Jack rabbit — ORC Rating

GPH

610.7

OSN

594.3

LOA

10.757 m

Displacement

5120 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7563

Medium

1.0122

High

1.1425

Triple Offshore

Low

0.9745

Medium

1.244

High

1.3777

Boat Specifications

Dimensions

Length overall: 10.757 m
Beam: 3.52 m
Draft: 2.14 m
Displacement: 5120 kg
Crew weight: 800 kg
Wetted surface: 26.33 m²

Sails

Mainsail: 38.06 m²
Genoa: 38.13 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.

6,42.5,4.815013,52,5.4,60,5.72,75,5.96,90,5.87,110,5.89,120,5.73,135,5.15,144.4,4.64887,150,4.37
8,41.2,5.688351,52,6.4,60,6.66,75,6.85,90,6.9,110,7,120,6.88,135,6.35,148,5.577514,150,5.46
10,39.9,6.335011,52,6.98,60,7.14,75,7.27,90,7.37,110,7.52,120,7.44,135,7.14,148.5,6.53265,150,6.43
12,38.2,6.566081,52,7.23,60,7.39,75,7.55,90,7.59,110,7.93,120,7.89,135,7.58,150,7.06,150.3,7.045565
14,37.7,6.685848,52,7.33,60,7.52,75,7.78,90,7.88,110,8.29,120,8.37,135,8.04,150,7.41,173.8,6.498007
16,37.4,6.721931,52,7.38,60,7.59,75,7.95,90,8.18,110,8.54,120,8.84,135,8.53,150,7.71,176.9,7.020273
20,37.6,6.765203,52,7.41,60,7.64,75,8.1,90,8.61,110,8.96,120,9.5,135,9.71,150,8.5,177.7,7.716216

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.4	5.72	5.96	5.87	5.89	5.73	5.15	4.37
8	6.4	6.66	6.85	6.9	7	6.88	6.35	5.46
10	6.98	7.14	7.27	7.37	7.52	7.44	7.14	6.43
12	7.23	7.39	7.55	7.59	7.93	7.89	7.58	7.06
14	7.33	7.52	7.78	7.88	8.29	8.37	8.04	7.41
16	7.38	7.59	7.95	8.18	8.54	8.84	8.53	7.71
20	7.41	7.64	8.1	8.61	8.96	9.5	9.71	8.5

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.5°	3.55	144.4°	3.78
8	41.2°	4.28	148°	4.73
10	39.9°	4.86	148.5°	5.57
12	38.2°	5.16	150.3°	6.12
14	37.7°	5.29	173.8°	6.46
16	37.4°	5.34	176.9°	7.01
20	37.6°	5.36	177.7°	7.71

Loading polar chart…