RumChaser — ORC Rating

GPH

577.9

OSN

560.9

LOA

12.19 m

Displacement

6892 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7044

Medium

0.9529

High

1.0761

Triple Offshore

Low

0.9089

Medium

1.1726

High

1.3041

Boat Specifications

Dimensions

Length overall: 12.19 m
Beam: 3.64 m
Draft: 2.37 m
Displacement: 6892 kg
Crew weight: 776 kg
Wetted surface: 32.21 m²

Sails

Mainsail: 48.63 m²
Genoa: 38.93 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 149.45 m²

Design

Type: J122E
Builder: J Composites
Designer: Johnstone
Year built: 2006
Stability index: 123.6

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.

6,43,4.936052,52,5.52,60,5.85,75,6.11,90,6.16,110,6.28,120,6.14,135,5.52,143.9,5.024815,150,4.69
8,41.4,5.879129,52,6.62,60,6.93,75,7.15,90,7.36,110,7.49,120,7.39,135,6.87,146.9,6.087962,150,5.89
10,40.6,6.651114,52,7.34,60,7.54,75,7.69,90,7.77,110,8.06,120,8.01,135,7.71,148.7,7.057098,150,6.96
12,38.8,6.903295,52,7.64,60,7.83,75,8.01,90,8.03,110,8.42,120,8.51,135,8.22,150,7.67,150.9,7.610679
14,38.2,7.02418,52,7.75,60,7.96,75,8.25,90,8.35,110,8.7,120,9.02,135,8.77,150,8.05,151.1,7.97291
16,38.1,7.103509,52,7.81,60,8.04,75,8.42,90,8.67,110,8.97,120,9.37,135,9.38,150,8.4,173,7.475723
20,37.5,7.247716,52,7.93,60,8.14,75,8.58,90,9.15,110,9.46,120,10.03,135,10.94,150,9.24,175.7,8.223147

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.52	5.85	6.11	6.16	6.28	6.14	5.52	4.69
8	6.62	6.93	7.15	7.36	7.49	7.39	6.87	5.89
10	7.34	7.54	7.69	7.77	8.06	8.01	7.71	6.96
12	7.64	7.83	8.01	8.03	8.42	8.51	8.22	7.67
14	7.75	7.96	8.25	8.35	8.7	9.02	8.77	8.05
16	7.81	8.04	8.42	8.67	8.97	9.37	9.38	8.4
20	7.93	8.14	8.58	9.15	9.46	10.03	10.94	9.24

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	3.61	143.9°	4.06
8	41.4°	4.41	146.9°	5.1
10	40.6°	5.05	148.7°	6.03
12	38.8°	5.38	150.9°	6.65
14	38.2°	5.52	151.1°	6.98
16	38.1°	5.59	173°	7.42
20	37.5°	5.75	175.7°	8.2

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