Jack rabbit — ORC Rating

GPH

625.9

OSN

609.3

LOA

10.757 m

Displacement

5120 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7414

Medium

0.9847

High

1.1095

Triple Offshore

Low

0.9542

Medium

1.2139

High

1.3359

Boat Specifications

Dimensions

Length overall: 10.757 m
Beam: 3.52 m
Draft: 2.14 m
Displacement: 5120 kg
Crew weight: 190 kg
Wetted surface: 26.33 m²

Sails

Mainsail: 37.73 m²
Genoa: 28.79 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 108.02 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.

6,42.1,4.595837,52,5.15,60,5.42,75,5.64,90,5.79,110,5.87,120,5.71,135,5.14,144.5,4.643076,150,4.36
8,40.6,5.439426,52,6.15,60,6.43,75,6.63,90,6.84,110,6.97,120,6.86,135,6.34,147.9,5.583612,150,5.46
10,40.1,6.065983,52,6.77,60,6.97,75,7.13,90,7.17,110,7.45,120,7.41,135,7.13,148.5,6.520922,150,6.42
12,39.2,6.323034,52,7.02,60,7.21,75,7.39,90,7.44,110,7.72,120,7.81,135,7.57,150,7.06,150.3,7.045565
14,38.7,6.406721,52,7.12,60,7.32,75,7.57,90,7.69,110,7.94,120,8.2,135,8.01,150,7.41,174.1,6.474296
16,38.5,6.452782,52,7.16,60,7.37,75,7.7,90,7.92,110,8.14,120,8.46,135,8.49,150,7.7,176.8,7.020947
20,38.9,6.630319,52,7.27,60,7.46,75,7.8,90,8.27,110,8.52,120,8.92,135,9.54,150,8.47,177.8,7.70568

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.15	5.42	5.64	5.79	5.87	5.71	5.14	4.36
8	6.15	6.43	6.63	6.84	6.97	6.86	6.34	5.46
10	6.77	6.97	7.13	7.17	7.45	7.41	7.13	6.42
12	7.02	7.21	7.39	7.44	7.72	7.81	7.57	7.06
14	7.12	7.32	7.57	7.69	7.94	8.2	8.01	7.41
16	7.16	7.37	7.7	7.92	8.14	8.46	8.49	7.7
20	7.27	7.46	7.8	8.27	8.52	8.92	9.54	8.47

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.1°	3.41	144.5°	3.78
8	40.6°	4.13	147.9°	4.73
10	40.1°	4.64	148.5°	5.56
12	39.2°	4.9	150.3°	6.12
14	38.7°	5	174.1°	6.44
16	38.5°	5.05	176.8°	7.01
20	38.9°	5.16	177.8°	7.7

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