WINDBORN — ORC Rating

GPH

571.6

OSN

555.1

LOA

12.244 m

Displacement

6983 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7234

Medium

0.9653

High

1.0824

Triple Offshore

Low

0.9279

Medium

1.1816

High

1.3038

Boat Specifications

Dimensions

Length overall: 12.244 m
Beam: 3.67 m
Draft: 2.17 m
Displacement: 6983 kg
Crew weight: 636 kg
Wetted surface: 32.41 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
Stability index: 120.6

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.

6,43,5.277884,52,5.89,60,6.18,75,6.37,90,6.22,110,6.2,120,6.09,135,5.42,143.4,4.95754,150,4.59
8,40.8,6.208759,52,6.92,60,7.15,75,7.28,90,7.2,110,7.39,120,7.33,135,6.84,146.9,6.016339,150,5.82
10,39.3,6.732656,52,7.44,60,7.62,75,7.75,90,7.75,110,7.98,120,7.98,135,7.73,147.8,7.078762,150,6.91
12,38.1,6.925604,52,7.66,60,7.85,75,8.04,90,8.09,110,8.34,120,8.45,135,8.28,150,7.7,150.7,7.659942
14,37.2,7.017941,52,7.78,60,7.98,75,8.24,90,8.37,110,8.59,120,8.86,135,8.79,150,8.12,150.1,8.120921
16,36.9,7.1028,52,7.85,60,8.06,75,8.37,90,8.61,110,8.83,120,9.19,135,9.32,150,8.49,171.2,7.467909
20,36.9,7.202839,52,7.94,60,8.16,75,8.54,90,8.95,110,9.26,120,9.8,135,10.71,150,9.26,174.8,8.243929

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.89	6.18	6.37	6.22	6.2	6.09	5.42	4.59
8	6.92	7.15	7.28	7.2	7.39	7.33	6.84	5.82
10	7.44	7.62	7.75	7.75	7.98	7.98	7.73	6.91
12	7.66	7.85	8.04	8.09	8.34	8.45	8.28	7.7
14	7.78	7.98	8.24	8.37	8.59	8.86	8.79	8.12
16	7.85	8.06	8.37	8.61	8.83	9.19	9.32	8.49
20	7.94	8.16	8.54	8.95	9.26	9.8	10.71	9.26

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	3.86	143.4°	3.98
8	40.8°	4.7	146.9°	5.04
10	39.3°	5.21	147.8°	5.99
12	38.1°	5.45	150.7°	6.68
14	37.2°	5.59	150.1°	7.04
16	36.9°	5.68	171.2°	7.38
20	36.9°	5.76	174.8°	8.21

Loading polar chart…