BLACK TIE — ORC Rating

GPH

611.4

OSN

595.2

LOA

14.6 m

Displacement

17456 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6601

Medium

0.8859

High

1.0287

Triple Offshore

Low

0.8521

Medium

1.1094

High

1.2451

Boat Specifications

Dimensions

Length overall: 14.6 m
Beam: 4.15 m
Draft: 2.79 m
Displacement: 17456 kg
Crew weight: 640 kg
Wetted surface: 44.5 m²

Sails

Mainsail: 53.7 m²
Genoa: 81.06 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 166.29 m²

Design

Type: Swan 47 CB
Builder: Nautor
Designer: S&S
Year built: 1975

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.

6,43.5,4.838881,52,5.36,60,5.65,75,5.89,90,5.85,110,5.74,120,5.6,135,5.04,144.5,4.54481,150,4.27
8,41.2,5.582027,52,6.28,60,6.6,75,6.88,90,6.84,110,6.92,120,6.73,135,6.15,148,5.447804,150,5.33
10,41.2,6.259844,52,7.06,60,7.34,75,7.55,90,7.56,110,7.72,120,7.61,135,7.14,147,6.438762,150,6.24
12,42,6.822358,52,7.49,60,7.71,75,7.88,90,7.93,110,8.1,120,8.04,135,7.77,147.5,7.232703,150,7.04
14,41.2,7.030695,52,7.7,60,7.91,75,8.09,90,8.15,110,8.39,120,8.35,135,8.13,149.5,7.590272,150,7.55
16,40.5,7.127772,52,7.81,60,8.03,75,8.25,90,8.34,110,8.62,120,8.64,135,8.42,150,7.88,171,7.046757
20,40.1,7.242574,52,7.91,60,8.14,75,8.46,90,8.69,110,8.91,120,9.19,135,9.03,150,8.33,178,7.854785

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.36	5.65	5.89	5.85	5.74	5.6	5.04	4.27
8	6.28	6.6	6.88	6.84	6.92	6.73	6.15	5.33
10	7.06	7.34	7.55	7.56	7.72	7.61	7.14	6.24
12	7.49	7.71	7.88	7.93	8.1	8.04	7.77	7.04
14	7.7	7.91	8.09	8.15	8.39	8.35	8.13	7.55
16	7.81	8.03	8.25	8.34	8.62	8.64	8.42	7.88
20	7.91	8.14	8.46	8.69	8.91	9.19	9.03	8.33

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.51	144.5°	3.7
8	41.2°	4.2	148°	4.62
10	41.2°	4.71	147°	5.4
12	42°	5.07	147.5°	6.1
14	41.2°	5.29	149.5°	6.54
16	40.5°	5.42	171°	6.96
20	40.1°	5.54	178°	7.85

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