COCOMERO & CHAMPAGNE — ORC Rating

GPH

592.6

OSN

580.4

LOA

6.45 m

Displacement

340 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7063

Medium

0.8853

High

1.0596

Triple Offshore

Low

0.8962

Medium

1.1243

High

1.3259

Boat Specifications

Dimensions

Length overall: 6.45 m
Beam: 2.34 m
Draft: 1.5 m
Displacement: 340 kg
Crew weight: 240 kg
Wetted surface: 7.55 m²

Sails

Mainsail: 15.44 m²
Genoa: 8.59 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 38 m²

Design

Type: Viper 640
Builder: Rondar Raceboats
Designer: Brian Bennett
Year built: 1993

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.

6,42.4,5.078168,52,5.6,60,5.79,75,5.94,90,5.94,110,6.03,120,5.92,135,5.53,143,5.096192,150,4.7
8,37.9,5.487375,52,6.18,60,6.52,75,6.94,90,6.89,110,7.15,120,7.21,135,6.53,150,5.78,151.5,5.666708
10,36.8,5.569908,52,6.42,60,6.83,75,7.54,90,8.1,110,7.98,120,8.24,135,7.94,145.5,6.952819,150,6.62
12,36.9,5.614713,52,6.53,60,6.99,75,7.85,90,8.69,110,8.75,120,9.08,135,9.5,141.5,8.778339,150,7.93
14,36.8,5.732259,52,6.75,60,7.23,75,8.07,90,9.1,110,9.98,120,10.02,135,10.65,140.8,10.620116,150,9.51
16,37.3,5.820433,52,6.91,60,7.5,75,8.53,90,9.39,110,10.87,120,10.98,135,11.75,144.5,12.086737,150,11.36
20,38.2,5.891658,52,7.03,60,7.7,75,8.95,90,10.24,110,11.81,120,12.94,135,13.81,149.8,14.648119,150,14.62

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.6	5.79	5.94	5.94	6.03	5.92	5.53	4.7
8	6.18	6.52	6.94	6.89	7.15	7.21	6.53	5.78
10	6.42	6.83	7.54	8.1	7.98	8.24	7.94	6.62
12	6.53	6.99	7.85	8.69	8.75	9.08	9.5	7.93
14	6.75	7.23	8.07	9.1	9.98	10.02	10.65	9.51
16	6.91	7.5	8.53	9.39	10.87	10.98	11.75	11.36
20	7.03	7.7	8.95	10.24	11.81	12.94	13.81	14.62

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.75	143°	4.07
8	37.9°	4.33	151.5°	4.98
10	36.8°	4.46	145.5°	5.73
12	36.9°	4.49	141.5°	6.87
14	36.8°	4.59	140.8°	8.23
16	37.3°	4.63	144.5°	9.84
20	38.2°	4.63	149.8°	12.66

Loading polar chart…