2 ALFA 2 — ORC Rating

GPH

643.2

OSN

626.1

LOA

10.02 m

Displacement

5133 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.644

Medium

0.8599

High

0.9793

Triple Offshore

Low

0.8255

Medium

1.0486

High

1.1588

Boat Specifications

Dimensions

Length overall: 10.02 m
Beam: 3.26 m
Draft: 2.16 m
Displacement: 5133 kg
Crew weight: 610 kg
Wetted surface: 24.62 m²

Sails

Mainsail: 32.04 m²
Genoa: 38.43 m²
Spinnaker: 80.58 m²
Asymmetric spinnaker: 0 m²

Design

Type: Grand Soleil 341
Builder: Cantieri del Pardo
Designer: Vismara
Year built: 1999

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.

6,42,4.682802,52,5.24,60,5.5,75,5.72,90,5.64,110,5.44,120,5.29,135,4.81,146,4.282074,150,4.1
8,40.1,5.412321,52,6.14,60,6.38,75,6.55,90,6.55,110,6.53,120,6.41,135,5.89,150,5.14,150.5,5.112852
10,39.9,6.022171,52,6.65,60,6.81,75,6.94,90,6.97,110,7.06,120,7,135,6.71,150,6.04,151.5,5.96256
12,38.6,6.218647,52,6.86,60,7.01,75,7.16,90,7.22,110,7.39,120,7.36,135,7.13,150,6.74,158,6.406496
14,38.1,6.302935,52,6.94,60,7.11,75,7.33,90,7.45,110,7.69,120,7.72,135,7.47,150,7.13,180,6.56
16,37.7,6.331965,52,6.98,60,7.16,75,7.44,90,7.66,110,7.89,120,8.09,135,7.86,150,7.44,180,7
20,37.5,6.352781,52,7,60,7.19,75,7.54,90,7.98,110,8.22,120,8.58,135,8.7,150,8.19,180,7.63

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.24	5.5	5.72	5.64	5.44	5.29	4.81	4.1
8	6.14	6.38	6.55	6.55	6.53	6.41	5.89	5.14
10	6.65	6.81	6.94	6.97	7.06	7	6.71	6.04
12	6.86	7.01	7.16	7.22	7.39	7.36	7.13	6.74
14	6.94	7.11	7.33	7.45	7.69	7.72	7.47	7.13
16	6.98	7.16	7.44	7.66	7.89	8.09	7.86	7.44
20	7	7.19	7.54	7.98	8.22	8.58	8.7	8.19

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.48	146°	3.55
8	40.1°	4.14	150.5°	4.45
10	39.9°	4.62	151.5°	5.24
12	38.6°	4.86	158°	5.94
14	38.1°	4.96	180°	6.56
16	37.7°	5.01	180°	7
20	37.5°	5.04	180°	7.63

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