Hemith IV — ORC Rating

GPH

577.2

OSN

561.6

LOA

17.18 m

Displacement

19496 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7351

Medium

1.0532

High

1.2857

Triple Offshore

Low

0.9784

Medium

1.3374

High

1.5546

Boat Specifications

Dimensions

Length overall: 17.18 m
Beam: 4.71 m
Draft: 2.68 m
Displacement: 19496 kg
Crew weight: 1245 kg
Wetted surface: 57.19 m²

Sails

Mainsail: 77.3 m²
Genoa: 83.4 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 0 m²

Design

Type: Swan 56 Cr
Builder: Nautor
Designer: Frers
Year built: 1997

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.

6,43.8,5.320326,52,5.93,60,6.32,75,6.65,90,6.59,110,5.87,120,5.37,135,4.51,141.3,4.151555,150,3.74
8,42,6.33793,52,7.11,60,7.5,75,7.83,90,7.79,110,7.03,120,6.64,135,5.77,145.1,5.121003,150,4.85
10,41.2,7.110439,52,8.01,60,8.34,75,8.59,90,8.6,110,8.08,120,7.69,135,6.8,150,5.87,169.7,5.224188
12,41.1,7.656954,52,8.49,60,8.75,75,8.97,90,9.03,110,8.78,120,8.49,135,7.73,150,6.77,171.1,6.093365
14,40.3,7.867116,52,8.69,60,8.96,75,9.21,90,9.32,110,9.16,120,8.98,135,8.47,150,7.6,171.9,6.898825
16,39.7,7.967252,52,8.8,60,9.06,75,9.39,90,9.56,110,9.47,120,9.31,135,8.94,150,8.33,172.5,7.655494
20,38.9,8.01806,52,8.89,60,9.15,75,9.58,90,10,110,10.12,120,9.98,135,9.57,150,9.18,176.5,8.796407

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.93	6.32	6.65	6.59	5.87	5.37	4.51	3.74
8	7.11	7.5	7.83	7.79	7.03	6.64	5.77	4.85
10	8.01	8.34	8.59	8.6	8.08	7.69	6.8	5.87
12	8.49	8.75	8.97	9.03	8.78	8.49	7.73	6.77
14	8.69	8.96	9.21	9.32	9.16	8.98	8.47	7.6
16	8.8	9.06	9.39	9.56	9.47	9.31	8.94	8.33
20	8.89	9.15	9.58	10	10.12	9.98	9.57	9.18

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	3.84	141.3°	3.24
8	42°	4.71	145.1°	4.2
10	41.2°	5.35	169.7°	5.14
12	41.1°	5.77	171.1°	6.02
14	40.3°	6	171.9°	6.83
16	39.7°	6.13	172.5°	7.59
20	38.9°	6.24	176.5°	8.78

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