LA MARIA — ORC Rating

GPH

675.3

OSN

652.7

LOA

9.49 m

Displacement

3982 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6693

Medium

0.9235

High

1.0735

Triple Offshore

Low

0.8598

Medium

1.1348

High

1.2796

Boat Specifications

Dimensions

Length overall: 9.49 m
Beam: 3.22 m
Draft: 1.94 m
Displacement: 3982 kg
Crew weight: 500 kg
Wetted surface: 22.5 m²

Sails

Mainsail: 25.59 m²
Genoa: 28.41 m²
Spinnaker: 60.44 m²
Asymmetric spinnaker: 0 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.

6,42.5,4.258913,52,4.76,60,5.01,75,5.21,90,5.14,110,5.11,120,4.96,135,4.5,146.6,3.964794,150,3.82
8,40.7,5.025495,52,5.67,60,5.94,75,6.15,90,6.13,110,6.22,120,6.05,135,5.54,150,4.86,150.5,4.837103
10,40.4,5.698991,52,6.35,60,6.55,75,6.69,90,6.78,110,6.86,120,6.76,135,6.41,150,5.73,152.8,5.599177
12,39.1,6.069225,52,6.69,60,6.84,75,6.98,90,7.09,110,7.23,120,7.16,135,6.91,150,6.47,157,6.170527
14,38.2,6.197057,52,6.84,60,7.01,75,7.19,90,7.25,110,7.59,120,7.53,135,7.25,150,6.91,180,6.3
16,37.8,6.239282,52,6.89,60,7.08,75,7.36,90,7.5,110,7.92,120,7.94,135,7.63,150,7.24,180,6.79
20,38.3,6.243817,52,6.92,60,7.12,75,7.52,90,7.93,110,8.29,120,8.7,135,8.51,150,7.97,180,7.43

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.76	5.01	5.21	5.14	5.11	4.96	4.5	3.82
8	5.67	5.94	6.15	6.13	6.22	6.05	5.54	4.86
10	6.35	6.55	6.69	6.78	6.86	6.76	6.41	5.73
12	6.69	6.84	6.98	7.09	7.23	7.16	6.91	6.47
14	6.84	7.01	7.19	7.25	7.59	7.53	7.25	6.91
16	6.89	7.08	7.36	7.5	7.92	7.94	7.63	7.24
20	6.92	7.12	7.52	7.93	8.29	8.7	8.51	7.97

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.5°	3.14	146.6°	3.31
8	40.7°	3.81	150.5°	4.21
10	40.4°	4.34	152.8°	4.98
12	39.1°	4.71	157°	5.68
14	38.2°	4.87	180°	6.3
16	37.8°	4.93	180°	6.79
20	38.3°	4.9	180°	7.43

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