Ngwenya — ORC Rating | RegattaPages

GPH

574.5

OSN

557

LOA

11.121 m

Displacement

4186 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7087

Medium

0.9591

High

1.0959

Triple Offshore

Low

0.9134

Medium

1.178

High

1.3316

Boat Specifications

Dimensions

Length overall: 11.121 m
Beam: 3.3 m
Draft: 2.18 m
Displacement: 4186 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: 125.7

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.

6,43,4.963399,52,5.56,60,5.9,75,6.16,90,6.15,110,6.29,120,6.15,135,5.53,143.8,5.031226,150,4.69
8,41.8,5.996169,52,6.71,60,6.99,75,7.18,90,7.32,110,7.47,120,7.39,135,6.93,146,6.187898,150,5.92
10,39.6,6.644921,52,7.33,60,7.51,75,7.64,90,7.67,110,8.05,120,8.02,135,7.7,149.6,7.03757,150,7.01
12,37.8,6.834102,52,7.56,60,7.77,75,8,90,8.03,110,8.49,120,8.68,135,8.32,150,7.67,151.6,7.571205
14,37.5,6.957808,52,7.66,60,7.9,75,8.31,90,8.46,110,8.85,120,9.25,135,9.06,148.4,8.26556,150,8.13
16,37,6.986917,52,7.72,60,7.98,75,8.49,90,8.87,110,9.2,120,9.72,135,9.96,146.2,9.085609,150,8.71
20,36.4,7.131376,52,7.88,60,8.15,75,8.67,90,9.41,110,10.01,120,10.64,135,12.04,141.9,11.589267,150,10.53

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.56	5.9	6.16	6.15	6.29	6.15	5.53	4.69
8	6.71	6.99	7.18	7.32	7.47	7.39	6.93	5.92
10	7.33	7.51	7.64	7.67	8.05	8.02	7.7	7.01
12	7.56	7.77	8	8.03	8.49	8.68	8.32	7.67
14	7.66	7.9	8.31	8.46	8.85	9.25	9.06	8.13
16	7.72	7.98	8.49	8.87	9.2	9.72	9.96	8.71
20	7.88	8.15	8.67	9.41	10.01	10.64	12.04	10.53

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	3.63	143.8°	4.06
8	41.8°	4.47	146°	5.13
10	39.6°	5.12	149.6°	6.07
12	37.8°	5.4	151.6°	6.66
14	37.5°	5.52	148.4°	7.04
16	37°	5.58	146.2°	7.55
20	36.4°	5.74	141.9°	9.12

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