Mr B — ORC Rating | RegattaPages

GPH

692.8

OSN

667.1

LOA

10.53 m

Displacement

4255 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5523

Medium

0.796

High

0.9562

Triple Offshore

Low

0.722

Medium

0.9936

High

1.1489

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: 24.01 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
Stability index: 117.2

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.

6,45.4,4.058944,52,4.45,60,4.75,75,4.98,90,4.98,110,5,120,4.81,135,4.22,146,3.727213,150,3.57
8,43.6,4.888342,52,5.43,60,5.76,75,6,90,6.12,110,6.17,120,5.96,135,5.35,150,4.62,150.2,4.621064
10,42.4,5.538588,52,6.18,60,6.47,75,6.68,90,6.85,110,6.91,120,6.79,135,6.34,150,5.59,151.4,5.512635
12,41.2,6.060486,52,6.67,60,6.87,75,7.03,90,7.23,110,7.32,120,7.23,135,6.94,150,6.43,155.6,6.171188
14,39.6,6.281527,52,6.92,60,7.1,75,7.28,90,7.46,110,7.73,120,7.63,135,7.33,150,6.96,166.4,6.450876
16,39,6.343725,52,7.02,60,7.23,75,7.5,90,7.61,110,8.14,120,8.08,135,7.73,150,7.32,177.2,6.808128
20,39.4,6.392889,52,7.06,60,7.3,75,7.75,90,8.12,110,8.67,120,9.01,135,8.66,150,8.11,178.4,7.512929

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.45	4.75	4.98	4.98	5	4.81	4.22	3.57
8	5.43	5.76	6	6.12	6.17	5.96	5.35	4.62
10	6.18	6.47	6.68	6.85	6.91	6.79	6.34	5.59
12	6.67	6.87	7.03	7.23	7.32	7.23	6.94	6.43
14	6.92	7.1	7.28	7.46	7.73	7.63	7.33	6.96
16	7.02	7.23	7.5	7.61	8.14	8.08	7.73	7.32
20	7.06	7.3	7.75	8.12	8.67	9.01	8.66	8.11

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.4°	2.85	146°	3.09
8	43.6°	3.54	150.2°	4.01
10	42.4°	4.09	151.4°	4.84
12	41.2°	4.56	155.6°	5.62
14	39.6°	4.84	166.4°	6.27
16	39°	4.93	177.2°	6.8
20	39.4°	4.94	178.4°	7.51

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