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3data points analyzed by Sailpages.com to compile this BIANCA 320 buyer’s report
BIANCA 320

BIANCA 320

Bianca Yachts🇩🇰· Design: Elvstrøm & Kjærulff
$77,164 avg$21,492 – $105,000 (3 listings)from 1985
$1.6K – $4.3K est. annual maintenance
Offshore CruisermonoFractional SloopFin

Specifications

Hull

LOA31.99 ft
LWL25.59 ft
Beam10.5 ft
Draft5.58 ft
Displacement9,259.42 lb
Ballast4,409.3 lb
Hull speed1.34·√LWL6.8 kn

About the BIANCA 320

Also available with a masthead rig. Specifications are from various sources and not confirmed.

Sailpages Buyer's Take

The Bianca 320 is a Danish-built cruising sloop designed by Elvstrøm & Kjærulff and constructed by Bianca Yachts. Production records indicate the model was built in 1985, with the total number of hulls built remaining unconfirmed in available data.

Best for:
This vessel is well-suited for coastal cruisers and weekend sailors seeking a manageable, moderate-displacement boat. Its fractional sloop rig and 31.99 ft LOA make it accessible for couples or small families prioritizing ease of handling over extreme performance.
Bluewater capability:
With a displacement of 9259.42 lb and a capsize ratio of 2.0, the Bianca 320 offers reasonable stability for coastal passages, though its fin keel and moderate ballast ratio suggest it is best suited for protected waters rather than extended bluewater voyaging.
Comparables:
Comparable boats from this era include the Beneteau First 323 and the O'Day 32, which share similar fractional sloop rigs and moderate displacement profiles. These vessels offer similar coastal cruising capabilities and cabin layouts typical of mid-1980s European and American production yachts.

Performance

Comfort22.7
Capsize2.00
SA/Disp17.5
Disp/Len247
Bal/Disp47.6

ORC Performance Data(1 certificate)

Measured performance data from ORC (Offshore Racing Congress) certificates.

Polar Diagram

24680°30°60°90°120°150°180°WIND
6kn8kn10kn12kn14kn16kn20knbeat VMGrun VMG

Boat speed (kn) vs. true wind angle. Source: ORC

Racing Ratings

GPH698.6 s/miOSN

Triple Number

LowMedHighOffshore0.83971.09141.2304Inshore0.64700.88851.0374

ORC Measured

Displacement4401 kg (9704 lb)

Sail Areas (ORC)

Main28.9 m² (311 ft²)Genoa31.0 m² (334 ft²)Spinnaker60.4 m² (650 ft²)

Speed Table (kn)

TWA \ TWS681012141620
52°4.75.66.26.56.66.76.7
60°5.05.96.46.76.86.97.0
75°5.36.26.66.87.07.27.4
90°5.36.16.66.97.17.37.7
110°5.06.06.66.97.27.68.0
120°4.85.96.56.87.17.48.1
135°4.35.36.16.66.97.27.8
150°3.74.75.56.26.66.97.5
Beat VMG3.13.74.14.54.64.74.8
Run VMG3.24.14.85.66.26.67.2

Estimated Value

Limited Data
Based on 2 listings
Low
$81,585
Estimated Value
$81,585
High
$81,585
Inflation-adjusted to 2026 USD

Estimated Cost of Ownership

Based on 31.99ft LOA. Actual costs vary by condition, usage, and local rates.

$/ft/mo
Annual Maintenance
$1.6K – $4.3K
Hull, rigging, sails, engine service
Annual Docking
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Known Issues & Pre-Purchase Inspection

We don't have enough data on the BIANCA 320yet to publish model-specific findings we'd stand behind — but here's a free general inspection checklist, built from our research into what actually goes wrong on boats of this kind.

Drawn from 7,029 documented issues across 2,391 models, ordered so the areas that most often turn up problems come first.

1Structural & Bulkheads9732Standing Rigging6403Deck & Topsides6404Keel & Keel Bolts5535Rudder & Steering5086Hull & Bottom377
Free general pre-purchase checklist
25 survey areas — hull, keel, rig, engine, electrical and more. Take it aboard when you view any boat.

Own a BIANCA 320? Reports from owners are what turn this into a model-specific checklist — and they're the reason the boats above it have one.

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Which engine powers your BIANCA 320?

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Used sails that fit the BIANCA 320

Checking eBay for sails sized to this boat's rig…