SixPak — ORC Rating | RegattaPages

GPH

665.7

OSN

642.7

LOA

10.4 m

Displacement

4450 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5953

Medium

0.8334

High

0.9756

Triple Offshore

Low

0.7711

Medium

1.0255

High

1.1611

Boat Specifications

Dimensions

Length overall: 10.4 m
Beam: 3.33 m
Draft: 1.94 m
Displacement: 4450 kg
Crew weight: 608 kg
Wetted surface: 24.4 m²

Sails

Mainsail: 31.56 m²
Genoa: 29.4 m²
Spinnaker: 62.74 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.

6,43.9,4.454923,52,4.93,60,5.2,75,5.37,90,5.25,110,5.18,120,4.99,135,4.43,145.1,3.901716,150,3.69
8,41.7,5.276987,52,5.87,60,6.12,75,6.29,90,6.25,110,6.29,120,6.1,135,5.52,149.6,4.78833,150,4.77
10,40,5.835171,52,6.48,60,6.67,75,6.82,90,6.89,110,6.96,120,6.84,135,6.41,150,5.72,151.8,5.628027
12,38.5,6.184449,52,6.84,60,7,75,7.14,90,7.26,110,7.37,120,7.28,135,6.97,150,6.48,157.8,6.156368
14,37.8,6.327872,52,7.01,60,7.19,75,7.38,90,7.5,110,7.74,120,7.65,135,7.36,150,6.99,170.9,6.400559
16,37.5,6.390595,52,7.09,60,7.29,75,7.57,90,7.67,110,8.08,120,8.03,135,7.74,150,7.36,177.2,6.848176
20,37.8,6.441774,52,7.14,60,7.37,75,7.75,90,8.07,110,8.56,120,8.78,135,8.53,150,8.07,178.6,7.552254
24,38.8,6.428533,52,7.14,60,7.39,75,7.84,90,8.28,110,8.88,120,9.52,135,9.64,150,8.88,178.6,8.222454

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.93	5.2	5.37	5.25	5.18	4.99	4.43	3.69
8	5.87	6.12	6.29	6.25	6.29	6.1	5.52	4.77
10	6.48	6.67	6.82	6.89	6.96	6.84	6.41	5.72
12	6.84	7	7.14	7.26	7.37	7.28	6.97	6.48
14	7.01	7.19	7.38	7.5	7.74	7.65	7.36	6.99
16	7.09	7.29	7.57	7.67	8.08	8.03	7.74	7.36
20	7.14	7.37	7.75	8.07	8.56	8.78	8.53	8.07
24	7.14	7.39	7.84	8.28	8.88	9.52	9.64	8.88

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.9°	3.21	145.1°	3.2
8	41.7°	3.94	149.6°	4.13
10	40°	4.47	151.8°	4.96
12	38.5°	4.84	157.8°	5.7
14	37.8°	5	170.9°	6.32
16	37.5°	5.07	177.2°	6.84
20	37.8°	5.09	178.6°	7.55
24	38.8°	5.01	178.6°	8.22

Loading polar chart…