Jamei — ORC Rating | RegattaPages

GPH

650.4

OSN

637.3

LOA

9.15 m

Displacement

2700 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6458

Medium

0.8351

High

0.9216

Triple Offshore

Low

0.8326

Medium

1.0293

High

1.1247

Boat Specifications

Dimensions

Length overall: 9.15 m
Beam: 3.04 m
Draft: 1.82 m
Displacement: 2700 kg
Crew weight: 170 kg
Wetted surface: 18.4 m²

Sails

Mainsail: 28.83 m²
Genoa: 19.86 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 86.29 m²

Design

Type: J/92
Builder: J Boats
Designer: Rod Johnstone
Year built: 1992

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.

6,42,4.427132,52,4.98,60,5.24,75,5.68,90,6,110,5.91,120,5.68,135,5.13,144.5,4.643076,150,4.36
8,40.9,5.252341,52,5.91,60,6.15,75,6.39,90,6.68,110,6.7,120,6.63,135,6.26,148,5.55393,150,5.44
10,40.1,5.752225,52,6.38,60,6.56,75,6.72,90,6.95,110,7.13,120,7.1,135,6.87,149.8,6.329006,150,6.31
12,39.4,5.888187,52,6.54,60,6.73,75,6.95,90,7.14,110,7.54,120,7.53,135,7.34,150,6.8,151.5,6.71357
14,39.4,5.939952,52,6.6,60,6.8,75,7.12,90,7.3,110,7.88,120,7.99,135,7.88,150,7.14,175.5,6.349574
16,39.4,5.978775,52,6.61,60,6.84,75,7.21,90,7.54,110,8.12,120,8.43,135,8.46,150,7.51,177.5,6.77645
20,40.1,6.026763,52,6.68,60,6.92,75,7.26,90,7.82,110,8.48,120,9.13,135,9.57,141.8,9.569172,150,8.69

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.98	5.24	5.68	6	5.91	5.68	5.13	4.36
8	5.91	6.15	6.39	6.68	6.7	6.63	6.26	5.44
10	6.38	6.56	6.72	6.95	7.13	7.1	6.87	6.31
12	6.54	6.73	6.95	7.14	7.54	7.53	7.34	6.8
14	6.6	6.8	7.12	7.3	7.88	7.99	7.88	7.14
16	6.61	6.84	7.21	7.54	8.12	8.43	8.46	7.51
20	6.68	6.92	7.26	7.82	8.48	9.13	9.57	8.69

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.29	144.5°	3.78
8	40.9°	3.97	148°	4.71
10	40.1°	4.4	149.8°	5.47
12	39.4°	4.55	151.5°	5.9
14	39.4°	4.59	175.5°	6.33
16	39.4°	4.62	177.5°	6.77
20	40.1°	4.61	141.8°	7.52

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