Sophie B — ORC Rating

GPH

646.4

OSN

629.2

LOA

12.44 m

Displacement

10800 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7058

Medium

0.9483

High

1.1038

Triple Offshore

Low

0.9105

Medium

1.1791

High

1.3176

Boat Specifications

Dimensions

Length overall: 12.44 m
Beam: 3.62 m
Draft: 2.21 m
Displacement: 10800 kg
Crew weight: 711 kg
Wetted surface: 34.55 m²

Sails

Mainsail: 39.71 m²
Genoa: 60.73 m²
Spinnaker: 135 m²
Asymmetric spinnaker: 127.63 m²

Design

Type: Swan 411 (1977)
Builder: Nautor
Designer: S&S
Year built: 1977

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.

6,43.4,4.541859,52,5.04,60,5.33,75,5.58,90,5.56,110,5.45,120,5.28,135,4.82,146.3,4.291102,150,4.12
8,41.9,5.266612,52,5.92,60,6.27,75,6.57,90,6.56,110,6.61,120,6.41,135,5.88,150,5.16,150.7,5.12574
10,42.8,5.969499,52,6.65,60,6.94,75,7.13,90,7.15,110,7.27,120,7.17,135,6.81,150,6.06,151.5,5.973939
12,42.5,6.361243,52,6.99,60,7.23,75,7.41,90,7.44,110,7.61,120,7.56,135,7.33,150,6.86,155.1,6.603869
14,41.5,6.489035,52,7.13,60,7.36,75,7.6,90,7.66,110,7.79,120,7.87,135,7.65,150,7.32,171.8,6.68838
16,40.9,6.575349,52,7.21,60,7.43,75,7.72,90,7.86,110,7.92,120,8.14,135,7.96,150,7.62,180,7.15
20,40.4,6.618183,52,7.27,60,7.49,75,7.82,90,8.16,110,8.16,120,8.43,135,8.62,150,8.22,180,7.77

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.04	5.33	5.58	5.56	5.45	5.28	4.82	4.12
8	5.92	6.27	6.57	6.56	6.61	6.41	5.88	5.16
10	6.65	6.94	7.13	7.15	7.27	7.17	6.81	6.06
12	6.99	7.23	7.41	7.44	7.61	7.56	7.33	6.86
14	7.13	7.36	7.6	7.66	7.79	7.87	7.65	7.32
16	7.21	7.43	7.72	7.86	7.92	8.14	7.96	7.62
20	7.27	7.49	7.82	8.16	8.16	8.43	8.62	8.22

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.4°	3.3	146.3°	3.57
8	41.9°	3.92	150.7°	4.47
10	42.8°	4.38	151.5°	5.25
12	42.5°	4.69	155.1°	5.99
14	41.5°	4.86	171.8°	6.62
16	40.9°	4.97	180°	7.15
20	40.4°	5.04	180°	7.77

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