — carries a lot of canvas for its weight.
Ballast / Displacement
43.6%
Stiff enough to carry a big genoa comfortably into moderate breeze.
Displacement / Length
51
Ultralight — responsive and fast, but carries less stores.
Comfort Ratio
6.2
Quick, snappy motion — better for day sails and racing than long passages.
Capsize Screening
2.88
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
SA/Disp (Calculated)
39.9
Computed from measured I/J/P/E rather than reported sail area.
Pounds/Inch Immersion
6lbs
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
6.2
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
2.88
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 Asso 99 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
X 99
111s/nm
Cs 33
150s/nm
Tanzer 10
156s/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° |
3.3 |
4.2 |
4.7 |
4.9 |
| Close Reach60° |
4.0 |
5.1 |
5.7 |
5.9 |
| Beam Reach90° |
4.9 |
6.2 |
7.0 |
7.6 |
| Broad Reach120–135° |
4.6 |
5.8 |
6.4 |
7.0 |
| Run150–180° |
3.6 |
4.6 |
5.1 |
5.4 |
These are simplified estimates based on hull speed (7.1 kts),
SA/D (42.0), 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 Asso 99 — based on sail area, ballast, and displacement characteristics.
Ghost
Sweet Spot
Reef
Heavy
0–5 kts
5–18 kts
18–28 kts
28+ kts
Ghosting
0–5 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
5–18 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
18–28 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 Asso 99.
|
Asso 99 |
Cc 33 2 |
Cs 33 |
J32 |
Tanzer 10 |
X 99 |
| Dimensions |
| LOA |
32.7 |
32.6 |
32.7 |
32.6 |
32.7 |
32.7 |
| LWL |
— |
26.2 |
26.4 |
28.8 |
27.5 |
27.7 |
| Beam |
9.7 |
10.5 |
10.7 |
11.0 |
11.9 |
9.7 |
| Displacement |
2 |
9 |
10 |
10 |
13 |
6 |
| Ballast |
1 |
3 |
4 |
3 |
5 |
2 |
| Sail Area |
473 |
511 |
503 |
518 |
379 |
— |
| Performance |
| PHRF |
— |
— |
150 |
— |
156 |
111 |
| SA/Disp |
42.0 |
18.4 |
17.4 |
17.9 |
11.0 |
— |
| Bal/Disp |
43.6 |
42.1 |
42.5 |
38.4 |
— |
45.7 |
| Comfort |
6.2 |
22.7 |
23.3 |
21.2 |
25.7 |
— |
| Capsize |
2.88 |
1.99 |
1.98 |
2.05 |
2.02 |
— |
| Hull Speed |
7.1 |
6.9 |
6.9 |
7.2 |
7.0 |
— |