Jack in the Box — ORC Rating

GPH

616.9

OSN

600.3

LOA

10.757 m

Displacement

4957 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6632

Medium

0.8888

High

1.0061

Triple Offshore

Low

0.856

Medium

1.0957

High

1.2164

Boat Specifications

Dimensions

Length overall: 10.757 m
Beam: 3.52 m
Draft: 2.13 m
Displacement: 4957 kg
Crew weight: 635 kg
Wetted surface: 26.02 m²

Sails

Mainsail: 38.27 m²
Genoa: 29.28 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 108.5 m²

Design

Type: J-109
Builder: J Composite
Designer: Johnstone
Year built: 2001

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.

6,42.8,4.674745,52,5.24,60,5.55,75,5.79,90,5.84,110,5.93,120,5.77,135,5.18,144,4.697058,150,4.39
8,41.2,5.528864,52,6.23,60,6.51,75,6.72,90,6.91,110,7.02,120,6.91,135,6.39,148,5.601097,150,5.49
10,40.1,6.183642,52,6.86,60,7.05,75,7.19,90,7.36,110,7.53,120,7.46,135,7.17,148.5,6.567835,150,6.46
12,38.6,6.448967,52,7.14,60,7.31,75,7.48,90,7.53,110,7.94,120,7.92,135,7.62,150,7.09,150.5,7.066077
14,38.4,6.571447,52,7.25,60,7.45,75,7.71,90,7.8,110,8.25,120,8.41,135,8.09,150,7.44,174,6.525749
16,38.2,6.616981,52,7.3,60,7.51,75,7.88,90,8.1,110,8.5,120,8.85,135,8.61,150,7.75,177,7.049661
20,38.1,6.760406,52,7.39,60,7.58,75,8.03,90,8.54,110,8.94,120,9.45,135,9.85,150,8.6,178,7.754724

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.24	5.55	5.79	5.84	5.93	5.77	5.18	4.39
8	6.23	6.51	6.72	6.91	7.02	6.91	6.39	5.49
10	6.86	7.05	7.19	7.36	7.53	7.46	7.17	6.46
12	7.14	7.31	7.48	7.53	7.94	7.92	7.62	7.09
14	7.25	7.45	7.71	7.8	8.25	8.41	8.09	7.44
16	7.3	7.51	7.88	8.1	8.5	8.85	8.61	7.75
20	7.39	7.58	8.03	8.54	8.94	9.45	9.85	8.6

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.43	144°	3.8
8	41.2°	4.16	148°	4.75
10	40.1°	4.73	148.5°	5.6
12	38.6°	5.04	150.5°	6.15
14	38.4°	5.15	174°	6.49
16	38.2°	5.2	177°	7.04
20	38.1°	5.32	178°	7.75

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