Tern — ORC Rating | RegattaPages

GPH

659

OSN

638.1

LOA

10.025 m

Displacement

4856 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6095

Medium

0.8398

High

0.9735

Triple Offshore

Low

0.7878

Medium

1.0317

High

1.1587

Boat Specifications

Dimensions

Length overall: 10.025 m
Beam: 3.43 m
Draft: 1.91 m
Displacement: 4856 kg
Crew weight: 612 kg
Wetted surface: 23.8 m²

Sails

Mainsail: 32.23 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.

6,43.2,4.376046,52,4.9,60,5.19,75,5.4,90,5.34,110,5.36,120,5.2,135,4.7,144.8,4.20978,150,3.97
8,42,5.194142,52,5.82,60,6.12,75,6.34,90,6.4,110,6.48,120,6.33,135,5.77,150,5.03,150.5,4.997957
10,41.2,5.834547,52,6.47,60,6.67,75,6.83,90,6.97,110,7.05,120,6.97,135,6.63,150,5.95,152,5.844061
12,39.4,6.172891,52,6.79,60,6.96,75,7.1,90,7.28,110,7.4,120,7.34,135,7.09,150,6.69,157.7,6.366124
14,38.4,6.290725,52,6.94,60,7.12,75,7.31,90,7.5,110,7.75,120,7.71,135,7.44,150,7.1,171.2,6.567308
16,38.1,6.353765,52,7.01,60,7.2,75,7.48,90,7.64,110,8.12,120,8.11,135,7.83,150,7.43,178.4,6.952711
20,38.4,6.380046,52,7.05,60,7.26,75,7.67,90,8.06,110,8.64,120,8.92,135,8.7,150,8.19,179,7.601158

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.9	5.19	5.4	5.34	5.36	5.2	4.7	3.97
8	5.82	6.12	6.34	6.4	6.48	6.33	5.77	5.03
10	6.47	6.67	6.83	6.97	7.05	6.97	6.63	5.95
12	6.79	6.96	7.1	7.28	7.4	7.34	7.09	6.69
14	6.94	7.12	7.31	7.5	7.75	7.71	7.44	7.1
16	7.01	7.2	7.48	7.64	8.12	8.11	7.83	7.43
20	7.05	7.26	7.67	8.06	8.64	8.92	8.7	8.19

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	3.19	144.8°	3.44
8	42°	3.86	150.5°	4.35
10	41.2°	4.39	152°	5.16
12	39.4°	4.77	157.7°	5.89
14	38.4°	4.93	171.2°	6.49
16	38.1°	5	178.4°	6.95
20	38.4°	5	179°	7.6

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