The Shadow II — ORC Rating

GPH

453.3

OSN

445.3

LOA

15.85 m

Displacement

7856 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.9181

Medium

1.1772

High

1.3706

Triple Offshore

Low

1.1886

Medium

1.4688

High

1.6769

Boat Specifications

Dimensions

Length overall: 15.85 m
Beam: 4.1 m
Draft: 3.21 m
Displacement: 7856 kg
Crew weight: 935 kg
Wetted surface: 41.82 m²

Sails

Mainsail: 100.48 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: 146.2

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.

6,42.6,6.928434,52,7.76,60,8.21,75,8.57,90,8.47,110,8.16,120,7.79,135,6.92,139.8,6.506973,150,5.74
8,40,7.623579,52,8.6,60,8.97,75,9.35,90,9.39,110,9.32,120,9.15,135,8.58,142.4,7.989502,150,7.31
10,38.8,7.993964,52,8.99,60,9.32,75,9.8,90,10.06,110,10.18,120,10.04,135,9.62,147.8,8.768683,150,8.56
12,38.1,8.209064,52,9.21,60,9.57,75,10.15,90,10.59,110,10.92,120,10.94,135,10.68,150,9.52,151.7,9.381275
14,37.8,8.352791,52,9.37,60,9.76,75,10.42,90,11.01,110,11.53,120,11.89,135,11.81,148.7,10.650016,150,10.51
16,37.7,8.455259,52,9.48,60,9.91,75,10.64,90,11.37,110,12.15,120,12.76,135,13,146.4,12.210038,150,11.74
20,37.5,8.520794,52,9.57,60,10.06,75,10.96,90,11.95,110,13.39,120,14.25,135,15.18,147.8,15.043846,150,14.71

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	7.76	8.21	8.57	8.47	8.16	7.79	6.92	5.74
8	8.6	8.97	9.35	9.39	9.32	9.15	8.58	7.31
10	8.99	9.32	9.8	10.06	10.18	10.04	9.62	8.56
12	9.21	9.57	10.15	10.59	10.92	10.94	10.68	9.52
14	9.37	9.76	10.42	11.01	11.53	11.89	11.81	10.51
16	9.48	9.91	10.64	11.37	12.15	12.76	13	11.74
20	9.57	10.06	10.96	11.95	13.39	14.25	15.18	14.71

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	5.1	139.8°	4.97
8	40°	5.84	142.4°	6.33
10	38.8°	6.23	147.8°	7.42
12	38.1°	6.46	151.7°	8.26
14	37.8°	6.6	148.7°	9.1
16	37.7°	6.69	146.4°	10.17
20	37.5°	6.76	147.8°	12.73

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