FOUR WINDS — ORC Rating

GPH

625.9

OSN

606

LOA

13.442 m

Displacement

12784 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.645

Medium

0.8781

High

1.018

Triple Offshore

Low

0.8285

Medium

1.0865

High

1.2222

Boat Specifications

Dimensions

Length overall: 13.442 m
Beam: 3.78 m
Draft: 2.27 m
Displacement: 12784 kg
Crew weight: 750 kg
Wetted surface: 38.13 m²

Sails

Mainsail: 39.86 m²
Genoa: 61.74 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 144.27 m²

Design

Type: Swan 44
Builder: Nautor
Designer: Sparkman&Sthephens
Year built: 1972
Stability index: 145.8

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.

6,43.6,4.681209,52,5.2,60,5.48,75,5.66,90,5.54,110,5.57,120,5.43,135,4.89,144.8,4.417821,150,4.17
8,41.4,5.49252,52,6.14,60,6.4,75,6.57,90,6.54,110,6.72,120,6.58,135,6.08,147.8,5.400658,150,5.28
10,40.5,6.128305,52,6.81,60,7.03,75,7.17,90,7.27,110,7.44,120,7.36,135,7,147.1,6.407662,150,6.22
12,39.4,6.561123,52,7.22,60,7.39,75,7.53,90,7.67,110,7.85,120,7.81,135,7.57,148,7.07507,150,6.93
14,38.4,6.775608,52,7.46,60,7.62,75,7.77,90,7.89,110,8.16,120,8.15,135,7.95,149.2,7.415946,150,7.35
16,37.8,6.897381,52,7.6,60,7.76,75,7.95,90,8.01,110,8.41,120,8.46,135,8.28,150,7.66,171.2,6.830405
20,37.5,7.046041,52,7.72,60,7.91,75,8.19,90,8.34,110,8.76,120,8.97,135,8.89,150,8.14,175.7,7.591369

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.2	5.48	5.66	5.54	5.57	5.43	4.89	4.17
8	6.14	6.4	6.57	6.54	6.72	6.58	6.08	5.28
10	6.81	7.03	7.17	7.27	7.44	7.36	7	6.22
12	7.22	7.39	7.53	7.67	7.85	7.81	7.57	6.93
14	7.46	7.62	7.77	7.89	8.16	8.15	7.95	7.35
16	7.6	7.76	7.95	8.01	8.41	8.46	8.28	7.66
20	7.72	7.91	8.19	8.34	8.76	8.97	8.89	8.14

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	3.39	144.8°	3.61
8	41.4°	4.12	147.8°	4.57
10	40.5°	4.66	147.1°	5.38
12	39.4°	5.07	148°	6
14	38.4°	5.31	149.2°	6.37
16	37.8°	5.45	171.2°	6.75
20	37.5°	5.59	175.7°	7.57

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