Southern Star — ORC Rating

GPH

640.8

OSN

624

LOA

10.53 m

Displacement

4136 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7109

Medium

0.9565

High

1.0947

Triple Offshore

Low

0.9227

Medium

1.1875

High

1.3309

Boat Specifications

Dimensions

Length overall: 10.53 m
Beam: 3.33 m
Draft: 1.93 m
Displacement: 4136 kg
Crew weight: 605 kg
Wetted surface: 23.57 m²

Sails

Mainsail: 37.89 m²
Genoa: 25.51 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 89.77 m²

Design

Type: Lavranos 34
Builder: Robertson and Cain
Designer: Lavranos
Year built: 1986

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.

6,43.7,4.4677,52,4.98,60,5.31,75,5.62,90,5.69,110,5.73,120,5.56,135,5,144.9,4.497954,150,4.25
8,42.4,5.281294,52,5.94,60,6.29,75,6.56,90,6.74,110,6.79,120,6.66,135,6.15,148.2,5.424214,150,5.32
10,42.2,5.979984,52,6.6,60,6.83,75,7.01,90,7.22,110,7.29,120,7.2,135,6.91,148.7,6.331493,150,6.25
12,40.5,6.286116,52,6.92,60,7.11,75,7.31,90,7.43,110,7.77,120,7.64,135,7.33,150,6.84,150.7,6.799919
14,39.3,6.370824,52,7.04,60,7.26,75,7.58,90,7.68,110,8.17,120,8.17,135,7.78,150,7.19,174.9,6.415398
16,38.9,6.424727,52,7.1,60,7.34,75,7.78,90,8.02,110,8.42,120,8.72,135,8.28,150,7.49,177.5,6.896564
20,39.2,6.568212,52,7.18,60,7.39,75,7.92,90,8.5,110,8.9,120,9.41,135,9.53,150,8.33,177.8,7.565576

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.98	5.31	5.62	5.69	5.73	5.56	5	4.25
8	5.94	6.29	6.56	6.74	6.79	6.66	6.15	5.32
10	6.6	6.83	7.01	7.22	7.29	7.2	6.91	6.25
12	6.92	7.11	7.31	7.43	7.77	7.64	7.33	6.84
14	7.04	7.26	7.58	7.68	8.17	8.17	7.78	7.19
16	7.1	7.34	7.78	8.02	8.42	8.72	8.28	7.49
20	7.18	7.39	7.92	8.5	8.9	9.41	9.53	8.33

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.7°	3.23	144.9°	3.68
8	42.4°	3.9	148.2°	4.61
10	42.2°	4.43	148.7°	5.41
12	40.5°	4.78	150.7°	5.93
14	39.3°	4.93	174.9°	6.39
16	38.9°	5	177.5°	6.89
20	39.2°	5.09	177.8°	7.56

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