true North — ORC Rating

GPH

598.4

OSN

581.4

LOA

11 m

Displacement

5176 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.68

Medium

0.9159

High

1.0357

Triple Offshore

Low

0.8791

Medium

1.1308

High

1.2618

Boat Specifications

Dimensions

Length overall: 11 m
Beam: 3.6 m
Draft: 2.08 m
Displacement: 5176 kg
Crew weight: 678 kg
Wetted surface: 27.07 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.

6,43.1,4.752368,52,5.33,60,5.66,75,5.93,90,6,110,6.12,120,5.99,135,5.39,144,4.882469,150,4.56
8,41.6,5.643235,52,6.36,60,6.67,75,6.91,90,7.13,110,7.26,120,7.16,135,6.66,147.5,5.869161,150,5.71
10,40.5,6.338719,52,7.04,60,7.24,75,7.4,90,7.57,110,7.8,120,7.74,135,7.43,149,6.789806,150,6.72
12,39,6.665415,52,7.35,60,7.53,75,7.71,90,7.77,110,8.26,120,8.26,135,7.92,150,7.37,150.8,7.320241
14,38.6,6.794448,52,7.49,60,7.71,75,7.98,90,8.06,110,8.59,120,8.81,135,8.46,150,7.71,152,7.599545
16,38.6,6.858426,52,7.55,60,7.79,75,8.2,90,8.4,110,8.86,120,9.28,135,9.05,150,8.08,176,7.257679
20,38.2,6.935105,52,7.61,60,7.84,75,8.4,90,8.95,110,9.39,120,9.98,135,10.59,150,9.09,177,8.010979

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.33	5.66	5.93	6	6.12	5.99	5.39	4.56
8	6.36	6.67	6.91	7.13	7.26	7.16	6.66	5.71
10	7.04	7.24	7.4	7.57	7.8	7.74	7.43	6.72
12	7.35	7.53	7.71	7.77	8.26	8.26	7.92	7.37
14	7.49	7.71	7.98	8.06	8.59	8.81	8.46	7.71
16	7.55	7.79	8.2	8.4	8.86	9.28	9.05	8.08
20	7.61	7.84	8.4	8.95	9.39	9.98	10.59	9.09

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.1°	3.47	144°	3.95
8	41.6°	4.22	147.5°	4.95
10	40.5°	4.82	149°	5.82
12	39°	5.18	150.8°	6.39
14	38.6°	5.31	152°	6.71
16	38.6°	5.36	176°	7.24
20	38.2°	5.45	177°	8

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