Beaufort 8.3 — ORC Rating

GPH

702.6

OSN

687.1

LOA

8.3 m

Displacement

1545 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6464

Medium

0.8553

High

0.9421

Triple Offshore

Low

0.8482

Medium

1.0832

High

1.1879

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.

6,46.7,4.1702,52,4.52,60,4.88,75,5.18,90,5.33,110,5.42,120,5.23,135,4.65,144.3,4.174447,150,3.92
8,44.3,4.918312,52,5.45,60,5.82,75,6.13,90,6.32,110,6.47,120,6.36,135,5.85,146.8,5.174695,150,5
10,43.9,5.426402,52,6.02,60,6.33,75,6.58,90,6.64,110,6.96,120,6.91,135,6.6,148.2,6.059589,150,5.95
12,44.4,5.598535,52,6.15,60,6.47,75,6.82,90,6.97,110,7.36,120,7.48,135,7.1,150,6.53,150.5,6.503088
14,44.9,5.632889,52,6.17,60,6.52,75,6.93,90,7.3,110,7.65,120,8.05,135,7.72,150,6.9,174.9,6.154365
16,45,5.741707,52,6.26,60,6.55,75,6.98,90,7.55,110,7.94,120,8.44,135,8.46,150,7.37,177.6,6.625812
20,48,5.783624,52,6.15,60,6.57,75,7.11,90,7.7,110,8.49,120,9.21,135,10.35,141.2,9.854518,150,8.87

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.52	4.88	5.18	5.33	5.42	5.23	4.65	3.92
8	5.45	5.82	6.13	6.32	6.47	6.36	5.85	5
10	6.02	6.33	6.58	6.64	6.96	6.91	6.6	5.95
12	6.15	6.47	6.82	6.97	7.36	7.48	7.1	6.53
14	6.17	6.52	6.93	7.3	7.65	8.05	7.72	6.9
16	6.26	6.55	6.98	7.55	7.94	8.44	8.46	7.37
20	6.15	6.57	7.11	7.7	8.49	9.21	10.35	8.87

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	46.7°	2.86	144.3°	3.39
8	44.3°	3.52	146.8°	4.33
10	43.9°	3.91	148.2°	5.15
12	44.4°	4	150.5°	5.66
14	44.9°	3.99	174.9°	6.13
16	45°	4.06	177.6°	6.62
20	48°	3.87	141.2°	7.68

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