DAKOTA — ORC Rating | RegattaPages

GPH

563.5

OSN

546.5

LOA

14.506 m

Displacement

11845 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7075

Medium

0.9742

High

1.1113

Triple Offshore

Low

0.9189

Medium

1.2095

High

1.3526

Boat Specifications

Dimensions

Length overall: 14.506 m
Beam: 4.51 m
Draft: 2.28 m
Displacement: 11845 kg
Crew weight: 1143 kg
Wetted surface: 43.98 m²

Sails

Mainsail: 62.84 m²
Genoa: 69.06 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 172.52 m²

Design

Type: FIRST 47.7 SD
Builder: BENETEAU
Designer: FARR Bruce
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.

6,44.4,5.290615,52,5.85,60,6.22,75,6.49,90,6.35,110,6.12,120,5.98,135,5.28,142.8,4.84602,150,4.45
8,42.5,6.279862,52,6.99,60,7.3,75,7.51,90,7.44,110,7.46,120,7.33,135,6.72,146.4,5.918927,150,5.7
10,40.9,6.959021,52,7.7,60,7.93,75,8.1,90,8.1,110,8.27,120,8.19,135,7.77,146.7,7.082972,150,6.84
12,39.7,7.278403,52,8.06,60,8.27,75,8.45,90,8.5,110,8.74,120,8.71,135,8.41,149.5,7.764361,150,7.73
14,39,7.424603,52,8.23,60,8.46,75,8.7,90,8.8,110,9.13,120,9.16,135,8.88,150,8.25,150.1,8.24781
16,38.6,7.511,52,8.33,60,8.56,75,8.88,90,9.07,110,9.46,120,9.58,135,9.33,150,8.61,166.7,7.6656
20,38.9,7.645425,52,8.42,60,8.68,75,9.1,90,9.48,110,9.9,120,10.37,135,10.31,150,9.24,175.8,8.442673
24,39.6,7.68319,52,8.45,60,8.73,75,9.24,90,9.74,110,10.29,120,10.96,135,11.61,150,9.94,176.2,9.110029

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.85	6.22	6.49	6.35	6.12	5.98	5.28	4.45
8	6.99	7.3	7.51	7.44	7.46	7.33	6.72	5.7
10	7.7	7.93	8.1	8.1	8.27	8.19	7.77	6.84
12	8.06	8.27	8.45	8.5	8.74	8.71	8.41	7.73
14	8.23	8.46	8.7	8.8	9.13	9.16	8.88	8.25
16	8.33	8.56	8.88	9.07	9.46	9.58	9.33	8.61
20	8.42	8.68	9.1	9.48	9.9	10.37	10.31	9.24
24	8.45	8.73	9.24	9.74	10.29	10.96	11.61	9.94

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.4°	3.78	142.8°	3.86
8	42.5°	4.63	146.4°	4.93
10	40.9°	5.26	146.7°	5.92
12	39.7°	5.6	149.5°	6.69
14	39°	5.77	150.1°	7.15
16	38.6°	5.87	166.7°	7.46
20	38.9°	5.95	175.8°	8.42
24	39.6°	5.92	176.2°	9.09

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