Tern — ORC Rating | RegattaPages

GPH

650.2

OSN

629.7

LOA

10.025 m

Displacement

4856 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6249

Medium

0.8536

High

0.9812

Triple Offshore

Low

0.8051

Medium

1.0434

High

1.1633

Boat Specifications

Dimensions

Length overall: 10.025 m
Beam: 3.43 m
Draft: 1.91 m
Displacement: 4856 kg
Crew weight: 600 kg
Wetted surface: 23.78 m²

Sails

Mainsail: 33.28 m²
Genoa: 28.88 m²
Spinnaker: 74.32 m²
Asymmetric spinnaker: 58.62 m²

Design

Type: Elan 333
Builder: Elan
Designer: Humphreys
Year built: 1998
Stability index: 110.5

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.

6,43.6,4.598356,52,5.1,60,5.37,75,5.55,90,5.43,110,5.42,120,5.25,135,4.72,144.3,4.223703,150,3.96
8,41.1,5.374465,52,6.02,60,6.26,75,6.42,90,6.42,110,6.5,120,6.35,135,5.83,149.6,5.07818,150,5.06
10,39.6,5.918133,52,6.56,60,6.74,75,6.88,90,6.97,110,7.07,120,6.99,135,6.65,150,6,152.3,5.873094
12,38.2,6.171607,52,6.84,60,7,75,7.15,90,7.29,110,7.43,120,7.39,135,7.13,150,6.7,158.6,6.347632
14,37.6,6.272958,52,6.97,60,7.15,75,7.36,90,7.5,110,7.76,120,7.74,135,7.5,150,7.14,171.8,6.577244
16,37.5,6.352781,52,7.04,60,7.23,75,7.51,90,7.65,110,8.06,120,8.08,135,7.87,150,7.49,178.1,6.98384
20,37.6,6.411797,52,7.1,60,7.31,75,7.68,90,7.99,110,8.55,120,8.81,135,8.66,150,8.19,179,7.651165

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.1	5.37	5.55	5.43	5.42	5.25	4.72	3.96
8	6.02	6.26	6.42	6.42	6.5	6.35	5.83	5.06
10	6.56	6.74	6.88	6.97	7.07	6.99	6.65	6
12	6.84	7	7.15	7.29	7.43	7.39	7.13	6.7
14	6.97	7.15	7.36	7.5	7.76	7.74	7.5	7.14
16	7.04	7.23	7.51	7.65	8.06	8.08	7.87	7.49
20	7.1	7.31	7.68	7.99	8.55	8.81	8.66	8.19

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	3.33	144.3°	3.43
8	41.1°	4.05	149.6°	4.38
10	39.6°	4.56	152.3°	5.2
12	38.2°	4.85	158.6°	5.91
14	37.6°	4.97	171.8°	6.51
16	37.5°	5.04	178.1°	6.98
20	37.6°	5.08	179°	7.65

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