Ngwenya — ORC Rating | RegattaPages

GPH

570.1

OSN

552.7

LOA

11.121 m

Displacement

4187 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7273

Medium

0.9675

High

1.0934

Triple Offshore

Low

0.9308

Medium

1.1833

High

1.3221

Boat Specifications

Dimensions

Length overall: 11.121 m
Beam: 3.3 m
Draft: 2.18 m
Displacement: 4187 kg
Crew weight: 743 kg
Wetted surface: 25.5 m²

Sails

Mainsail: 36.84 m²
Genoa: 33.15 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 127.55 m²

Design

Type: J-111
Builder: J-Boats
Designer: Johnstone
Year built: 2010
Stability index: 121.1

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.

6,42.6,5.162363,52,5.78,60,6.08,75,6.27,90,6.18,110,6.31,120,6.17,135,5.55,143.3,5.063761,150,4.69
8,40.6,6.163805,52,6.87,60,7.09,75,7.22,90,7.25,110,7.46,120,7.39,135,6.92,146.6,6.180767,150,5.95
10,38.2,6.642431,52,7.37,60,7.55,75,7.7,90,7.68,110,8.02,120,8.03,135,7.72,149.6,7.025976,150,7
12,37,6.811618,52,7.58,60,7.79,75,8.02,90,8.07,110,8.42,120,8.59,135,8.35,150,7.69,151.1,7.618812
14,36.6,6.913153,52,7.69,60,7.91,75,8.25,90,8.42,110,8.73,120,9.1,135,9.02,148.8,8.265484,150,8.17
16,36.4,6.982288,52,7.76,60,8,75,8.4,90,8.72,110,9.04,120,9.53,135,9.81,146.4,9.052477,150,8.71
20,36.6,7.037714,52,7.83,60,8.1,75,8.59,90,9.14,110,9.65,120,10.41,135,11.79,142.8,11.311565,150,10.4

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.78	6.08	6.27	6.18	6.31	6.17	5.55	4.69
8	6.87	7.09	7.22	7.25	7.46	7.39	6.92	5.95
10	7.37	7.55	7.7	7.68	8.02	8.03	7.72	7
12	7.58	7.79	8.02	8.07	8.42	8.59	8.35	7.69
14	7.69	7.91	8.25	8.42	8.73	9.1	9.02	8.17
16	7.76	8	8.4	8.72	9.04	9.53	9.81	8.71
20	7.83	8.1	8.59	9.14	9.65	10.41	11.79	10.4

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.8	143.3°	4.06
8	40.6°	4.68	146.6°	5.16
10	38.2°	5.22	149.6°	6.06
12	37°	5.44	151.1°	6.67
14	36.6°	5.55	148.8°	7.07
16	36.4°	5.62	146.4°	7.54
20	36.6°	5.65	142.8°	9.01

Loading polar chart…