Tara — ORC Rating | RegattaPages

GPH

691.1

OSN

671.9

LOA

9.06 m

Displacement

1980 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5833

Medium

0.7925

High

0.9099

Triple Offshore

Low

0.7581

Medium

0.9806

High

1.0991

Boat Specifications

Dimensions

Length overall: 9.06 m
Beam: 1.93 m
Draft: 1.32 m
Displacement: 1980 kg
Crew weight: 355 kg
Wetted surface: 15.33 m²

Sails

Mainsail: 24.7 m²
Genoa: 10.35 m²
Spinnaker: 48.05 m²
Asymmetric spinnaker: 0 m²

Design

Type: INTERNATIONAL 5.5
Builder: Vator Oy
Designer: Britton Change Jr.
Year built: 1950

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.

6,42.4,4.089618,52,4.61,60,4.89,75,5.11,90,5.3,110,5.34,120,5.12,135,4.51,146,3.980519,150,3.81
8,42,4.992297,52,5.58,60,5.84,75,6.02,90,6.27,110,6.35,120,6.22,135,5.66,149,4.888194,150,4.83
10,41.2,5.528864,52,6.14,60,6.35,75,6.49,90,6.54,110,6.86,120,6.76,135,6.46,150,5.796597
12,40.5,5.668025,52,6.32,60,6.55,75,6.81,90,6.84,110,7.17,120,7.27,135,6.92,150,6.5,159.5,6.138754
14,40.5,5.760081,52,6.4,60,6.64,75,6.99,90,7.19,110,7.41,120,7.67,135,7.41,150,6.92,180,6.35
16,39.6,5.879198,52,6.47,60,6.68,75,7.08,90,7.47,110,7.63,120,7.93,135,7.93,150,7.36,180,6.77
20,40.5,5.970495,52,6.58,60,6.83,75,7.21,90,7.68,110,8.06,120,8.49,135,9.34,150,8.43,179,7.621161

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.61	4.89	5.11	5.3	5.34	5.12	4.51	3.81
8	5.58	5.84	6.02	6.27	6.35	6.22	5.66	4.83
10	6.14	6.35	6.49	6.54	6.86	6.76	6.46	5.8
12	6.32	6.55	6.81	6.84	7.17	7.27	6.92	6.5
14	6.4	6.64	6.99	7.19	7.41	7.67	7.41	6.92
16	6.47	6.68	7.08	7.47	7.63	7.93	7.93	7.36
20	6.58	6.83	7.21	7.68	8.06	8.49	9.34	8.43

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.02	146°	3.3
8	42°	3.71	149°	4.19
10	41.2°	4.16	150°	5.02
12	40.5°	4.31	159.5°	5.75
14	40.5°	4.38	180°	6.35
16	39.6°	4.53	180°	6.77
20	40.5°	4.54	179°	7.62

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