AILE BLANCHE — ORC Rating

GPH

673.7

OSN

653.3

LOA

9.5 m

Displacement

4107 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6745

Medium

0.9225

High

1.0592

Triple Offshore

Low

0.8689

Medium

1.1354

High

1.2655

Boat Specifications

Dimensions

Length overall: 9.5 m
Beam: 3.23 m
Draft: 1.94 m
Displacement: 4107 kg
Crew weight: 450 kg
Wetted surface: 22.55 m²

Sails

Mainsail: 26.16 m²
Genoa: 29.36 m²
Spinnaker: 57.83 m²
Asymmetric spinnaker: 63.01 m²

Design

Type: FIRST 31.7
Builder: BENETEAU
Designer: FINOT
Year built: 1998

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.

6,42.4,4.306286,52,4.82,60,5.07,75,5.27,90,5.21,110,5.23,120,5.05,135,4.53,146.4,3.985971,150,3.84
8,40.7,5.078256,52,5.74,60,6.01,75,6.21,90,6.27,110,6.32,120,6.13,135,5.57,150,4.87,150.7,4.839065
10,40.1,5.713005,52,6.38,60,6.58,75,6.72,90,6.84,110,6.9,120,6.8,135,6.44,150,5.75,152.5,5.625636
12,39.3,6.021915,52,6.66,60,6.83,75,6.99,90,7.09,110,7.25,120,7.17,135,6.92,150,6.49,157.8,6.156368
14,38.7,6.112012,52,6.76,60,6.95,75,7.18,90,7.27,110,7.59,120,7.54,135,7.26,150,6.92,180,6.33
16,38.6,6.141874,52,6.8,60,7,75,7.29,90,7.49,110,7.86,120,7.93,135,7.63,150,7.24,180,6.8
20,39.1,6.159425,52,6.8,60,7.01,75,7.38,90,7.82,110,8.2,120,8.58,135,8.49,150,7.97,180,7.44

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.82	5.07	5.27	5.21	5.23	5.05	4.53	3.84
8	5.74	6.01	6.21	6.27	6.32	6.13	5.57	4.87
10	6.38	6.58	6.72	6.84	6.9	6.8	6.44	5.75
12	6.66	6.83	6.99	7.09	7.25	7.17	6.92	6.49
14	6.76	6.95	7.18	7.27	7.59	7.54	7.26	6.92
16	6.8	7	7.29	7.49	7.86	7.93	7.63	7.24
20	6.8	7.01	7.38	7.82	8.2	8.58	8.49	7.97

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.18	146.4°	3.32
8	40.7°	3.85	150.7°	4.22
10	40.1°	4.37	152.5°	4.99
12	39.3°	4.66	157.8°	5.7
14	38.7°	4.77	180°	6.33
16	38.6°	4.8	180°	6.8
20	39.1°	4.78	180°	7.44

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