Southern Star — ORC Rating

GPH

642.1

OSN

625.1

LOA

10.53 m

Displacement

4116 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6447

Medium

0.8519

High

0.9513

Triple Offshore

Low

0.8285

Medium

1.0509

High

1.1539

Boat Specifications

Dimensions

Length overall: 10.53 m
Beam: 3.33 m
Draft: 1.93 m
Displacement: 4116 kg
Crew weight: 650 kg
Wetted surface: 23.71 m²

Sails

Mainsail: 37.72 m²
Genoa: 25.02 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 88.66 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.

6,43.6,4.612165,52,5.11,60,5.39,75,5.58,90,5.63,110,5.69,120,5.53,135,5,144.1,4.542976,150,4.24
8,41.6,5.4159,52,6.03,60,6.28,75,6.45,90,6.61,110,6.73,120,6.6,135,6.14,148,5.471388,150,5.36
10,40,5.926549,52,6.58,60,6.77,75,6.92,90,7.06,110,7.26,120,7.2,135,6.9,148.9,6.329801,150,6.26
12,39.3,6.138218,52,6.81,60,7.01,75,7.21,90,7.26,110,7.64,120,7.64,135,7.37,149.9,6.854291,150,6.84
14,39.1,6.223855,52,6.9,60,7.11,75,7.39,90,7.53,110,7.91,120,8.04,135,7.82,150,7.21,171.7,6.386898
16,39.2,6.271417,52,6.96,60,7.17,75,7.5,90,7.75,110,8.12,120,8.41,135,8.27,150,7.52,175.4,6.842039
20,39.7,6.316614,52,7.01,60,7.24,75,7.64,90,8.03,110,8.48,120,8.98,135,9.42,150,8.19,176.8,7.531744
24,41.6,6.285119,52,6.95,60,7.23,75,7.69,90,8.18,110,8.81,120,9.56,135,11.62,139.9,11.426011,150,10.1

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.11	5.39	5.58	5.63	5.69	5.53	5	4.24
8	6.03	6.28	6.45	6.61	6.73	6.6	6.14	5.36
10	6.58	6.77	6.92	7.06	7.26	7.2	6.9	6.26
12	6.81	7.01	7.21	7.26	7.64	7.64	7.37	6.84
14	6.9	7.11	7.39	7.53	7.91	8.04	7.82	7.21
16	6.96	7.17	7.5	7.75	8.12	8.41	8.27	7.52
20	7.01	7.24	7.64	8.03	8.48	8.98	9.42	8.19
24	6.95	7.23	7.69	8.18	8.81	9.56	11.62	10.1

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	3.34	144.1°	3.68
8	41.6°	4.05	148°	4.64
10	40°	4.54	148.9°	5.42
12	39.3°	4.75	149.9°	5.93
14	39.1°	4.83	171.7°	6.32
16	39.2°	4.86	175.4°	6.82
20	39.7°	4.86	176.8°	7.52
24	41.6°	4.7	139.9°	8.74

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