j-walk II — ORC Rating

GPH

547.6

OSN

531.9

LOA

13.14 m

Displacement

8824 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7528

Medium

1.0053

High

1.134

Triple Offshore

Low

0.9673

Medium

1.233

High

1.3705

Boat Specifications

Dimensions

Length overall: 13.14 m
Beam: 3.87 m
Draft: 2.29 m
Displacement: 8824 kg
Crew weight: 882 kg
Wetted surface: 37.65 m²

Sails

Mainsail: 56.89 m²
Genoa: 63.63 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 157.25 m²

Design

Type: J/133
Builder: Jeurope
Designer: Johnstone
Year built: 2004
Stability index: 135.4

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.

6,43.2,5.596949,52,6.22,60,6.55,75,6.77,90,6.63,110,6.37,120,6.17,135,5.57,143.3,5.088705,150,4.71
8,41.2,6.592108,52,7.32,60,7.55,75,7.69,90,7.61,110,7.62,120,7.48,135,6.92,146.6,6.192745,150,5.97
10,39,7.102913,52,7.85,60,8.03,75,8.15,90,8.14,110,8.29,120,8.22,135,7.86,149.3,7.094242,150,7.05
12,37.6,7.307933,52,8.08,60,8.27,75,8.46,90,8.5,110,8.74,120,8.74,135,8.44,150,7.83,150.5,7.789919
14,37,7.437686,52,8.21,60,8.41,75,8.68,90,8.81,110,9.13,120,9.22,135,8.97,150,8.29,150.5,8.26099
16,36.4,7.504096,52,8.29,60,8.5,75,8.83,90,9.07,110,9.48,120,9.69,135,9.52,150,8.67,171.2,7.650054
20,36,7.601818,52,8.4,60,8.63,75,9.05,90,9.48,110,10.09,120,10.7,135,10.86,150,9.45,175.7,8.463825

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.22	6.55	6.77	6.63	6.37	6.17	5.57	4.71
8	7.32	7.55	7.69	7.61	7.62	7.48	6.92	5.97
10	7.85	8.03	8.15	8.14	8.29	8.22	7.86	7.05
12	8.08	8.27	8.46	8.5	8.74	8.74	8.44	7.83
14	8.21	8.41	8.68	8.81	9.13	9.22	8.97	8.29
16	8.29	8.5	8.83	9.07	9.48	9.69	9.52	8.67
20	8.4	8.63	9.05	9.48	10.09	10.7	10.86	9.45

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	4.08	143.3°	4.08
8	41.2°	4.96	146.6°	5.17
10	39°	5.52	149.3°	6.1
12	37.6°	5.79	150.5°	6.78
14	37°	5.94	150.5°	7.19
16	36.4°	6.04	171.2°	7.56
20	36°	6.15	175.7°	8.44

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