The Bianca 107 is well-powered with enough sail area to move in light air, with acceptable motion comfort for coastal passages, and respectable in club 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 27.9′, the Bianca 107 tops out around 7.1 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √27.9′ LWL = 7.1 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
PHRF Rating
141s/nm
Cruiser/racer — competitive in club racing, comfortable cruising.
SA / Displacement
19.2
Powerful cruiser/racer — quick in light air, reef early when it pipes up.
Ballast / Displacement
45.4%
Race-oriented ballast ratio — very stiff and powerful.
Displacement / Length
220
Moderate — a good balance of speed and load-carrying ability.
Comfort Ratio
24.0
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
1.91
Below the 2.0 offshore threshold — acceptable for ocean passages.
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
24.0
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
1.91
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 Bianca 107 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
Elite 346
123s/nm
Bianca 107
141s/nm
Cruiser/racer — competitive in club racing, comfortable cruising.
Scanmar 35
165s/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° |
3.0 |
3.8 |
4.2 |
4.4 |
| Close Reach60° |
3.6 |
4.6 |
5.1 |
5.3 |
| Beam Reach90° |
4.4 |
5.6 |
6.3 |
6.6 |
| Broad Reach120–135° |
4.1 |
5.2 |
5.8 |
6.1 |
| Run150–180° |
3.3 |
4.2 |
4.6 |
4.8 |
These are simplified estimates based on hull speed (7.1 kts),
SA/D (19.2), 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 Bianca 107 — based on sail area, ballast, and displacement characteristics.
Ghost
Sweet Spot
Reef
Heavy
0–6 kts
6–20 kts
20–30 kts
30+ kts
Ghosting
0–6 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
6–20 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
20–30 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
30+ 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 Bianca 107.
|
Bianca 107 |
Elite 346 |
First 35 Beneteau |
Scanmar 35 |
Stratus 36 Albin |
X 362 Sport |
| Dimensions |
| LOA |
35.1 |
35.0 |
35.2 |
35.1 |
35.2 |
35.1 |
| LWL |
27.9 |
28.8 |
28.8 |
27.6 |
27.2 |
30.4 |
| Beam |
10.5 |
11.8 |
12.2 |
10.8 |
10.8 |
11.4 |
| Displacement |
10 |
10 |
10 |
10 |
11 |
10 |
| Ballast |
4 |
4 |
4 |
4 |
4 |
4 |
| Sail Area |
581 |
557 |
555 |
— |
565 |
694 |
| Performance |
| PHRF |
141 |
123 |
— |
165 |
— |
— |
| SA/Disp |
19.2 |
18.5 |
18.6 |
— |
17.8 |
22.8 |
| Bal/Disp |
45.4 |
41.6 |
46.3 |
39.4 |
43.3 |
43.9 |
| Comfort |
24.0 |
20.1 |
18.9 |
— |
25.1 |
20.5 |
| Capsize |
1.91 |
2.14 |
2.23 |
— |
1.92 |
2.07 |
| Hull Speed |
7.1 |
7.2 |
7.2 |
— |
7.0 |
7.4 |