VIRUS — ORC Rating | RegattaPages

GPH

743.2

OSN

722.1

LOA

7.511 m

Displacement

1056 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5456

Medium

0.7403

High

0.8301

Triple Offshore

Low

0.7065

Medium

0.9123

High

1.0111

Boat Specifications

Dimensions

Length overall: 7.511 m
Beam: 2.52 m
Draft: 1.36 m
Displacement: 1056 kg
Crew weight: 320 kg
Wetted surface: 10.8 m²

Sails

Mainsail: 16.52 m²
Genoa: 12.23 m²
Spinnaker: 25.99 m²
Asymmetric spinnaker: 0 m²

Design

Type: Rivetto
Builder: Negri Nautica
Designer: Fontana/Maletto/Na
Year built: 1978
Stability index: 79.8

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.

6,43,4.006269,52,4.5,60,4.76,75,4.95,90,4.88,110,4.8,120,4.61,135,4.05,147.8,3.521655,150,3.44
8,42.4,4.79379,52,5.33,60,5.56,75,5.71,90,5.75,110,5.74,120,5.59,135,5.02,150,4.4,152.3,4.303171
10,40.8,5.23121,52,5.75,60,5.91,75,6.06,90,6.19,110,6.23,120,6.12,135,5.82,150,5.26,153.8,5.093293
12,40.2,5.381018,52,5.91,60,6.11,75,6.35,90,6.52,110,6.7,120,6.58,135,6.25,150,5.89,162.8,5.516717
14,40.5,5.431309,52,5.96,60,6.19,75,6.55,90,6.77,110,7.1,120,7.03,135,6.69,150,6.29,178.4,5.82227
16,40.8,5.442572,52,5.98,60,6.23,75,6.65,90,7,110,7.43,120,7.49,135,7.14,150,6.71,179,6.200944
20,42.9,5.515035,52,5.98,60,6.25,75,6.7,90,7.21,110,7.87,120,8.52,135,8.32,150,7.6,179,6.981063

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.5	4.76	4.95	4.88	4.8	4.61	4.05	3.44
8	5.33	5.56	5.71	5.75	5.74	5.59	5.02	4.4
10	5.75	5.91	6.06	6.19	6.23	6.12	5.82	5.26
12	5.91	6.11	6.35	6.52	6.7	6.58	6.25	5.89
14	5.96	6.19	6.55	6.77	7.1	7.03	6.69	6.29
16	5.98	6.23	6.65	7	7.43	7.49	7.14	6.71
20	5.98	6.25	6.7	7.21	7.87	8.52	8.32	7.6

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	2.93	147.8°	2.98
8	42.4°	3.54	152.3°	3.81
10	40.8°	3.96	153.8°	4.57
12	40.2°	4.11	162.8°	5.27
14	40.5°	4.13	178.4°	5.82
16	40.8°	4.12	179°	6.2
20	42.9°	4.04	179°	6.98

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