ARGONAFTIS — ORC Rating

GPH

685.5

OSN

666

LOA

9.86 m

Displacement

3686 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5894

Medium

0.8024

High

0.9168

Triple Offshore

Low

0.7608

Medium

0.9907

High

1.1034

Boat Specifications

Dimensions

Length overall: 9.86 m
Beam: 3.31 m
Draft: 1.71 m
Displacement: 3686 kg
Crew weight: 470 kg
Wetted surface: 20.12 m²

Sails

Mainsail: 21.91 m²
Genoa: 31.23 m²
Spinnaker: 60.63 m²
Asymmetric spinnaker: 0 m²

Design

Type: ELAN 31
Builder: ELAN 31
Designer: JAKOPIN J.
Year built: 1984

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.

6,43.1,4.245632,52,4.76,60,5.05,75,5.28,90,5.22,110,5.07,120,4.92,135,4.48,147,3.958646,150,3.83
8,42,5.005754,52,5.65,60,5.96,75,6.19,90,6.18,110,6.18,120,6.03,135,5.53,150,4.84,150.5,4.814124
10,41.8,5.660813,52,6.26,60,6.47,75,6.64,90,6.68,110,6.78,120,6.71,135,6.39,150,5.72,152,5.617547
12,40.7,5.935624,52,6.54,60,6.72,75,6.89,90,6.95,110,7.14,120,7.09,135,6.86,150,6.44,157.5,6.12634
14,40.5,6.062551,52,6.65,60,6.85,75,7.09,90,7.19,110,7.47,120,7.46,135,7.21,150,6.86,180,6.27
16,40.5,6.115155,52,6.7,60,6.92,75,7.24,90,7.42,110,7.76,120,7.82,135,7.59,150,7.19,180,6.73
20,42,6.136085,52,6.69,60,6.94,75,7.37,90,7.77,110,8.08,120,8.42,135,8.35,150,7.89,180,7.38

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.76	5.05	5.28	5.22	5.07	4.92	4.48	3.83
8	5.65	5.96	6.19	6.18	6.18	6.03	5.53	4.84
10	6.26	6.47	6.64	6.68	6.78	6.71	6.39	5.72
12	6.54	6.72	6.89	6.95	7.14	7.09	6.86	6.44
14	6.65	6.85	7.09	7.19	7.47	7.46	7.21	6.86
16	6.7	6.92	7.24	7.42	7.76	7.82	7.59	7.19
20	6.69	6.94	7.37	7.77	8.08	8.42	8.35	7.89

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.1°	3.1	147°	3.32
8	42°	3.72	150.5°	4.19
10	41.8°	4.22	152°	4.96
12	40.7°	4.5	157.5°	5.66
14	40.5°	4.61	180°	6.27
16	40.5°	4.65	180°	6.73
20	42°	4.56	180°	7.38

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