true North — ORC Rating

GPH

603.2

OSN

584.9

LOA

10.95 m

Displacement

5476 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7554

Medium

1.0247

High

1.1639

Triple Offshore

Low

0.9754

Medium

1.2654

High

1.4136

Boat Specifications

Dimensions

Length overall: 10.95 m
Beam: 3.61 m
Draft: 2.08 m
Displacement: 5476 kg
Crew weight: 690 kg
Wetted surface: 27.54 m²

Sails

Mainsail: 39.67 m²
Genoa: 31.68 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 123.06 m²

Design

Type: J/112E
Builder: J-Boats
Designer: Johnstone
Year built: 2015

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.

6,42.9,4.668669,52,5.21,60,5.51,75,5.74,90,5.93,110,6.03,120,5.89,135,5.31,144.3,4.802462,150,4.5
8,41.5,5.567752,52,6.27,60,6.57,75,6.8,90,7.09,110,7.22,120,7.1,135,6.58,147.7,5.78519,150,5.65
10,40.8,6.31444,52,7,60,7.21,75,7.36,90,7.57,110,7.77,120,7.7,135,7.39,148.8,6.745664,150,6.66
12,39.1,6.661973,52,7.34,60,7.52,75,7.68,90,7.77,110,8.21,120,8.19,135,7.86,150,7.33,150.6,7.288682
14,38.6,6.794448,52,7.49,60,7.7,75,7.94,90,8,110,8.54,120,8.73,135,8.37,150,7.66,152.3,7.533373
16,38.5,6.861671,52,7.55,60,7.78,75,8.16,90,8.32,110,8.81,120,9.2,135,8.94,150,8.02,176.2,7.225886
20,38.2,6.94783,52,7.61,60,7.83,75,8.36,90,8.88,110,9.31,120,9.88,135,10.37,150,8.96,177.3,7.958835

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.21	5.51	5.74	5.93	6.03	5.89	5.31	4.5
8	6.27	6.57	6.8	7.09	7.22	7.1	6.58	5.65
10	7	7.21	7.36	7.57	7.77	7.7	7.39	6.66
12	7.34	7.52	7.68	7.77	8.21	8.19	7.86	7.33
14	7.49	7.7	7.94	8	8.54	8.73	8.37	7.66
16	7.55	7.78	8.16	8.32	8.81	9.2	8.94	8.02
20	7.61	7.83	8.36	8.88	9.31	9.88	10.37	8.96

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	3.42	144.3°	3.9
8	41.5°	4.17	147.7°	4.89
10	40.8°	4.78	148.8°	5.77
12	39.1°	5.17	150.6°	6.35
14	38.6°	5.31	152.3°	6.67
16	38.5°	5.37	176.2°	7.21
20	38.2°	5.46	177.3°	7.95

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