Beaufort 8.3 — ORC Rating

GPH

700.4

OSN

684.1

LOA

8.3 m

Displacement

1545 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6487

Medium

0.8594

High

0.9513

Triple Offshore

Low

0.8489

Medium

1.0875

High

1.1976

Boat Specifications

Dimensions

Length overall: 8.3 m
Beam: 2.18 m
Draft: 1.15 m
Displacement: 1545 kg
Crew weight: 320 kg
Wetted surface: 14.4 m²

Sails

Mainsail: 21.33 m²
Genoa: 11.71 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 45.32 m²

Design

Type: Beaufort 8.3
Builder: beaufort
Designer: bosgraaf
Year built: 2011

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.

6,45.2,4.087227,52,4.49,60,4.81,75,5.08,90,5.32,110,5.39,120,5.2,135,4.64,144.5,4.164028,150,3.91
8,44.2,4.951803,52,5.49,60,5.85,75,6.13,90,6.35,110,6.48,120,6.35,135,5.84,146.9,5.156862,150,4.99
10,43.8,5.458877,52,6.05,60,6.36,75,6.6,90,6.65,110,6.98,120,6.91,135,6.59,148.2,6.059589,150,5.95
12,44.1,5.611826,52,6.19,60,6.5,75,6.84,90,6.99,110,7.38,120,7.49,135,7.09,150,6.53,150.5,6.503088
14,44.7,5.669672,52,6.22,60,6.55,75,6.96,90,7.33,110,7.69,120,8.06,135,7.71,150,6.9,175.1,6.152486
16,44.8,5.792234,52,6.31,60,6.55,75,7.02,90,7.59,110,8,120,8.46,135,8.47,150,7.37,177.7,6.625337
20,47.1,5.817362,52,6.24,60,6.63,75,7.17,90,7.77,110,8.53,120,9.25,135,10.38,141.1,9.868381,150,8.87

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.49	4.81	5.08	5.32	5.39	5.2	4.64	3.91
8	5.49	5.85	6.13	6.35	6.48	6.35	5.84	4.99
10	6.05	6.36	6.6	6.65	6.98	6.91	6.59	5.95
12	6.19	6.5	6.84	6.99	7.38	7.49	7.09	6.53
14	6.22	6.55	6.96	7.33	7.69	8.06	7.71	6.9
16	6.31	6.55	7.02	7.59	8	8.46	8.47	7.37
20	6.24	6.63	7.17	7.77	8.53	9.25	10.38	8.87

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.2°	2.88	144.5°	3.39
8	44.2°	3.55	146.9°	4.32
10	43.8°	3.94	148.2°	5.15
12	44.1°	4.03	150.5°	5.66
14	44.7°	4.03	175.1°	6.13
16	44.8°	4.11	177.7°	6.62
20	47.1°	3.96	141.1°	7.68

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