The 1st One — ORC Rating

GPH

663

OSN

642.6

LOA

9.61 m

Displacement

3692 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6055

Medium

0.8332

High

0.9588

Triple Offshore

Low

0.7836

Medium

1.025

High

1.1507

Boat Specifications

Dimensions

Length overall: 9.61 m
Beam: 3.21 m
Draft: 1.93 m
Displacement: 3692 kg
Crew weight: 550 kg
Wetted surface: 21.96 m²

Sails

Mainsail: 26.34 m²
Genoa: 28.14 m²
Spinnaker: 67.76 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.

6,42.8,4.361278,52,4.91,60,5.19,75,5.41,90,5.34,110,5.31,120,5.15,135,4.66,146,4.064954,150,3.9
8,41.2,5.143439,52,5.81,60,6.11,75,6.33,90,6.3,110,6.42,120,6.28,135,5.74,150,4.942118
10,40.5,5.773232,52,6.44,60,6.64,75,6.8,90,6.89,110,7,120,6.93,135,6.61,150,5.888973
12,39.4,6.121127,52,6.75,60,6.91,75,7.07,90,7.16,110,7.39,120,7.33,135,7.07,150,6.64,157,6.344345
14,38.6,6.205852,52,6.86,60,7.06,75,7.29,90,7.38,110,7.79,120,7.78,135,7.46,150,7.06,175,6.474638
16,38.4,6.252445,52,6.91,60,7.12,75,7.46,90,7.66,110,8.1,120,8.24,135,7.92,150,7.43,180,6.92
20,39,6.227916,52,6.92,60,7.15,75,7.59,90,8.1,110,8.52,120,9,135,8.97,150,8.29,180,7.63

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.91	5.19	5.41	5.34	5.31	5.15	4.66	3.9
8	5.81	6.11	6.33	6.3	6.42	6.28	5.74	4.94
10	6.44	6.64	6.8	6.89	7	6.93	6.61	5.89
12	6.75	6.91	7.07	7.16	7.39	7.33	7.07	6.64
14	6.86	7.06	7.29	7.38	7.79	7.78	7.46	7.06
16	6.91	7.12	7.46	7.66	8.1	8.24	7.92	7.43
20	6.92	7.15	7.59	8.1	8.52	9	8.97	8.29

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.2	146°	3.37
8	41.2°	3.87	150°	4.28
10	40.5°	4.39	150°	5.1
12	39.4°	4.73	157°	5.84
14	38.6°	4.85	175°	6.45
16	38.4°	4.9	180°	6.92
20	39°	4.84	180°	7.63

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