Southern Star — ORC Rating

GPH

642.6

OSN

626.2

LOA

10.53 m

Displacement

4116 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6471

Medium

0.8494

High

0.9404

Triple Offshore

Low

0.8311

Medium

1.0491

High

1.1454

Boat Specifications

Dimensions

Length overall: 10.53 m
Beam: 3.33 m
Draft: 1.93 m
Displacement: 4116 kg
Crew weight: 593 kg
Wetted surface: 23.45 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
Stability index: 107.5

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.

6,43.6,4.625974,52,5.13,60,5.41,75,5.6,90,5.64,110,5.71,120,5.55,135,5.01,144.2,4.54958,150,4.26
8,41.4,5.425863,52,6.04,60,6.29,75,6.46,90,6.61,110,6.74,120,6.62,135,6.16,147.8,5.495199,150,5.37
10,40,5.913495,52,6.57,60,6.77,75,6.92,90,7.05,110,7.26,120,7.21,135,6.91,149.2,6.321599,150,6.27
12,39.6,6.09983,52,6.78,60,6.99,75,7.2,90,7.26,110,7.63,120,7.65,135,7.39,150,6.86,150.1,6.852027
14,39.6,6.1777,52,6.86,60,7.08,75,7.38,90,7.53,110,7.9,120,8.06,135,7.84,150,7.22,171.8,6.405488
16,39.6,6.203657,52,6.9,60,7.13,75,7.48,90,7.75,110,8.1,120,8.41,135,8.31,150,7.55,175.4,6.862104
20,40.8,6.235179,52,6.91,60,7.17,75,7.58,90,8,110,8.46,120,8.97,135,9.5,150,8.23,176.3,7.555749

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.13	5.41	5.6	5.64	5.71	5.55	5.01	4.26
8	6.04	6.29	6.46	6.61	6.74	6.62	6.16	5.37
10	6.57	6.77	6.92	7.05	7.26	7.21	6.91	6.27
12	6.78	6.99	7.2	7.26	7.63	7.65	7.39	6.86
14	6.86	7.08	7.38	7.53	7.9	8.06	7.84	7.22
16	6.9	7.13	7.48	7.75	8.1	8.41	8.31	7.55
20	6.91	7.17	7.58	8	8.46	8.97	9.5	8.23

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	3.35	144.2°	3.69
8	41.4°	4.07	147.8°	4.65
10	40°	4.53	149.2°	5.43
12	39.6°	4.7	150.1°	5.94
14	39.6°	4.76	171.8°	6.34
16	39.6°	4.78	175.4°	6.84
20	40.8°	4.72	176.3°	7.54

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