CHAMAN J — ORC Rating

GPH

573.6

OSN

557

LOA

11.085 m

Displacement

4250 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8044

Medium

1.0777

High

1.2211

Triple Offshore

Low

1.0358

Medium

1.3249

High

1.4863

Boat Specifications

Dimensions

Length overall: 11.085 m
Beam: 3.27 m
Draft: 2.21 m
Displacement: 4250 kg
Crew weight: 697 kg
Wetted surface: 25.71 m²

Sails

Mainsail: 38.73 m²
Genoa: 32.11 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 128.74 m²

Design

Type: J-111 OD
Builder: J-COMPOSITE
Designer: JOHNSTONE Rodney
Year built: 2010

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.

6,42.4,5.024,52,5.62,60,5.93,75,6.18,90,6.22,110,6.34,120,6.19,135,5.54,143.6,5.03172,150,4.68
8,41.2,6.047195,52,6.79,60,7.05,75,7.21,90,7.35,110,7.5,120,7.41,135,6.92,145.9,6.158971,150,5.89
10,39.2,6.658541,52,7.36,60,7.53,75,7.68,90,7.67,110,8.05,120,8.02,135,7.68,149.2,7.020118,150,6.96
12,37.7,6.824873,52,7.56,60,7.77,75,8.02,90,8.07,110,8.45,120,8.66,135,8.27,150,7.64,151.6,7.525733
14,37.4,6.923337,52,7.65,60,7.88,75,8.3,90,8.5,110,8.8,120,9.18,135,8.98,149,8.143101,150,8.06
16,36.8,6.956141,52,7.69,60,7.95,75,8.46,90,8.88,110,9.15,120,9.62,135,9.83,146.3,8.966841,150,8.61
20,36.8,7.081026,52,7.84,60,8.12,75,8.6,90,9.34,110,9.86,120,10.54,135,11.77,142,11.306952,150,10.29

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.62	5.93	6.18	6.22	6.34	6.19	5.54	4.68
8	6.79	7.05	7.21	7.35	7.5	7.41	6.92	5.89
10	7.36	7.53	7.68	7.67	8.05	8.02	7.68	6.96
12	7.56	7.77	8.02	8.07	8.45	8.66	8.27	7.64
14	7.65	7.88	8.3	8.5	8.8	9.18	8.98	8.06
16	7.69	7.95	8.46	8.88	9.15	9.62	9.83	8.61
20	7.84	8.12	8.6	9.34	9.86	10.54	11.77	10.29

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.71	143.6°	4.05
8	41.2°	4.55	145.9°	5.1
10	39.2°	5.16	149.2°	6.03
12	37.7°	5.4	151.6°	6.62
14	37.4°	5.5	149°	6.98
16	36.8°	5.57	146.3°	7.46
20	36.8°	5.67	142°	8.91

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