ALPHA — ORC Rating | RegattaPages

GPH

642

OSN

621.7

LOA

9.99 m

Displacement

5098 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6341

Medium

0.864

High

0.992

Triple Offshore

Low

0.8156

Medium

1.0561

High

1.1791

Boat Specifications

Dimensions

Length overall: 9.99 m
Beam: 3.47 m
Draft: 2.05 m
Displacement: 5098 kg
Crew weight: 475 kg
Wetted surface: 24.42 m²

Sails

Mainsail: 32.06 m²
Genoa: 31.84 m²
Spinnaker: 78.52 m²
Asymmetric spinnaker: 0 m²

Design

Type: ELAN 340
Builder: Elan
Designer: Humphreys
Year built: 2006
Stability index: 125.7

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.

6,43.5,4.632091,52,5.13,60,5.42,75,5.61,90,5.5,110,5.49,120,5.32,135,4.79,144.3,4.309901,150,4.05
8,41.2,5.42254,52,6.06,60,6.31,75,6.49,90,6.45,110,6.58,120,6.45,135,5.94,149.3,5.198567,150,5.16
10,39.9,5.983066,52,6.63,60,6.81,75,6.96,90,7.01,110,7.16,120,7.09,135,6.76,150,6.11,152.4,5.980567
12,38.4,6.239685,52,6.92,60,7.09,75,7.25,90,7.31,110,7.54,120,7.5,135,7.24,150,6.81,158.6,6.455037
14,38.1,6.37918,52,7.07,60,7.26,75,7.46,90,7.54,110,7.88,120,7.89,135,7.64,150,7.25,171.2,6.678618
16,37.8,6.441774,52,7.14,60,7.35,75,7.64,90,7.78,110,8.16,120,8.24,135,8.03,150,7.62,177.2,7.088463
20,38.2,6.489731,52,7.2,60,7.43,75,7.84,90,8.16,110,8.5,120,8.91,135,8.89,150,8.38,179,7.781185

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.13	5.42	5.61	5.5	5.49	5.32	4.79	4.05
8	6.06	6.31	6.49	6.45	6.58	6.45	5.94	5.16
10	6.63	6.81	6.96	7.01	7.16	7.09	6.76	6.11
12	6.92	7.09	7.25	7.31	7.54	7.5	7.24	6.81
14	7.07	7.26	7.46	7.54	7.88	7.89	7.64	7.25
16	7.14	7.35	7.64	7.78	8.16	8.24	8.03	7.62
20	7.2	7.43	7.84	8.16	8.5	8.91	8.89	8.38

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.36	144.3°	3.5
8	41.2°	4.08	149.3°	4.47
10	39.9°	4.59	152.4°	5.3
12	38.4°	4.89	158.6°	6.01
14	38.1°	5.02	171.2°	6.6
16	37.8°	5.09	177.2°	7.08
20	38.2°	5.1	179°	7.78

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