Etchell — ORC Rating | RegattaPages

GPH

674.3

OSN

653.2

LOA

9.304 m

Displacement

1455 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6638

Medium

0.9206

High

1.0578

Triple Offshore

Low

0.8639

Medium

1.134

High

1.293

Boat Specifications

Dimensions

Length overall: 9.304 m
Beam: 2.09 m
Draft: 1.38 m
Displacement: 1455 kg
Crew weight: 377 kg
Wetted surface: 12.86 m²

Sails

Mainsail: 21.32 m²
Genoa: 9.61 m²
Spinnaker: 43.55 m²
Asymmetric spinnaker: 0 m²

Design

Type: Etchell
Builder: Robertson
Designer: Etchells
Year built: 1971

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.

6,42.8,4.129585,52,4.64,60,4.92,75,5.15,90,5.41,110,5.45,120,5.23,135,4.62,145,4.089595,150,3.87
8,42,5.032666,52,5.64,60,5.9,75,6.09,90,6.37,110,6.41,120,6.3,135,5.79,148.4,5.013344,150,4.93
10,40.6,5.663325,52,6.21,60,6.37,75,6.5,90,6.78,110,6.97,120,6.84,135,6.52,150,5.9,150.5,5.871163
12,38.6,5.873167,52,6.46,60,6.65,75,6.87,90,7.02,110,7.52,120,7.44,135,7.02,150,6.54,160.6,6.159733
14,38.1,5.934416,52,6.56,60,6.81,75,7.19,90,7.32,110,7.93,120,8.1,135,7.6,150,7.01,180,6.39
16,38.1,5.972539,52,6.61,60,6.89,75,7.39,90,7.73,110,8.27,120,8.75,135,8.27,150,7.53,180,6.82
20,38.2,6.057082,52,6.72,60,7,75,7.55,90,8.29,110,8.98,120,9.75,135,10.48,150,8.97,180,7.79

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.64	4.92	5.15	5.41	5.45	5.23	4.62	3.87
8	5.64	5.9	6.09	6.37	6.41	6.3	5.79	4.93
10	6.21	6.37	6.5	6.78	6.97	6.84	6.52	5.9
12	6.46	6.65	6.87	7.02	7.52	7.44	7.02	6.54
14	6.56	6.81	7.19	7.32	7.93	8.1	7.6	7.01
16	6.61	6.89	7.39	7.73	8.27	8.75	8.27	7.53
20	6.72	7	7.55	8.29	8.98	9.75	10.48	8.97

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.03	145°	3.35
8	42°	3.74	148.4°	4.27
10	40.6°	4.3	150.5°	5.11
12	38.6°	4.59	160.6°	5.81
14	38.1°	4.67	180°	6.39
16	38.1°	4.7	180°	6.82
20	38.2°	4.76	180°	7.79

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