SixPak — ORC Rating | RegattaPages

GPH

670.3

OSN

649.2

LOA

10.4 m

Displacement

4450 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6594

Medium

0.9216

High

1.0921

Triple Offshore

Low

0.86

Medium

1.1442

High

1.3103

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: 24.37 m²

Sails

Mainsail: 31.3 m²
Genoa: 30.02 m²
Spinnaker: 62.71 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.

6,43.9,4.302262,52,4.79,60,5.11,75,5.4,90,5.38,110,5.18,120,5,135,4.47,146.9,3.879584,150,3.75
8,42.3,5.083615,52,5.74,60,6.09,75,6.38,90,6.36,110,6.31,120,6.11,135,5.51,150,4.79,151.1,4.740341
10,42.2,5.764003,52,6.44,60,6.7,75,6.9,90,6.95,110,6.96,120,6.85,135,6.44,150,5.71,152.6,5.575483
12,40.9,6.218136,52,6.84,60,7.03,75,7.2,90,7.32,110,7.34,120,7.25,135,6.98,150,6.51,157.5,6.180459
14,39.5,6.376158,52,7.03,60,7.23,75,7.46,90,7.54,110,7.75,120,7.61,135,7.33,150,6.98,175.3,6.391492
16,38.8,6.441365,52,7.1,60,7.33,75,7.69,90,7.78,110,8.19,120,8.04,135,7.7,150,7.32,180,6.87
20,38.7,6.470788,52,7.16,60,7.41,75,7.92,90,8.32,110,8.71,120,9.01,135,8.57,150,8.05,180,7.53

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.79	5.11	5.4	5.38	5.18	5	4.47	3.75
8	5.74	6.09	6.38	6.36	6.31	6.11	5.51	4.79
10	6.44	6.7	6.9	6.95	6.96	6.85	6.44	5.71
12	6.84	7.03	7.2	7.32	7.34	7.25	6.98	6.51
14	7.03	7.23	7.46	7.54	7.75	7.61	7.33	6.98
16	7.1	7.33	7.69	7.78	8.19	8.04	7.7	7.32
20	7.16	7.41	7.92	8.32	8.71	9.01	8.57	8.05

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.9°	3.1	146.9°	3.25
8	42.3°	3.76	151.1°	4.15
10	42.2°	4.27	152.6°	4.95
12	40.9°	4.7	157.5°	5.71
14	39.5°	4.92	175.3°	6.37
16	38.8°	5.02	180°	6.87
20	38.7°	5.05	180°	7.53

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