L'ILE BLANCHE — ORC Rating

GPH

744.9

OSN

721.8

LOA

9.2 m

Displacement

3050 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5356

Medium

0.7346

High

0.8318

Triple Offshore

Low

0.6943

Medium

0.9159

High

1.0157

Boat Specifications

Dimensions

Length overall: 9.2 m
Beam: 3.13 m
Draft: 1.36 m
Displacement: 3050 kg
Crew weight: 280 kg
Wetted surface: 17.29 m²

Sails

Mainsail: 17.7 m²
Genoa: 29.19 m²
Spinnaker: 59.8 m²
Asymmetric spinnaker: 54.29 m²

Design

Type: Rush 31
Builder: Jeanneau
Designer: Holland
Year built: 1979
Stability index: 123.1

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.

6,45.6,3.844706,52,4.22,60,4.52,75,4.75,90,4.7,110,4.79,120,4.64,135,4.23,147.8,3.722554,150,3.63
8,44.2,4.561238,52,5.05,60,5.38,75,5.64,90,5.7,110,5.86,120,5.72,135,5.25,150,4.62,151.1,4.580425
10,44.2,5.161034,52,5.69,60,5.97,75,6.17,90,6.31,110,6.43,120,6.37,135,6.09,150,5.5,152,5.402359
12,43.8,5.528152,52,6.03,60,6.25,75,6.44,90,6.6,110,6.8,120,6.76,135,6.54,150,6.18,158.3,5.865686
14,43.5,5.624682,52,6.14,60,6.38,75,6.63,90,6.76,110,7.13,120,7.14,135,6.91,150,6.57,171.8,6.082183
16,43.6,5.647831,52,6.18,60,6.43,75,6.77,90,6.96,110,7.41,120,7.48,135,7.29,150,6.92,178.4,6.442512
20,45.3,5.615624,52,6.12,60,6.42,75,6.87,90,7.29,110,7.76,120,8.08,135,8.03,150,7.63,178.1,7.083895

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.22	4.52	4.75	4.7	4.79	4.64	4.23	3.63
8	5.05	5.38	5.64	5.7	5.86	5.72	5.25	4.62
10	5.69	5.97	6.17	6.31	6.43	6.37	6.09	5.5
12	6.03	6.25	6.44	6.6	6.8	6.76	6.54	6.18
14	6.14	6.38	6.63	6.76	7.13	7.14	6.91	6.57
16	6.18	6.43	6.77	6.96	7.41	7.48	7.29	6.92
20	6.12	6.42	6.87	7.29	7.76	8.08	8.03	7.63

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.6°	2.69	147.8°	3.15
8	44.2°	3.27	151.1°	4.01
10	44.2°	3.7	152°	4.77
12	43.8°	3.99	158.3°	5.45
14	43.5°	4.08	171.8°	6.02
16	43.6°	4.09	178.4°	6.44
20	45.3°	3.95	178.1°	7.08

Loading polar chart…