2 ALFA 2 — ORC Rating

GPH

644.5

OSN

626.5

LOA

10.02 m

Displacement

5133 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7229

Medium

0.9672

High

1.1018

Triple Offshore

Low

0.9242

Medium

1.179

High

1.3034

Boat Specifications

Dimensions

Length overall: 10.02 m
Beam: 3.26 m
Draft: 2.16 m
Displacement: 5133 kg
Crew weight: 615 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: 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.

6,41.5,4.633118,52,5.19,60,5.43,75,5.62,90,5.55,110,5.39,120,5.25,135,4.79,146,4.257949,150,4.08
8,40.2,5.420295,52,6.13,60,6.37,75,6.52,90,6.49,110,6.51,120,6.37,135,5.86,150,5.13,150.6,5.096338
10,39.9,6.035206,52,6.65,60,6.81,75,6.94,90,6.95,110,7.06,120,6.99,135,6.69,150,6.03,151.7,5.93996
12,38.6,6.231443,52,6.86,60,7.01,75,7.16,90,7.22,110,7.39,120,7.35,135,7.12,150,6.73,158.1,6.391214
14,38,6.307021,52,6.94,60,7.11,75,7.33,90,7.45,110,7.69,120,7.71,135,7.45,150,7.12,180,6.55
16,37.6,6.336067,52,6.98,60,7.16,75,7.45,90,7.66,110,7.88,120,8.08,135,7.84,150,7.43,180,6.99
20,37.5,6.365386,52,6.99,60,7.19,75,7.54,90,7.98,110,8.22,120,8.57,135,8.69,150,8.17,180,7.62

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.19	5.43	5.62	5.55	5.39	5.25	4.79	4.08
8	6.13	6.37	6.52	6.49	6.51	6.37	5.86	5.13
10	6.65	6.81	6.94	6.95	7.06	6.99	6.69	6.03
12	6.86	7.01	7.16	7.22	7.39	7.35	7.12	6.73
14	6.94	7.11	7.33	7.45	7.69	7.71	7.45	7.12
16	6.98	7.16	7.45	7.66	7.88	8.08	7.84	7.43
20	6.99	7.19	7.54	7.98	8.22	8.57	8.69	8.17

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.5°	3.47	146°	3.53
8	40.2°	4.14	150.6°	4.44
10	39.9°	4.63	151.7°	5.23
12	38.6°	4.87	158.1°	5.93
14	38°	4.97	180°	6.55
16	37.6°	5.02	180°	6.99
20	37.5°	5.05	180°	7.62

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