Tamara — ORC Rating | RegattaPages

GPH

577.5

OSN

564.4

LOA

12.99 m

Displacement

10125 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7862

Medium

1.0582

High

1.2286

Triple Offshore

Low

1.026

Medium

1.3155

High

1.4755

Boat Specifications

Dimensions

Length overall: 12.99 m
Beam: 4.24 m
Draft: 2.21 m
Displacement: 10125 kg
Crew weight: 865 kg
Wetted surface: 37.07 m²

Sails

Mainsail: 49.58 m²
Genoa: 47.7 m²
Spinnaker: 137.46 m²
Asymmetric spinnaker: 133.93 m²

Design

Type: Sun OD 439
Builder: Jeanneau
Designer: BRIAND PHILIPPE
Year built: 2011

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.

6,44,5.227015,52,5.8,60,6.21,75,6.66,90,6.72,110,6.03,120,5.83,135,5.25,144.7,4.717342,150,4.45
8,42.9,6.156636,52,6.91,60,7.3,75,7.61,90,7.64,110,7.25,120,7.07,135,6.45,148.9,5.640763,150,5.58
10,42.3,6.827728,52,7.53,60,7.81,75,8.03,90,8.05,110,7.96,120,7.85,135,7.44,150,6.58,150.3,6.562046
12,40.5,7.022565,52,7.78,60,8.02,75,8.28,90,8.34,110,8.36,120,8.29,135,8.01,150,7.42,154.2,7.197451
14,39.3,7.146178,52,7.91,60,8.13,75,8.44,90,8.61,110,8.73,120,8.69,135,8.4,150,7.97,163.5,7.425796
16,38.7,7.226781,52,7.98,60,8.2,75,8.56,90,8.86,110,9.08,120,9.12,135,8.81,150,8.34,180,7.72
20,38.7,7.316476,52,8.05,60,8.29,75,8.73,90,9.22,110,9.73,120,9.92,135,9.71,150,9.12,180,8.47

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.8	6.21	6.66	6.72	6.03	5.83	5.25	4.45
8	6.91	7.3	7.61	7.64	7.25	7.07	6.45	5.58
10	7.53	7.81	8.03	8.05	7.96	7.85	7.44	6.58
12	7.78	8.02	8.28	8.34	8.36	8.29	8.01	7.42
14	7.91	8.13	8.44	8.61	8.73	8.69	8.4	7.97
16	7.98	8.2	8.56	8.86	9.08	9.12	8.81	8.34
20	8.05	8.29	8.73	9.22	9.73	9.92	9.71	9.12

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44°	3.76	144.7°	3.85
8	42.9°	4.51	148.9°	4.83
10	42.3°	5.05	150.3°	5.7
12	40.5°	5.34	154.2°	6.48
14	39.3°	5.53	163.5°	7.12
16	38.7°	5.64	180°	7.72
20	38.7°	5.71	180°	8.47

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