EIBOL — ORC Rating | RegattaPages

GPH

675.4

OSN

651.8

LOA

9.61 m

Displacement

3965 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5932

Medium

0.821

High

0.956

Triple Offshore

Low

0.7636

Medium

1.0092

High

1.14

Boat Specifications

Dimensions

Length overall: 9.61 m
Beam: 3.21 m
Draft: 1.98 m
Displacement: 3965 kg
Crew weight: 595 kg
Wetted surface: 22.42 m²

Sails

Mainsail: 25.64 m²
Genoa: 27.71 m²
Spinnaker: 61.33 m²
Asymmetric spinnaker: 0 m²

Design

Type: FIRST 31.7
Builder: BENETEAU
Designer: FINOT
Year built: 1998
Stability index: 108.3

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.

6,43.5,4.383943,52,4.86,60,5.1,75,5.25,90,5.12,110,5.09,120,4.92,135,4.4,145.7,3.885736,150,3.71
8,41.5,5.193899,52,5.77,60,6.01,75,6.17,90,6.11,110,6.2,120,6.03,135,5.49,149.6,4.799924,150,4.78
10,39.9,5.709331,52,6.35,60,6.54,75,6.69,90,6.75,110,6.86,120,6.76,135,6.36,150,5.7,152.8,5.565447
12,38.7,6.047945,52,6.68,60,6.85,75,7,90,7.11,110,7.27,120,7.2,135,6.91,150,6.44,157.7,6.106724
14,38.2,6.197057,52,6.86,60,7.04,75,7.23,90,7.31,110,7.63,120,7.58,135,7.3,150,6.93,169.4,6.368679
16,37.8,6.239282,52,6.94,60,7.14,75,7.42,90,7.54,110,7.94,120,7.95,135,7.68,150,7.29,177.2,6.76808
20,38.2,6.311582,52,7,60,7.23,75,7.63,90,7.94,110,8.37,120,8.66,135,8.49,150,8.01,179,7.461136

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.86	5.1	5.25	5.12	5.09	4.92	4.4	3.71
8	5.77	6.01	6.17	6.11	6.2	6.03	5.49	4.78
10	6.35	6.54	6.69	6.75	6.86	6.76	6.36	5.7
12	6.68	6.85	7	7.11	7.27	7.2	6.91	6.44
14	6.86	7.04	7.23	7.31	7.63	7.58	7.3	6.93
16	6.94	7.14	7.42	7.54	7.94	7.95	7.68	7.29
20	7	7.23	7.63	7.94	8.37	8.66	8.49	8.01

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.18	145.7°	3.21
8	41.5°	3.89	149.6°	4.14
10	39.9°	4.38	152.8°	4.95
12	38.7°	4.72	157.7°	5.65
14	38.2°	4.87	169.4°	6.26
16	37.8°	4.93	177.2°	6.76
20	38.2°	4.96	179°	7.46

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