SAIL EXCHANGE — ORC Rating

GPH

558.2

OSN

542.9

LOA

11.99 m

Displacement

5044 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8139

Medium

1.1037

High

1.2703

Triple Offshore

Low

1.0562

Medium

1.3624

High

1.5484

Boat Specifications

Dimensions

Length overall: 11.99 m
Beam: 3.84 m
Draft: 2.57 m
Displacement: 5044 kg
Crew weight: 810 kg
Wetted surface: 28.93 m²

Sails

Mainsail: 52.4 m²
Genoa: 35.63 m²
Spinnaker: 131.69 m²
Asymmetric spinnaker: 125.15 m²

Design

Type: Cookson 12
Builder: Cookson
Designer: FARR
Year built: 1995

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.

6,43.1,5.163236,52,5.78,60,6.16,75,6.52,90,6.5,110,6.48,120,6.26,135,5.6,143.6,5.081416,150,4.73
8,42,6.189911,52,6.96,60,7.29,75,7.53,90,7.64,110,7.67,120,7.53,135,6.97,145.7,6.22202,150,5.94
10,40.3,6.857503,52,7.59,60,7.8,75,8.01,90,8.03,110,8.3,120,8.16,135,7.79,150,7.032126
12,38.8,7.082935,52,7.81,60,8.07,75,8.44,90,8.5,110,8.79,120,8.85,135,8.35,150,7.76,156.8,7.430897
14,37.9,7.172873,52,7.93,60,8.23,75,8.78,90,9.03,110,9.17,120,9.5,135,9.04,150,8.28,172.1,7.50119
16,37.3,7.24097,52,8.01,60,8.33,75,8.97,90,9.5,110,9.57,120,9.95,135,9.85,150,8.9,180,7.97
20,37,7.350036,52,8.19,60,8.55,75,9.16,90,9.99,110,10.35,120,10.87,135,11.81,150,10.42,180,9.06

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.78	6.16	6.52	6.5	6.48	6.26	5.6	4.73
8	6.96	7.29	7.53	7.64	7.67	7.53	6.97	5.94
10	7.59	7.8	8.01	8.03	8.3	8.16	7.79	7.03
12	7.81	8.07	8.44	8.5	8.79	8.85	8.35	7.76
14	7.93	8.23	8.78	9.03	9.17	9.5	9.04	8.28
16	8.01	8.33	8.97	9.5	9.57	9.95	9.85	8.9
20	8.19	8.55	9.16	9.99	10.35	10.87	11.81	10.42

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.1°	3.77	143.6°	4.09
8	42°	4.6	145.7°	5.14
10	40.3°	5.23	150°	6.09
12	38.8°	5.52	156.8°	6.83
14	37.9°	5.66	172.1°	7.43
16	37.3°	5.76	180°	7.97
20	37°	5.87	180°	9.06

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