The Shadow II — ORC Rating

GPH

455.4

OSN

446.4

LOA

15.85 m

Displacement

7856 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8977

Medium

1.1713

High

1.3771

Triple Offshore

Low

1.1702

Medium

1.4692

High

1.6922

Boat Specifications

Dimensions

Length overall: 15.85 m
Beam: 4.1 m
Draft: 3.21 m
Displacement: 7856 kg
Crew weight: 860 kg
Wetted surface: 41.67 m²

Sails

Mainsail: 91.17 m²
Genoa: 62.73 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 253.59 m²

Design

Type: Transpac 52
Builder: Westerly Yacht
Designer: Reichel/Pugh
Year built: 2002
Stability index: 146.7

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.

6,43.8,6.691973,52,7.44,60,7.97,75,8.38,90,8.51,110,8.21,120,7.77,135,6.87,140.3,6.407594,150,5.7
8,41.8,7.686364,52,8.58,60,8.96,75,9.29,90,9.38,110,9.35,120,9.17,135,8.59,141.9,8.031159,150,7.29
10,40,8.041309,52,8.97,60,9.3,75,9.84,90,10.06,110,10.32,120,10.14,135,9.58,148.2,8.74228,150,8.58
12,39.4,8.282285,52,9.17,60,9.53,75,10.22,90,10.76,110,11.18,120,11.08,135,10.72,150,9.49,152.3,9.306595
14,38.2,8.423926,52,9.33,60,9.71,75,10.5,90,11.21,110,11.82,120,12.14,135,11.91,148.7,10.614906,150,10.47
16,37.8,8.555283,52,9.54,60,9.97,75,10.71,90,11.57,110,12.45,120,13.02,135,13.18,145.1,12.363564,150,11.7
20,38.1,8.666535,52,9.71,60,10.29,75,11.3,90,11.9,110,13.71,120,14.53,135,15.33,146.5,15.373807,150,14.8

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	7.44	7.97	8.38	8.51	8.21	7.77	6.87	5.7
8	8.58	8.96	9.29	9.38	9.35	9.17	8.59	7.29
10	8.97	9.3	9.84	10.06	10.32	10.14	9.58	8.58
12	9.17	9.53	10.22	10.76	11.18	11.08	10.72	9.49
14	9.33	9.71	10.5	11.21	11.82	12.14	11.91	10.47
16	9.54	9.97	10.71	11.57	12.45	13.02	13.18	11.7
20	9.71	10.29	11.3	11.9	13.71	14.53	15.33	14.8

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	4.83	140.3°	4.93
8	41.8°	5.73	141.9°	6.32
10	40°	6.16	148.2°	7.43
12	39.4°	6.4	152.3°	8.24
14	38.2°	6.62	148.7°	9.07
16	37.8°	6.76	145.1°	10.14
20	38.1°	6.82	146.5°	12.82

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