GEO — ORC Rating | RegattaPages

GPH

679.3

OSN

657.1

LOA

9.61 m

Displacement

3798 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5847

Medium

0.8051

High

0.9357

Triple Offshore

Low

0.7573

Medium

1.0035

High

1.1397

Boat Specifications

Dimensions

Length overall: 9.61 m
Beam: 3.21 m
Draft: 1.94 m
Displacement: 3798 kg
Crew weight: 450 kg
Wetted surface: 21.68 m²

Sails

Mainsail: 24.07 m²
Genoa: 22.75 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 68.31 m²

Design

Type: First 31.7
Builder: Beneteau
Designer: Finot
Year built: 1998
Stability index: 117.3

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.

6,44.2,4.128827,52,4.56,60,4.84,75,5.04,90,5.22,110,5.27,120,5.1,135,4.6,145.1,4.133381,150,3.92
8,42.4,4.915666,52,5.48,60,5.77,75,6,90,6.3,110,6.4,120,6.25,135,5.72,147.1,5.121365,150,4.97
10,41.2,5.515574,52,6.17,60,6.42,75,6.61,90,6.9,110,6.99,120,6.91,135,6.59,147.1,6.038447,150,5.86
12,40.2,5.983273,52,6.61,60,6.78,75,6.93,90,7.23,110,7.39,120,7.33,135,7.07,148.4,6.6101,150,6.5
14,38.8,6.210399,52,6.83,60,7,75,7.17,90,7.44,110,7.82,120,7.78,135,7.47,150,6.88,151.1,6.819237
16,38.2,6.260682,52,6.94,60,7.14,75,7.38,90,7.59,110,8.2,120,8.26,135,7.93,150,7.17,173.6,6.510574
20,38.7,6.304214,52,6.97,60,7.21,75,7.67,90,8.02,110,8.79,120,9.22,135,8.98,150,7.8,176.8,7.181197

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.56	4.84	5.04	5.22	5.27	5.1	4.6	3.92
8	5.48	5.77	6	6.3	6.4	6.25	5.72	4.97
10	6.17	6.42	6.61	6.9	6.99	6.91	6.59	5.86
12	6.61	6.78	6.93	7.23	7.39	7.33	7.07	6.5
14	6.83	7	7.17	7.44	7.82	7.78	7.47	6.88
16	6.94	7.14	7.38	7.59	8.2	8.26	7.93	7.17
20	6.97	7.21	7.67	8.02	8.79	9.22	8.98	7.8

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	2.96	145.1°	3.39
8	42.4°	3.63	147.1°	4.3
10	41.2°	4.15	147.1°	5.07
12	40.2°	4.57	148.4°	5.63
14	38.8°	4.84	151.1°	5.97
16	38.2°	4.92	173.6°	6.47
20	38.7°	4.92	176.8°	7.17

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