Mr B — ORC Rating | RegattaPages

GPH

687.1

OSN

662.9

LOA

10.53 m

Displacement

4255 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6302

Medium

0.9016

High

1.0771

Triple Offshore

Low

0.8235

Medium

1.1244

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.

6,44.9,4.108198,52,4.53,60,4.84,75,5.07,90,5.03,110,5.06,120,4.87,135,4.29,146.8,3.740599,150,3.61
8,43.4,4.940993,52,5.5,60,5.83,75,6.09,90,6.16,110,6.22,120,6.01,135,5.4,150,4.66,150.3,4.639482
10,42.1,5.566219,52,6.23,60,6.52,75,6.72,90,6.88,110,6.94,120,6.82,135,6.38,150,5.61,150.7,5.572952
12,40.9,6.085836,52,6.71,60,6.9,75,7.06,90,7.25,110,7.35,120,7.25,135,6.97,150,6.45,155.8,6.172433
14,39.4,6.28936,52,6.94,60,7.12,75,7.31,90,7.47,110,7.76,120,7.66,135,7.35,150,6.97,172.2,6.34874
16,39,6.343725,52,7.02,60,7.24,75,7.52,90,7.63,110,8.17,120,8.11,135,7.75,150,7.33,180,6.84
20,39.5,6.363198,52,7.05,60,7.29,75,7.75,90,8.14,110,8.7,120,9.05,135,8.68,150,8.11,180,7.54

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.53	4.84	5.07	5.03	5.06	4.87	4.29	3.61
8	5.5	5.83	6.09	6.16	6.22	6.01	5.4	4.66
10	6.23	6.52	6.72	6.88	6.94	6.82	6.38	5.61
12	6.71	6.9	7.06	7.25	7.35	7.25	6.97	6.45
14	6.94	7.12	7.31	7.47	7.76	7.66	7.35	6.97
16	7.02	7.24	7.52	7.63	8.17	8.11	7.75	7.33
20	7.05	7.29	7.75	8.14	8.7	9.05	8.68	8.11

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.9°	2.91	146.8°	3.13
8	43.4°	3.59	150.3°	4.03
10	42.1°	4.13	150.7°	4.86
12	40.9°	4.6	155.8°	5.63
14	39.4°	4.86	172.2°	6.29
16	39°	4.93	180°	6.84
20	39.5°	4.91	180°	7.54

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