WINDBORN — ORC Rating

GPH

572.6

OSN

556

LOA

12.244 m

Displacement

6985 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7214

Medium

0.9641

High

1.0803

Triple Offshore

Low

0.9257

Medium

1.1802

High

1.3014

Boat Specifications

Dimensions

Length overall: 12.244 m
Beam: 3.67 m
Draft: 2.17 m
Displacement: 6985 kg
Crew weight: 636 kg
Wetted surface: 32.63 m²

Sails

Mainsail: 46.47 m²
Genoa: 50.03 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 164.89 m²

Design

Type: J 120
Builder: TPI
Designer: JOHNSTONE
Year built: 1994

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.

6,43.1,5.2728,52,5.87,60,6.16,75,6.35,90,6.2,110,6.18,120,6.08,135,5.41,143.3,4.95151,150,4.58
8,40.9,6.204906,52,6.91,60,7.13,75,7.27,90,7.19,110,7.38,120,7.32,135,6.83,146.9,6.004402,150,5.8
10,39.2,6.723062,52,7.44,60,7.62,75,7.75,90,7.74,110,7.97,120,7.98,135,7.72,147.7,7.0629,150,6.9
12,38,6.916149,52,7.66,60,7.85,75,8.03,90,8.08,110,8.32,120,8.44,135,8.26,150,7.69,150.6,7.644507
14,37.3,7.01469,52,7.77,60,7.97,75,8.23,90,8.36,110,8.58,120,8.85,135,8.78,149.9,8.114187,150,8.1
16,36.8,7.068538,52,7.84,60,8.04,75,8.35,90,8.59,110,8.81,120,9.16,135,9.3,150,8.46,171.2,7.437552
20,36.5,7.165455,52,7.93,60,8.15,75,8.54,90,8.93,110,9.23,120,9.76,135,10.65,150,9.22,175.3,8.207599
24,37.5,7.235112,52,7.96,60,8.2,75,8.66,90,9.17,110,9.63,120,10.39,135,12.38,141.9,12.821897,150,11.65

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.87	6.16	6.35	6.2	6.18	6.08	5.41	4.58
8	6.91	7.13	7.27	7.19	7.38	7.32	6.83	5.8
10	7.44	7.62	7.75	7.74	7.97	7.98	7.72	6.9
12	7.66	7.85	8.03	8.08	8.32	8.44	8.26	7.69
14	7.77	7.97	8.23	8.36	8.58	8.85	8.78	8.1
16	7.84	8.04	8.35	8.59	8.81	9.16	9.3	8.46
20	7.93	8.15	8.54	8.93	9.23	9.76	10.65	9.22
24	7.96	8.2	8.66	9.17	9.63	10.39	12.38	11.65

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.1°	3.85	143.3°	3.97
8	40.9°	4.69	146.9°	5.03
10	39.2°	5.21	147.7°	5.97
12	38°	5.45	150.6°	6.66
14	37.3°	5.58	149.9°	7.02
16	36.8°	5.66	171.2°	7.35
20	36.5°	5.76	175.3°	8.18
24	37.5°	5.74	141.9°	10.09

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