SHIRLAF — ORC Rating | RegattaPages

GPH

551.7

OSN

533.8

LOA

19.68 m

Displacement

32671 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7177

Medium

0.9912

High

1.1584

Triple Offshore

Low

0.9288

Medium

1.2374

High

1.4067

Boat Specifications

Dimensions

Length overall: 19.68 m
Beam: 4.95 m
Draft: 2.92 m
Displacement: 32671 kg
Crew weight: 1225 kg
Wetted surface: 71.6 m²

Sails

Mainsail: 70.77 m²
Genoa: 116.9 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 267.63 m²

Design

Type: Swan 65
Builder: Nautor
Designer: Sparkman&Stephens
Year built: 1973
Stability index: 144.1

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.

6,44.4,5.360597,52,5.91,60,6.27,75,6.5,90,6.38,110,6.17,120,6.04,135,5.36,143.3,4.889148,150,4.53
8,42,6.297561,52,7.02,60,7.34,75,7.55,90,7.46,110,7.5,120,7.35,135,6.78,147.8,5.932452,150,5.79
10,41.1,7.03325,52,7.83,60,8.11,75,8.3,90,8.32,110,8.47,120,8.36,135,7.86,147.5,7.090421,150,6.91
12,40.6,7.54671,52,8.34,60,8.59,75,8.77,90,8.87,110,9.05,120,9,135,8.65,148.7,7.934847,150,7.82
14,40.2,7.829315,52,8.65,60,8.88,75,9.08,90,9.2,110,9.43,120,9.42,135,9.16,149.2,8.533577,150,8.47
16,39.6,7.981693,52,8.82,60,9.06,75,9.3,90,9.42,110,9.72,120,9.76,135,9.55,150,8.9,150.5,8.858447
20,39,8.145188,52,9,60,9.24,75,9.56,90,9.77,110,10.16,120,10.34,135,10.23,150,9.49,175.4,8.728114

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.91	6.27	6.5	6.38	6.17	6.04	5.36	4.53
8	7.02	7.34	7.55	7.46	7.5	7.35	6.78	5.79
10	7.83	8.11	8.3	8.32	8.47	8.36	7.86	6.91
12	8.34	8.59	8.77	8.87	9.05	9	8.65	7.82
14	8.65	8.88	9.08	9.2	9.43	9.42	9.16	8.47
16	8.82	9.06	9.3	9.42	9.72	9.76	9.55	8.9
20	9	9.24	9.56	9.77	10.16	10.34	10.23	9.49

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.4°	3.83	143.3°	3.92
8	42°	4.68	147.8°	5.02
10	41.1°	5.3	147.5°	5.98
12	40.6°	5.73	148.7°	6.78
14	40.2°	5.98	149.2°	7.33
16	39.6°	6.15	150.5°	7.71
20	39°	6.33	175.4°	8.7

Loading polar chart…