Rubber Duck — ORC Rating

GPH

514.7

OSN

503.6

LOA

12.18 m

Displacement

5192 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8769

Medium

1.1678

High

1.3619

Triple Offshore

Low

1.1525

Medium

1.4685

High

1.6952

Boat Specifications

Dimensions

Length overall: 12.18 m
Beam: 4.41 m
Draft: 3.01 m
Displacement: 5192 kg
Crew weight: 971 kg
Wetted surface: 36.63 m²

Sails

Mainsail: 74.34 m²
Genoa: 43.06 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 179.89 m²

Design

Type: Express 40
Builder: Sail Ventures ltd
Designer: Owen Clarke Design
Year built: 2007

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.

6,44.2,6.039805,52,6.73,60,7.23,75,7.67,90,7.72,110,7.07,120,6.5,135,5.72,142.2,5.252134,150,4.79
8,41.8,6.935166,52,7.73,60,8.06,75,8.42,90,8.53,110,8.09,120,7.97,135,7.36,144.1,6.505838,150,6.09
10,39.3,7.262481,52,8.09,60,8.37,75,8.85,90,9.21,110,8.91,120,8.83,135,8.3,146.2,7.653573,150,7.34
12,37.8,7.441578,52,8.3,60,8.6,75,9.19,90,9.7,110,9.75,120,9.81,135,9.12,150,8.25,151.7,8.109238
14,37,7.525335,52,8.42,60,8.77,75,9.47,90,10.06,110,10.69,120,10.69,135,10.22,148.7,8.988145,150,8.87
16,36.7,7.682947,52,8.54,60,8.91,75,9.7,90,10.49,110,11.38,120,11.82,135,11.53,144.4,10.44151,150,9.81
20,36.5,7.775016,52,8.77,60,9.27,75,10.12,90,11.01,110,12.44,120,13.08,135,13.79,140.2,13.497621,150,11.97

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.73	7.23	7.67	7.72	7.07	6.5	5.72	4.79
8	7.73	8.06	8.42	8.53	8.09	7.97	7.36	6.09
10	8.09	8.37	8.85	9.21	8.91	8.83	8.3	7.34
12	8.3	8.6	9.19	9.7	9.75	9.81	9.12	8.25
14	8.42	8.77	9.47	10.06	10.69	10.69	10.22	8.87
16	8.54	8.91	9.7	10.49	11.38	11.82	11.53	9.81
20	8.77	9.27	10.12	11.01	12.44	13.08	13.79	11.97

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	4.33	142.2°	4.15
8	41.8°	5.17	144.1°	5.27
10	39.3°	5.62	146.2°	6.36
12	37.8°	5.88	151.7°	7.14
14	37°	6.01	148.7°	7.68
16	36.7°	6.16	144.4°	8.49
20	36.5°	6.25	140.2°	10.37

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