Mr B — ORC Rating | RegattaPages

GPH

691.8

OSN

665.2

LOA

10.53 m

Displacement

4255 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5556

Medium

0.8011

High

0.9573

Triple Offshore

Low

0.7241

Medium

0.9956

High

1.1456

Boat Specifications

Dimensions

Length overall: 10.53 m
Beam: 3.33 m
Draft: 1.93 m
Displacement: 4255 kg
Crew weight: 650 kg
Wetted surface: 24.12 m²

Sails

Mainsail: 30.29 m²
Genoa: 27.12 m²
Spinnaker: 64.18 m²
Asymmetric spinnaker: 0 m²

Design

Type: Lavranos 34
Builder: John Robertson Yac
Designer: Lavranos
Year built: 1986

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.

6,45.1,4.108396,52,4.51,60,4.79,75,4.97,90,4.95,110,4.97,120,4.77,135,4.15,146,3.666903,150,3.51
8,43.1,4.985193,52,5.52,60,5.8,75,5.99,90,6.08,110,6.12,120,5.92,135,5.32,149.4,4.612299,150,4.58
10,41.4,5.585839,52,6.22,60,6.46,75,6.64,90,6.8,110,6.86,120,6.73,135,6.28,150,5.56,150.9,5.516312
12,40,6.030982,52,6.67,60,6.86,75,7.01,90,7.19,110,7.31,120,7.21,135,6.89,150,6.37,156.8,6.070923
14,38.8,6.236062,52,6.92,60,7.1,75,7.28,90,7.43,110,7.68,120,7.6,135,7.31,150,6.92,168.7,6.34296
16,38.5,6.325004,52,7.02,60,7.23,75,7.49,90,7.56,110,8.02,120,7.98,135,7.7,150,7.31,176.3,6.77412
20,38.7,6.381094,52,7.08,60,7.31,75,7.7,90,8,110,8.5,120,8.75,135,8.5,150,8.02,178.6,7.492237
24,39.8,6.364838,52,7.06,60,7.33,75,7.79,90,8.23,110,8.83,120,9.5,135,9.65,150,8.85,178.6,8.17244

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.51	4.79	4.97	4.95	4.97	4.77	4.15	3.51
8	5.52	5.8	5.99	6.08	6.12	5.92	5.32	4.58
10	6.22	6.46	6.64	6.8	6.86	6.73	6.28	5.56
12	6.67	6.86	7.01	7.19	7.31	7.21	6.89	6.37
14	6.92	7.1	7.28	7.43	7.68	7.6	7.31	6.92
16	7.02	7.23	7.49	7.56	8.02	7.98	7.7	7.31
20	7.08	7.31	7.7	8	8.5	8.75	8.5	8.02
24	7.06	7.33	7.79	8.23	8.83	9.5	9.65	8.85

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.1°	2.9	146°	3.04
8	43.1°	3.64	149.4°	3.97
10	41.4°	4.19	150.9°	4.82
12	40°	4.62	156.8°	5.58
14	38.8°	4.86	168.7°	6.22
16	38.5°	4.95	176.3°	6.76
20	38.7°	4.98	178.6°	7.49
24	39.8°	4.89	178.6°	8.17

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