Due — ORC Rating | RegattaPages

GPH

686.1

OSN

663.9

LOA

9.49 m

Displacement

4015 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6556

Medium

0.904

High

1.0546

Triple Offshore

Low

0.8464

Medium

1.1162

High

1.2617

Boat Specifications

Dimensions

Length overall: 9.49 m
Beam: 3.22 m
Draft: 1.95 m
Displacement: 4015 kg
Crew weight: 320 kg
Wetted surface: 22.58 m²

Sails

Mainsail: 25.3 m²
Genoa: 19.79 m²
Spinnaker: 65.7 m²
Asymmetric spinnaker: 51.62 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.

6,43.1,4.09498,52,4.57,60,4.82,75,5.02,90,5.14,110,5.22,120,5.07,135,4.6,146.2,4.043397,150,3.87
8,40.8,4.782066,52,5.41,60,5.67,75,5.9,90,6.17,110,6.3,120,6.15,135,5.64,150,4.9,150.3,4.892754
10,40.3,5.388974,52,6.07,60,6.32,75,6.51,90,6.79,110,6.89,120,6.81,135,6.49,150,5.8,151.5,5.723603
12,40,5.861279,52,6.5,60,6.68,75,6.83,90,7.1,110,7.24,120,7.19,135,6.96,150,6.54,157.4,6.217436
14,39.2,6.077855,52,6.71,60,6.88,75,7.05,90,7.27,110,7.56,120,7.56,135,7.31,150,6.96,175.8,6.367099
16,39,6.137843,52,6.78,60,6.98,75,7.22,90,7.38,110,7.9,120,7.95,135,7.7,150,7.28,180,6.82
20,39.5,6.129924,52,6.79,60,7.02,75,7.4,90,7.75,110,8.34,120,8.69,135,8.57,150,8.03,180,7.46

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.57	4.82	5.02	5.14	5.22	5.07	4.6	3.87
8	5.41	5.67	5.9	6.17	6.3	6.15	5.64	4.9
10	6.07	6.32	6.51	6.79	6.89	6.81	6.49	5.8
12	6.5	6.68	6.83	7.1	7.24	7.19	6.96	6.54
14	6.71	6.88	7.05	7.27	7.56	7.56	7.31	6.96
16	6.78	6.98	7.22	7.38	7.9	7.95	7.7	7.28
20	6.79	7.02	7.4	7.75	8.34	8.69	8.57	8.03

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.1°	2.99	146.2°	3.36
8	40.8°	3.62	150.3°	4.25
10	40.3°	4.11	151.5°	5.03
12	40°	4.49	157.4°	5.74
14	39.2°	4.71	175.8°	6.35
16	39°	4.77	180°	6.82
20	39.5°	4.73	180°	7.46

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