BLAUMARINA I — ORC Rating

GPH

671.8

OSN

650.5

LOA

9.61 m

Displacement

3554 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5959

Medium

0.8212

High

0.9413

Triple Offshore

Low

0.7707

Medium

1.014

High

1.135

Boat Specifications

Dimensions

Length overall: 9.61 m
Beam: 3.21 m
Draft: 1.92 m
Displacement: 3554 kg
Crew weight: 380 kg
Wetted surface: 21.26 m²

Sails

Mainsail: 24.83 m²
Genoa: 27.59 m²
Spinnaker: 59.28 m²
Asymmetric spinnaker: 0 m²

Design

Type: FIRST 31.7
Builder: BENETEAU
Designer: FINOT
Year built: 1998
Stability index: 109.1

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.

6,43.2,4.321174,52,4.84,60,5.12,75,5.34,90,5.26,110,5.19,120,5.02,135,4.5,146,3.968457,150,3.8
8,41.8,5.151071,52,5.77,60,6.05,75,6.27,90,6.24,110,6.32,120,6.17,135,5.6,149.6,4.892676,150,4.87
10,40.8,5.759615,52,6.41,60,6.62,75,6.77,90,6.84,110,6.95,120,6.87,135,6.49,150,5.8,152.3,5.681089
12,40,6.05709,52,6.7,60,6.88,75,7.06,90,7.11,110,7.36,120,7.29,135,7.01,150,6.56,157,6.257436
14,39.4,6.121127,52,6.79,60,7,75,7.27,90,7.4,110,7.76,120,7.74,135,7.42,150,7.02,168.5,6.500499
16,39.4,6.15995,52,6.83,60,7.05,75,7.41,90,7.67,110,8.04,120,8.19,135,7.89,150,7.41,177.5,6.866535
20,40,6.174576,52,6.83,60,7.06,75,7.5,90,8.05,110,8.5,120,8.92,135,8.96,150,8.31,177.5,7.61725

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.84	5.12	5.34	5.26	5.19	5.02	4.5	3.8
8	5.77	6.05	6.27	6.24	6.32	6.17	5.6	4.87
10	6.41	6.62	6.77	6.84	6.95	6.87	6.49	5.8
12	6.7	6.88	7.06	7.11	7.36	7.29	7.01	6.56
14	6.79	7	7.27	7.4	7.76	7.74	7.42	7.02
16	6.83	7.05	7.41	7.67	8.04	8.19	7.89	7.41
20	6.83	7.06	7.5	8.05	8.5	8.92	8.96	8.31

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	3.15	146°	3.29
8	41.8°	3.84	149.6°	4.22
10	40.8°	4.36	152.3°	5.03
12	40°	4.64	157°	5.76
14	39.4°	4.73	168.5°	6.37
16	39.4°	4.76	177.5°	6.86
20	40°	4.73	177.5°	7.61

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