VIRU - I — ORC Rating

GPH

738

OSN

716.5

LOA

7.65 m

Displacement

1668 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5609

Medium

0.7561

High

0.8572

Triple Offshore

Low

0.7173

Medium

0.914

High

1.0172

Boat Specifications

Dimensions

Length overall: 7.65 m
Beam: 2.76 m
Draft: 1.54 m
Displacement: 1668 kg
Crew weight: 450 kg
Wetted surface: 12.69 m²

Sails

Mainsail: 17.52 m²
Genoa: 14.98 m²
Spinnaker: 31.67 m²
Asymmetric spinnaker: 0 m²

Design

Type: Conrad 25R
Designer: Petterson
Year built: 1978

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.

6,41.2,3.987162,52,4.52,60,4.75,75,4.92,90,4.85,110,4.83,120,4.66,135,4.2,149,3.651563,150,3.61
8,41.2,4.731432,52,5.31,60,5.5,75,5.61,90,5.68,110,5.68,120,5.56,135,5.12,150,4.52,153,4.399519
10,39.8,5.219427,52,5.7,60,5.83,75,5.93,90,6.07,110,6.08,120,6,135,5.74,150,5.31,156,5.068166
12,37.5,5.407427,52,5.91,60,6.04,75,6.17,90,6.38,110,6.45,120,6.33,135,6.09,150,5.81,180,5.28
14,36.8,5.482488,52,6.04,60,6.2,75,6.39,90,6.63,110,6.82,120,6.69,135,6.43,150,6.13,180,5.77
16,36.8,5.519954,52,6.09,60,6.29,75,6.59,90,6.76,110,7.15,120,7.06,135,6.78,150,6.44,180,6.08
20,38.2,5.548084,52,6.1,60,6.34,75,6.76,90,7.11,110,7.6,120,7.78,135,7.52,150,7.11,180,6.7

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.52	4.75	4.92	4.85	4.83	4.66	4.2	3.61
8	5.31	5.5	5.61	5.68	5.68	5.56	5.12	4.52
10	5.7	5.83	5.93	6.07	6.08	6	5.74	5.31
12	5.91	6.04	6.17	6.38	6.45	6.33	6.09	5.81
14	6.04	6.2	6.39	6.63	6.82	6.69	6.43	6.13
16	6.09	6.29	6.59	6.76	7.15	7.06	6.78	6.44
20	6.1	6.34	6.76	7.11	7.6	7.78	7.52	7.11

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.2°	3	149°	3.13
8	41.2°	3.56	153°	3.92
10	39.8°	4.01	156°	4.63
12	37.5°	4.29	180°	5.28
14	36.8°	4.39	180°	5.77
16	36.8°	4.42	180°	6.08
20	38.2°	4.36	180°	6.7

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