JAX — ORC Rating | RegattaPages

GPH

606.1

OSN

589.1

LOA

8.96 m

Displacement

2264 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7687

Medium

1.0264

High

1.1757

Triple Offshore

Low

0.9869

Medium

1.2472

High

1.4112

Boat Specifications

Dimensions

Length overall: 8.96 m
Beam: 2.85 m
Draft: 1.96 m
Displacement: 2264 kg
Crew weight: 521 kg
Wetted surface: 17.56 m²

Sails

Mainsail: 27.39 m²
Genoa: 21.11 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 95.57 m²

Design

Type: J 88
Builder: J-BOAT
Designer: R-JOHNSTONE
Year built: 2013

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.

6,42.1,4.784522,52,5.39,60,5.69,75,5.91,90,6,110,6.15,120,6.03,135,5.32,144.3,4.790148,150,4.49
8,40.8,5.706774,52,6.35,60,6.55,75,6.69,90,6.79,110,7,120,6.95,135,6.58,146.9,5.825344,150,5.63
10,38,6.180119,52,6.8,60,6.95,75,7.08,90,7.09,110,7.49,120,7.56,135,7.22,150,6.59,151.6,6.502597
12,36.5,6.319533,52,6.99,60,7.19,75,7.45,90,7.49,110,7.85,120,8.16,135,7.88,150,7.22,159.9,6.79378
14,36,6.378111,52,7.08,60,7.32,75,7.76,90,7.93,110,8.14,120,8.61,135,8.66,150,7.81,180,6.93
16,35.7,6.42791,52,7.12,60,7.4,75,7.93,90,8.35,110,8.5,120,8.91,135,9.6,150,8.5,180,7.43
20,35.6,6.49366,52,7.26,60,7.56,75,8.08,90,8.85,110,9.24,120,9.79,135,11.23,143.3,11.374753,150,10.53

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.39	5.69	5.91	6	6.15	6.03	5.32	4.49
8	6.35	6.55	6.69	6.79	7	6.95	6.58	5.63
10	6.8	6.95	7.08	7.09	7.49	7.56	7.22	6.59
12	6.99	7.19	7.45	7.49	7.85	8.16	7.88	7.22
14	7.08	7.32	7.76	7.93	8.14	8.61	8.66	7.81
16	7.12	7.4	7.93	8.35	8.5	8.91	9.6	8.5
20	7.26	7.56	8.08	8.85	9.24	9.79	11.23	10.53

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.1°	3.55	144.3°	3.89
8	40.8°	4.32	146.9°	4.88
10	38°	4.87	151.6°	5.72
12	36.5°	5.08	159.9°	6.38
14	36°	5.16	180°	6.93
16	35.7°	5.22	180°	7.43
20	35.6°	5.28	143.3°	9.12

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