SixPak — ORC Rating | RegattaPages

GPH

664.6

OSN

643.6

LOA

10.4 m

Displacement

4450 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5949

Medium

0.8302

High

0.9713

Triple Offshore

Low

0.774

Medium

1.0255

High

1.163

Boat Specifications

Dimensions

Length overall: 10.4 m
Beam: 3.33 m
Draft: 1.94 m
Displacement: 4450 kg
Crew weight: 614 kg
Wetted surface: 24.29 m²

Sails

Mainsail: 31.3 m²
Genoa: 30.02 m²
Spinnaker: 62.77 m²
Asymmetric spinnaker: 0 m²

Design

Type: L 34
Builder: John Robertson Yac
Designer: A Lavranos
Year built: 1985

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.

6,43.5,4.342585,52,4.88,60,5.18,75,5.42,90,5.35,110,5.26,120,5.08,135,4.55,146,3.968457,150,3.8
8,42.2,5.170054,52,5.81,60,6.13,75,6.37,90,6.33,110,6.39,120,6.2,135,5.6,150,4.85,151,4.802087
10,41.2,5.807966,52,6.48,60,6.7,75,6.87,90,6.95,110,7.01,120,6.91,135,6.51,150,5.77,152,5.66285
12,39.8,6.234678,52,6.84,60,7.01,75,7.15,90,7.29,110,7.39,120,7.3,135,7.02,150,6.56,157.5,6.223755
14,38.6,6.346603,52,7,60,7.18,75,7.39,90,7.51,110,7.79,120,7.69,135,7.38,150,7.02,175,6.434485
16,38.2,6.387931,52,7.06,60,7.27,75,7.58,90,7.71,110,8.2,120,8.12,135,7.78,150,7.36,180,6.9
20,39,6.408063,52,7.08,60,7.31,75,7.76,90,8.19,110,8.72,120,9.04,135,8.69,150,8.13,180,7.58

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.88	5.18	5.42	5.35	5.26	5.08	4.55	3.8
8	5.81	6.13	6.37	6.33	6.39	6.2	5.6	4.85
10	6.48	6.7	6.87	6.95	7.01	6.91	6.51	5.77
12	6.84	7.01	7.15	7.29	7.39	7.3	7.02	6.56
14	7	7.18	7.39	7.51	7.79	7.69	7.38	7.02
16	7.06	7.27	7.58	7.71	8.2	8.12	7.78	7.36
20	7.08	7.31	7.76	8.19	8.72	9.04	8.69	8.13

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.15	146°	3.29
8	42.2°	3.83	151°	4.2
10	41.2°	4.37	152°	5
12	39.8°	4.79	157.5°	5.75
14	38.6°	4.96	175°	6.41
16	38.2°	5.02	180°	6.9
20	39°	4.98	180°	7.58

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