Bruorskip — ORC Rating

GPH

683.2

OSN

660.5

LOA

9.61 m

Displacement

3887 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5818

Medium

0.8071

High

0.9469

Triple Offshore

Low

0.7525

Medium

0.9976

High

1.1332

Boat Specifications

Dimensions

Length overall: 9.61 m
Beam: 3.21 m
Draft: 1.95 m
Displacement: 3887 kg
Crew weight: 450 kg
Wetted surface: 22.4 m²

Sails

Mainsail: 25.89 m²
Genoa: 19.98 m²
Spinnaker: 61.63 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.

6,43.5,4.135795,52,4.59,60,4.86,75,5.05,90,5.14,110,5.2,120,5.04,135,4.55,146,4.004644,150,3.83
8,41.6,4.880997,52,5.47,60,5.75,75,5.98,90,6.2,110,6.31,120,6.15,135,5.6,150,4.872836
10,40.5,5.44446,52,6.14,60,6.39,75,6.58,90,6.82,110,6.92,120,6.84,135,6.47,150,5.77,152,5.674176
12,39.8,5.922293,52,6.57,60,6.75,75,6.9,90,7.12,110,7.29,120,7.23,135,6.97,150,6.52,157,6.213981
14,39,6.150711,52,6.78,60,6.95,75,7.13,90,7.26,110,7.67,120,7.62,135,7.33,150,6.97,175,6.374256
16,38.6,6.193056,52,6.86,60,7.06,75,7.31,90,7.43,110,7.99,120,8.04,135,7.74,150,7.31,180,6.84
20,39,6.189314,52,6.87,60,7.1,75,7.53,90,7.91,110,8.37,120,8.8,135,8.67,150,8.09,180,7.51

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.59	4.86	5.05	5.14	5.2	5.04	4.55	3.83
8	5.47	5.75	5.98	6.2	6.31	6.15	5.6	4.87
10	6.14	6.39	6.58	6.82	6.92	6.84	6.47	5.77
12	6.57	6.75	6.9	7.12	7.29	7.23	6.97	6.52
14	6.78	6.95	7.13	7.26	7.67	7.62	7.33	6.97
16	6.86	7.06	7.31	7.43	7.99	8.04	7.74	7.31
20	6.87	7.1	7.53	7.91	8.37	8.8	8.67	8.09

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3	146°	3.32
8	41.6°	3.65	150°	4.22
10	40.5°	4.14	152°	5.01
12	39.8°	4.55	157°	5.72
14	39°	4.78	175°	6.35
16	38.6°	4.84	180°	6.84
20	39°	4.81	180°	7.51

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