BIANCA II — ORC Rating

GPH

623

OSN

606.1

LOA

8.46 m

Displacement

1492 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6619

Medium

0.871

High

0.9958

Triple Offshore

Low

0.8514

Medium

1.0781

High

1.2317

Boat Specifications

Dimensions

Length overall: 8.46 m
Beam: 2.88 m
Draft: 1.82 m
Displacement: 1492 kg
Crew weight: 400 kg
Wetted surface: 15.16 m²

Sails

Mainsail: 23.12 m²
Genoa: 20.7 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 66.73 m²

Design

Type: REFLEX 28
Builder: HARLEY
Designer: STIMSON YACHT
Year built: 1997

Velocity Prediction

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into WX Navigator or compatible navigation software.

6,42.8,4.74289,52,5.32,60,5.65,75,5.9,90,5.82,110,5.88,120,5.72,135,5.08,144,4.585812,150,4.28
8,41.6,5.656607,52,6.24,60,6.43,75,6.58,90,6.63,110,6.76,120,6.68,135,6.29,146,5.6451,150,5.41
10,38.6,6.039509,52,6.64,60,6.81,75,6.99,90,7.02,110,7.42,120,7.34,135,6.94,149.8,6.329006,150,6.32
12,37.5,6.176315,52,6.83,60,7.09,75,7.43,90,7.52,110,8,120,8.12,135,7.63,150,6.86,150.5,6.824796
14,37.1,6.218781,52,6.93,60,7.25,75,7.8,90,8.07,110,8.43,120,8.9,135,8.48,146.5,7.686904,150,7.4
16,37.1,6.256395,52,6.98,60,7.34,75,7.99,90,8.57,110,8.9,120,9.44,135,9.5,144,8.714279,150,8.14
20,37.5,6.289757,52,7.02,60,7.38,75,8.16,90,9.12,110,9.8,120,10.57,135,11.98,141.4,11.464831,150,10.34

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.32	5.65	5.9	5.82	5.88	5.72	5.08	4.28
8	6.24	6.43	6.58	6.63	6.76	6.68	6.29	5.41
10	6.64	6.81	6.99	7.02	7.42	7.34	6.94	6.32
12	6.83	7.09	7.43	7.52	8	8.12	7.63	6.86
14	6.93	7.25	7.8	8.07	8.43	8.9	8.48	7.4
16	6.98	7.34	7.99	8.57	8.9	9.44	9.5	8.14
20	7.02	7.38	8.16	9.12	9.8	10.57	11.98	10.34

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.48	144°	3.71
8	41.6°	4.23	146°	4.68
10	38.6°	4.72	149.8°	5.47
12	37.5°	4.9	150.5°	5.94
14	37.1°	4.96	146.5°	6.41
16	37.1°	4.99	144°	7.05
20	37.5°	4.99	141.4°	8.96

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