Lea Berenice — ORC Rating

GPH

670.8

OSN

652.4

LOA

11.9 m

Displacement

6504 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5948

Medium

0.8122

High

0.9445

Triple Offshore

Low

0.7746

Medium

1.0147

High

1.1319

Boat Specifications

Dimensions

Length overall: 11.9 m
Beam: 2.26 m
Draft: 1.72 m
Displacement: 6504 kg
Crew weight: 450 kg
Wetted surface: 25.04 m²

Sails

Mainsail: 42.89 m²
Genoa: 24.19 m²
Spinnaker: 76.26 m²
Asymmetric spinnaker: 0 m²

Design

Type: Amer. 7.5m
Builder: Åbo Båtvarv
Designer: August Westin
Year built: 1908

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.

6,43.5,4.315013,52,4.8,60,5.08,75,5.31,90,5.33,110,5.36,120,5.17,135,4.56,145.5,4.028509,150,3.83
8,41.2,5.063696,52,5.73,60,6.06,75,6.33,90,6.44,110,6.54,120,6.37,135,5.69,150,4.872836
10,42,5.692026,52,6.4,60,6.7,75,6.91,90,6.93,110,7.16,120,7.07,135,6.71,148,5.978435,150,5.86
12,42,6.001522,52,6.68,60,6.96,75,7.19,90,7.26,110,7.45,120,7.44,135,7.21,150,6.73,155.5,6.461813
14,41.8,6.15714,52,6.82,60,7.08,75,7.35,90,7.48,110,7.61,120,7.74,135,7.54,150,7.19,174,6.565969
16,41.6,6.245001,52,6.9,60,7.15,75,7.44,90,7.65,110,7.75,120,7.95,135,7.85,150,7.51,180,7.05
20,41,6.386563,52,7.03,60,7.23,75,7.52,90,7.86,110,7.99,120,8.25,135,8.53,150,8.14,180,7.68

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.8	5.08	5.31	5.33	5.36	5.17	4.56	3.83
8	5.73	6.06	6.33	6.44	6.54	6.37	5.69	4.87
10	6.4	6.7	6.91	6.93	7.16	7.07	6.71	5.86
12	6.68	6.96	7.19	7.26	7.45	7.44	7.21	6.73
14	6.82	7.08	7.35	7.48	7.61	7.74	7.54	7.19
16	6.9	7.15	7.44	7.65	7.75	7.95	7.85	7.51
20	7.03	7.23	7.52	7.86	7.99	8.25	8.53	8.14

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.13	145.5°	3.32
8	41.2°	3.81	150°	4.22
10	42°	4.23	148°	5.07
12	42°	4.46	155.5°	5.88
14	41.8°	4.59	174°	6.53
16	41.6°	4.67	180°	7.05
20	41°	4.82	180°	7.68

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