So Long — ORC Rating | RegattaPages

GPH

632.9

OSN

613.7

LOA

11.98 m

Displacement

8900 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6185

Medium

0.8548

High

1.0125

Triple Offshore

Low

0.807

Medium

1.0784

High

1.236

Boat Specifications

Dimensions

Length overall: 11.98 m
Beam: 4.2 m
Draft: 2.08 m
Displacement: 8900 kg
Crew weight: 770 kg
Wetted surface: 35.82 m²

Sails

Mainsail: 43.4 m²
Genoa: 36.86 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 106.89 m²

Design

Type: Dufour 412 GL
Builder: Dufour
Designer: Felci
Year built: 2016

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.

6,44.6,4.395907,52,4.91,60,5.26,75,5.53,90,5.61,110,5.66,120,5.48,135,4.92,145,4.394789,150,4.16
8,42.8,5.219905,52,5.87,60,6.23,75,6.53,90,6.77,110,6.87,120,6.66,135,6.06,148,5.365262,150,5.25
10,42.4,5.917758,52,6.64,60,6.99,75,7.26,90,7.56,110,7.63,120,7.5,135,7.03,147.5,6.33158,150,6.17
12,42.4,6.554222,52,7.22,60,7.47,75,7.66,90,7.97,110,8.05,120,7.96,135,7.65,148,7.098654,150,6.96
14,40.9,6.85318,52,7.55,60,7.76,75,7.93,90,8.22,110,8.44,120,8.34,135,8.05,150,7.470912
16,41.2,7.057276,52,7.71,60,7.93,75,8.16,90,8.36,110,8.83,120,8.76,135,8.42,150,7.81,175,7.026739
20,41.6,7.127592,52,7.77,60,8.04,75,8.49,90,8.72,110,9.41,120,9.62,135,9.23,150,8.37,178,7.854785

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.91	5.26	5.53	5.61	5.66	5.48	4.92	4.16
8	5.87	6.23	6.53	6.77	6.87	6.66	6.06	5.25
10	6.64	6.99	7.26	7.56	7.63	7.5	7.03	6.17
12	7.22	7.47	7.66	7.97	8.05	7.96	7.65	6.96
14	7.55	7.76	7.93	8.22	8.44	8.34	8.05	7.47
16	7.71	7.93	8.16	8.36	8.83	8.76	8.42	7.81
20	7.77	8.04	8.49	8.72	9.41	9.62	9.23	8.37

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.6°	3.13	145°	3.6
8	42.8°	3.83	148°	4.55
10	42.4°	4.37	147.5°	5.34
12	42.4°	4.84	148°	6.02
14	40.9°	5.18	150°	6.47
16	41.2°	5.31	175°	7
20	41.6°	5.33	178°	7.85

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