Beaufort 8.3 — ORC Rating

GPH

703.8

OSN

688.7

LOA

8.3 m

Displacement

1545 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5745

Medium

0.7569

High

0.8304

Triple Offshore

Low

0.7543

Medium

0.9606

High

1.0509

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.

6,46.9,4.171095,52,4.51,60,4.88,75,5.19,90,5.33,110,5.43,120,5.25,135,4.66,144,4.202631,150,3.93
8,44.6,4.929595,52,5.45,60,5.83,75,6.14,90,6.33,110,6.48,120,6.37,135,5.87,147,5.174857,150,5.01
10,44.2,5.42606,52,6,60,6.32,75,6.58,90,6.65,110,6.98,120,6.92,135,6.61,148.2,6.083121,150,5.97
12,44.6,5.561594,52,6.12,60,6.46,75,6.82,90,6.99,110,7.37,120,7.51,135,7.12,150,6.54,150.5,6.514578
14,45.4,5.611312,52,6.13,60,6.49,75,6.92,90,7.32,110,7.69,120,8.08,135,7.76,150,6.92,175,6.173492
16,45.8,5.751866,52,6.23,60,6.53,75,6.97,90,7.56,110,7.99,120,8.47,135,8.53,150,7.41,178,6.634041
20,48.8,5.753849,52,6.06,60,6.54,75,7.09,90,7.7,110,8.53,120,9.25,135,10.43,141.2,9.970001,150,8.97

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.51	4.88	5.19	5.33	5.43	5.25	4.66	3.93
8	5.45	5.83	6.14	6.33	6.48	6.37	5.87	5.01
10	6	6.32	6.58	6.65	6.98	6.92	6.61	5.97
12	6.12	6.46	6.82	6.99	7.37	7.51	7.12	6.54
14	6.13	6.49	6.92	7.32	7.69	8.08	7.76	6.92
16	6.23	6.53	6.97	7.56	7.99	8.47	8.53	7.41
20	6.06	6.54	7.09	7.7	8.53	9.25	10.43	8.97

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	46.9°	2.85	144°	3.4
8	44.6°	3.51	147°	4.34
10	44.2°	3.89	148.2°	5.17
12	44.6°	3.96	150.5°	5.67
14	45.4°	3.94	175°	6.15
16	45.8°	4.01	178°	6.63
20	48.8°	3.79	141.2°	7.77

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