AMNESIA — ORC Rating | RegattaPages

GPH

588.8

OSN

572.7

LOA

14.506 m

Displacement

12044 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6511

Medium

0.9178

High

1.0818

Triple Offshore

Low

0.8627

Medium

1.1629

High

1.3301

Boat Specifications

Dimensions

Length overall: 14.506 m
Beam: 4.51 m
Draft: 2.29 m
Displacement: 12044 kg
Crew weight: 500 kg
Wetted surface: 44.04 m²

Sails

Mainsail: 56.83 m²
Genoa: 56.68 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 148.98 m²

Design

Type: First 47.7 SD
Builder: Beneteau
Designer: Farr
Year built: 1998

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.

6,44.6,4.747017,52,5.27,60,5.64,75,6.22,90,6.45,110,6.14,120,5.79,135,5.02,144,4.524009,150,4.22
8,43.1,5.697364,52,6.36,60,6.78,75,7.42,90,7.64,110,7.38,120,7.03,135,6.38,147,5.568337,150,5.39
10,42.4,6.472971,52,7.22,60,7.6,75,8.1,90,8.29,110,8.15,120,8,135,7.49,146,6.791007,150,6.5
12,41.6,7.033984,52,7.8,60,8.06,75,8.44,90,8.67,110,8.61,120,8.53,135,8.2,148.5,7.541282,150,7.42
14,40.9,7.342693,52,8.1,60,8.33,75,8.65,90,8.99,110,9.01,120,8.95,135,8.64,149.5,8.054509,150,8.02
16,40.1,7.451746,52,8.24,60,8.49,75,8.81,90,9.29,110,9.43,120,9.41,135,9.05,150,8.39,174,7.330155
20,39.8,7.549296,52,8.35,60,8.62,75,9.1,90,9.69,110,10.06,120,10.36,135,10,150,8.99,178,8.315065

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.27	5.64	6.22	6.45	6.14	5.79	5.02	4.22
8	6.36	6.78	7.42	7.64	7.38	7.03	6.38	5.39
10	7.22	7.6	8.1	8.29	8.15	8	7.49	6.5
12	7.8	8.06	8.44	8.67	8.61	8.53	8.2	7.42
14	8.1	8.33	8.65	8.99	9.01	8.95	8.64	8.02
16	8.24	8.49	8.81	9.29	9.43	9.41	9.05	8.39
20	8.35	8.62	9.1	9.69	10.06	10.36	10	8.99

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.6°	3.38	144°	3.66
8	43.1°	4.16	147°	4.67
10	42.4°	4.78	146°	5.63
12	41.6°	5.26	148.5°	6.43
14	40.9°	5.55	149.5°	6.94
16	40.1°	5.7	174°	7.29
20	39.8°	5.8	178°	8.31

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