MARINA SEIS — ORC Rating

GPH

678.3

OSN

655.6

LOA

9.61 m

Displacement

3837 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5944

Medium

0.8162

High

0.9376

Triple Offshore

Low

0.7645

Medium

1.0039

High

1.1223

Boat Specifications

Dimensions

Length overall: 9.61 m
Beam: 3.21 m
Draft: 1.94 m
Displacement: 3837 kg
Crew weight: 400 kg
Wetted surface: 21.63 m²

Sails

Mainsail: 25.41 m²
Genoa: 25.28 m²
Spinnaker: 59.6 m²
Asymmetric spinnaker: 0 m²

Design

Type: FIRST 31.7
Builder: BENETEAU
Designer: FINOT
Year built: 1998
Stability index: 106

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.

6,43.3,4.369496,52,4.83,60,5.08,75,5.23,90,5.11,110,5.13,120,4.96,135,4.43,145.7,3.922051,150,3.74
8,40.8,5.112319,52,5.72,60,5.96,75,6.12,90,6.09,110,6.22,120,6.07,135,5.53,149.8,4.824854,150,4.82
10,39.4,5.642307,52,6.3,60,6.5,75,6.65,90,6.72,110,6.86,120,6.78,135,6.39,150,5.74,152.9,5.594168
12,38.8,5.928108,52,6.61,60,6.79,75,6.96,90,7.02,110,7.27,120,7.22,135,6.94,150,6.47,157.7,6.139149
14,38.4,6.022763,52,6.73,60,6.94,75,7.18,90,7.26,110,7.59,120,7.59,135,7.34,150,6.96,169.1,6.405565
16,38.4,6.086564,52,6.8,60,7.01,75,7.32,90,7.49,110,7.86,120,7.94,135,7.74,150,7.33,177.2,6.798116
20,39.3,6.138218,52,6.82,60,7.06,75,7.45,90,7.82,110,8.17,120,8.56,135,8.57,150,8.09,179,7.511144

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.83	5.08	5.23	5.11	5.13	4.96	4.43	3.74
8	5.72	5.96	6.12	6.09	6.22	6.07	5.53	4.82
10	6.3	6.5	6.65	6.72	6.86	6.78	6.39	5.74
12	6.61	6.79	6.96	7.02	7.27	7.22	6.94	6.47
14	6.73	6.94	7.18	7.26	7.59	7.59	7.34	6.96
16	6.8	7.01	7.32	7.49	7.86	7.94	7.74	7.33
20	6.82	7.06	7.45	7.82	8.17	8.56	8.57	8.09

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.3°	3.18	145.7°	3.24
8	40.8°	3.87	149.8°	4.17
10	39.4°	4.36	152.9°	4.98
12	38.8°	4.62	157.7°	5.68
14	38.4°	4.72	169.1°	6.29
16	38.4°	4.77	177.2°	6.79
20	39.3°	4.75	179°	7.51

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