Buran — ORC Rating | RegattaPages

GPH

574.4

OSN

561.2

LOA

12.19 m

Displacement

6886 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7083

Medium

0.9475

High

1.0674

Triple Offshore

Low

0.9229

Medium

1.175

High

1.3031

Boat Specifications

Dimensions

Length overall: 12.19 m
Beam: 3.64 m
Draft: 2.21 m
Displacement: 6886 kg
Crew weight: 750 kg
Wetted surface: 32.15 m²

Sails

Mainsail: 49.82 m²
Genoa: 42.58 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 142.17 m²

Design

Type: J-122 E
Builder: J composite
Designer: Johnstone Rodney
Year built: 2006

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.

6,42.8,5.01547,52,5.65,60,5.99,75,6.43,90,6.71,110,6.51,120,6.18,135,5.51,144,4.981354,150,4.65
8,41.6,5.990922,52,6.74,60,7.05,75,7.44,90,7.65,110,7.56,120,7.36,135,6.81,146.5,6.043993,150,5.82
10,40.5,6.667491,52,7.39,60,7.59,75,7.8,90,8.08,110,8.06,120,7.97,135,7.65,149,6.941469,150,6.87
12,39.4,6.923473,52,7.64,60,7.84,75,8.05,90,8.36,110,8.52,120,8.47,135,8.14,150,7.58,150.8,7.526445
14,38.6,6.999177,52,7.74,60,7.96,75,8.28,90,8.58,110,9,120,9,135,8.65,150,7.95,152,7.837385
16,38.8,7.082935,52,7.79,60,8.02,75,8.42,90,8.76,110,9.44,120,9.41,135,9.23,150,8.31,176,7.458168
20,38.6,7.216702,52,7.9,60,8.12,75,8.56,90,9.17,110,10.05,120,10.51,135,10.68,150,9.24,177.5,8.237841

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.65	5.99	6.43	6.71	6.51	6.18	5.51	4.65
8	6.74	7.05	7.44	7.65	7.56	7.36	6.81	5.82
10	7.39	7.59	7.8	8.08	8.06	7.97	7.65	6.87
12	7.64	7.84	8.05	8.36	8.52	8.47	8.14	7.58
14	7.74	7.96	8.28	8.58	9	9	8.65	7.95
16	7.79	8.02	8.42	8.76	9.44	9.41	9.23	8.31
20	7.9	8.12	8.56	9.17	10.05	10.51	10.68	9.24

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.68	144°	4.03
8	41.6°	4.48	146.5°	5.04
10	40.5°	5.07	149°	5.95
12	39.4°	5.35	150.8°	6.57
14	38.6°	5.47	152°	6.92
16	38.8°	5.52	176°	7.44
20	38.6°	5.64	177.5°	8.23

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