Mr B — ORC Rating | RegattaPages

GPH

693.5

OSN

669.5

LOA

10.53 m

Displacement

4255 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6209

Medium

0.8892

High

1.0733

Triple Offshore

Low

0.8125

Medium

1.1145

High

1.2962

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 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.

6,44.8,4.016513,52,4.44,60,4.77,75,5.06,90,5.02,110,4.98,120,4.79,135,4.21,147.4,3.667863,150,3.57
8,43.2,4.842458,52,5.42,60,5.77,75,6.08,90,6.1,110,6.14,120,5.93,135,5.33,150,4.62,150.7,4.586792
10,42.6,5.501992,52,6.19,60,6.51,75,6.75,90,6.87,110,6.89,120,6.76,135,6.32,150,5.56,151.7,5.474303
12,42.3,6.084114,52,6.69,60,6.92,75,7.1,90,7.27,110,7.3,120,7.2,135,6.92,150,6.4,156,6.119017
14,40.5,6.312418,52,6.95,60,7.16,75,7.37,90,7.5,110,7.72,120,7.59,135,7.3,150,6.93,172.2,6.318459
16,39.8,6.39087,52,7.05,60,7.29,75,7.63,90,7.7,110,8.18,120,8.04,135,7.68,150,7.29,180,6.81
20,39.7,6.420591,52,7.11,60,7.37,75,7.9,90,8.27,110,8.7,120,9.05,135,8.59,150,8.05,180,7.5

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.44	4.77	5.06	5.02	4.98	4.79	4.21	3.57
8	5.42	5.77	6.08	6.1	6.14	5.93	5.33	4.62
10	6.19	6.51	6.75	6.87	6.89	6.76	6.32	5.56
12	6.69	6.92	7.1	7.27	7.3	7.2	6.92	6.4
14	6.95	7.16	7.37	7.5	7.72	7.59	7.3	6.93
16	7.05	7.29	7.63	7.7	8.18	8.04	7.68	7.29
20	7.11	7.37	7.9	8.27	8.7	9.05	8.59	8.05

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.8°	2.85	147.4°	3.09
8	43.2°	3.53	150.7°	4
10	42.6°	4.05	151.7°	4.82
12	42.3°	4.5	156°	5.59
14	40.5°	4.8	172.2°	6.26
16	39.8°	4.91	180°	6.81
20	39.7°	4.94	180°	7.5

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