PETRINA — ORC Rating | RegattaPages

GPH

671.5

OSN

648.5

LOA

12 m

Displacement

9850 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5851

Medium

0.8136

High

0.9941

Triple Offshore

Low

0.7555

Medium

1.0163

High

1.1835

Boat Specifications

Dimensions

Length overall: 12 m
Beam: 3.92 m
Draft: 2.31 m
Displacement: 9850 kg
Crew weight: 530 kg
Wetted surface: 34.67 m²

Sails

Mainsail: 36.88 m²
Genoa: 31.08 m²
Spinnaker: 101.45 m²
Asymmetric spinnaker: 0 m²

Design

Type: Conrad 40
Builder: Conrad
Year built: 1989

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.

6,44.2,4.128827,52,4.56,60,4.83,75,5.03,90,5.13,110,5.25,120,5.11,135,4.65,146,4.113203,150,3.94
8,42,4.87119,52,5.43,60,5.7,75,5.93,90,6.2,110,6.38,120,6.22,135,5.71,150,4.988306
10,40.5,5.391857,52,6.11,60,6.43,75,6.69,90,7.04,110,7.18,120,7.09,135,6.66,150,5.88,152,5.776107
12,40.5,5.944193,52,6.71,60,6.96,75,7.15,90,7.45,110,7.59,120,7.53,135,7.27,150,6.69,153.5,6.525618
14,40.5,6.417625,52,7.07,60,7.26,75,7.42,90,7.64,110,7.89,120,7.85,135,7.63,150,7.26,165,6.70859
16,39.4,6.638769,52,7.28,60,7.45,75,7.62,90,7.75,110,8.18,120,8.16,135,7.93,150,7.59,180,7.06
20,38.8,6.800644,52,7.46,60,7.67,75,7.93,90,8.06,110,8.52,120,8.77,135,8.59,150,8.17,180,7.73

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.56	4.83	5.03	5.13	5.25	5.11	4.65	3.94
8	5.43	5.7	5.93	6.2	6.38	6.22	5.71	4.99
10	6.11	6.43	6.69	7.04	7.18	7.09	6.66	5.88
12	6.71	6.96	7.15	7.45	7.59	7.53	7.27	6.69
14	7.07	7.26	7.42	7.64	7.89	7.85	7.63	7.26
16	7.28	7.45	7.62	7.75	8.18	8.16	7.93	7.59
20	7.46	7.67	7.93	8.06	8.52	8.77	8.59	8.17

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	2.96	146°	3.41
8	42°	3.62	150°	4.32
10	40.5°	4.1	152°	5.1
12	40.5°	4.52	153.5°	5.84
14	40.5°	4.88	165°	6.48
16	39.4°	5.13	180°	7.06
20	38.8°	5.3	180°	7.73

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