SixPak — ORC Rating | RegattaPages

GPH

667.8

OSN

645.4

LOA

10.4 m

Displacement

4450 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5892

Medium

0.828

High

0.9732

Triple Offshore

Low

0.7665

Medium

1.0228

High

1.1622

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
Stability index: 117.9

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.

6,44.5,4.37434,52,4.83,60,5.13,75,5.36,90,5.28,110,5.2,120,5.02,135,4.48,146,3.920208,150,3.75
8,42,5.126861,52,5.77,60,6.09,75,6.33,90,6.29,110,6.35,120,6.15,135,5.54,150,4.81,150.5,4.791145
10,41.4,5.812473,52,6.46,60,6.69,75,6.85,90,6.94,110,6.99,120,6.88,135,6.47,150,5.74,152.3,5.624617
12,39.6,6.203657,52,6.83,60,7,75,7.14,90,7.28,110,7.37,120,7.28,135,7,150,6.54,157.4,6.217436
14,38.4,6.341765,52,7,60,7.18,75,7.38,90,7.51,110,7.77,120,7.66,135,7.36,150,7.02,169.4,6.480589
16,38.2,6.413381,52,7.07,60,7.27,75,7.58,90,7.7,110,8.18,120,8.1,135,7.76,150,7.36,178.4,6.87268
20,38.4,6.431086,52,7.1,60,7.33,75,7.77,90,8.19,110,8.71,120,9.01,135,8.67,150,8.14,179,7.55115

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.83	5.13	5.36	5.28	5.2	5.02	4.48	3.75
8	5.77	6.09	6.33	6.29	6.35	6.15	5.54	4.81
10	6.46	6.69	6.85	6.94	6.99	6.88	6.47	5.74
12	6.83	7	7.14	7.28	7.37	7.28	7	6.54
14	7	7.18	7.38	7.51	7.77	7.66	7.36	7.02
16	7.07	7.27	7.58	7.7	8.18	8.1	7.76	7.36
20	7.1	7.33	7.77	8.19	8.71	9.01	8.67	8.14

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.5°	3.12	146°	3.25
8	42°	3.81	150.5°	4.17
10	41.4°	4.36	152.3°	4.98
12	39.6°	4.78	157.4°	5.74
14	38.4°	4.97	169.4°	6.37
16	38.2°	5.04	178.4°	6.87
20	38.4°	5.04	179°	7.55

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