WINDBORN — ORC Rating

GPH

577.2

OSN

560.9

LOA

12.244 m

Displacement

6999 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7064

Medium

0.9535

High

1.0764

Triple Offshore

Low

0.9121

Medium

1.1733

High

1.3036

Boat Specifications

Dimensions

Length overall: 12.244 m
Beam: 3.67 m
Draft: 2.17 m
Displacement: 6999 kg
Crew weight: 636 kg
Wetted surface: 32.47 m²

Sails

Mainsail: 46.47 m²
Genoa: 50.03 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 160.76 m²

Design

Type: J-120
Builder: TPI
Designer: JOHNSTONE
Year built: 1994
Stability index: 120.5

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.

6,43.6,5.095476,52,5.65,60,5.99,75,6.27,90,6.19,110,6.18,120,6.07,135,5.41,143.8,4.932089,150,4.59
8,41.8,6.036412,52,6.77,60,7.07,75,7.27,90,7.23,110,7.43,120,7.36,135,6.85,147.5,5.952159,150,5.79
10,41.1,6.741304,52,7.4,60,7.59,75,7.75,90,7.76,110,8,120,7.98,135,7.73,147.3,7.130033,150,6.92
12,39.4,6.936414,52,7.62,60,7.82,75,8.02,90,8.09,110,8.33,120,8.47,135,8.24,150,7.7,150.9,7.645013
14,38.2,6.99873,52,7.73,60,7.93,75,8.23,90,8.39,110,8.61,120,8.94,135,8.81,150,8.08,150.9,8.022686
16,37.8,7.074561,52,7.79,60,8.01,75,8.37,90,8.68,110,8.89,120,9.29,135,9.45,150,8.44,171.2,7.478028
20,37.4,7.187682,52,7.87,60,8.06,75,8.53,90,9.1,110,9.38,120,9.96,135,10.96,143,10.417769,150,9.61

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.65	5.99	6.27	6.19	6.18	6.07	5.41	4.59
8	6.77	7.07	7.27	7.23	7.43	7.36	6.85	5.79
10	7.4	7.59	7.75	7.76	8	7.98	7.73	6.92
12	7.62	7.82	8.02	8.09	8.33	8.47	8.24	7.7
14	7.73	7.93	8.23	8.39	8.61	8.94	8.81	8.08
16	7.79	8.01	8.37	8.68	8.89	9.29	9.45	8.44
20	7.87	8.06	8.53	9.1	9.38	9.96	10.96	9.61

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	3.69	143.8°	3.98
8	41.8°	4.5	147.5°	5.02
10	41.1°	5.08	147.3°	6
12	39.4°	5.36	150.9°	6.68
14	38.2°	5.5	150.9°	7.01
16	37.8°	5.59	171.2°	7.39
20	37.4°	5.71	143°	8.32

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