WINDSONG 2 — ORC Rating

GPH

685.6

OSN

662.5

LOA

9.3 m

Displacement

1703 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5782

Medium

0.8078

High

0.9407

Triple Offshore

Low

0.7534

Medium

0.9925

High

1.133

Boat Specifications

Dimensions

Length overall: 9.3 m
Beam: 2.09 m
Draft: 1.41 m
Displacement: 1703 kg
Crew weight: 396 kg
Wetted surface: 13.71 m²

Sails

Mainsail: 21.95 m²
Genoa: 9.28 m²
Spinnaker: 44.74 m²
Asymmetric spinnaker: 0 m²

Design

Type: Cruising Etchells
Builder: Smidmore / Pamcraf
Designer: Etchells
Year built: 1967
Stability index: 112.3

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.

6,44.2,4.059083,52,4.49,60,4.78,75,5,90,5.32,110,5.36,120,5.18,135,4.64,144.2,4.142707,150,3.88
8,43.5,4.949169,52,5.5,60,5.79,75,5.98,90,6.29,110,6.37,120,6.25,135,5.79,147.8,5.057947,150,4.95
10,41.7,5.544854,52,6.1,60,6.29,75,6.44,90,6.67,110,6.86,120,6.77,135,6.47,150,5.89,151.4,5.820158
12,39,5.816153,52,6.39,60,6.56,75,6.73,90,6.87,110,7.32,120,7.31,135,6.93,150,6.51,160.1,6.147052
14,38.1,5.947124,52,6.54,60,6.75,75,7.02,90,7.14,110,7.67,120,7.85,135,7.47,150,6.93,175.4,6.340423
16,37.6,5.995282,52,6.61,60,6.85,75,7.27,90,7.49,110,7.96,120,8.38,135,8.07,150,7.42,177.2,6.738044
20,37.1,6.068327,52,6.69,60,6.95,75,7.5,90,8.11,110,8.51,120,9.14,135,9.81,150,8.61,174.8,7.661532

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.49	4.78	5	5.32	5.36	5.18	4.64	3.88
8	5.5	5.79	5.98	6.29	6.37	6.25	5.79	4.95
10	6.1	6.29	6.44	6.67	6.86	6.77	6.47	5.89
12	6.39	6.56	6.73	6.87	7.32	7.31	6.93	6.51
14	6.54	6.75	7.02	7.14	7.67	7.85	7.47	6.93
16	6.61	6.85	7.27	7.49	7.96	8.38	8.07	7.42
20	6.69	6.95	7.5	8.11	8.51	9.14	9.81	8.61

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	2.91	144.2°	3.36
8	43.5°	3.59	147.8°	4.28
10	41.7°	4.14	151.4°	5.11
12	39°	4.52	160.1°	5.78
14	38.1°	4.68	175.4°	6.32
16	37.6°	4.75	177.2°	6.73
20	37.1°	4.84	174.8°	7.63

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