BLUE FLAG — ORC Rating

GPH

636

OSN

617.7

LOA

10.73 m

Displacement

5318 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6506

Medium

0.8684

High

0.9846

Triple Offshore

Low

0.8335

Medium

1.0621

High

1.1718

Boat Specifications

Dimensions

Length overall: 10.73 m
Beam: 3.38 m
Draft: 1.99 m
Displacement: 5318 kg
Crew weight: 330 kg
Wetted surface: 25.5 m²

Sails

Mainsail: 36.13 m²
Genoa: 31.72 m²
Spinnaker: 87.36 m²
Asymmetric spinnaker: 83.22 m²

Design

Type: J-35
Builder: BASHFORD
Designer: JOHNSTONE
Year built: 1983
Stability index: 117.8

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.

6,42.6,4.727637,52,5.27,60,5.52,75,5.7,90,5.59,110,5.58,120,5.42,135,4.88,144.2,4.413956,150,4.13
8,40.6,5.53162,52,6.19,60,6.41,75,6.56,90,6.54,110,6.66,120,6.54,135,6.05,147.8,5.377023,150,5.25
10,39.4,6.004657,52,6.69,60,6.87,75,7.02,90,7.06,110,7.23,120,7.17,135,6.86,150,6.19,151.8,6.093247
12,38.8,6.210399,52,6.9,60,7.09,75,7.27,90,7.33,110,7.59,120,7.58,135,7.35,150,6.9,158.3,6.543738
14,38.4,6.290725,52,6.99,60,7.19,75,7.44,90,7.57,110,7.88,120,7.95,135,7.76,150,7.34,170,6.772896
16,38.2,6.337032,52,7.05,60,7.25,75,7.55,90,7.76,110,8.09,120,8.29,135,8.16,150,7.73,177.2,7.158546
20,38.8,6.40287,52,7.1,60,7.31,75,7.67,90,8.04,110,8.43,120,8.86,135,9.03,150,8.52,179,7.8812

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.27	5.52	5.7	5.59	5.58	5.42	4.88	4.13
8	6.19	6.41	6.56	6.54	6.66	6.54	6.05	5.25
10	6.69	6.87	7.02	7.06	7.23	7.17	6.86	6.19
12	6.9	7.09	7.27	7.33	7.59	7.58	7.35	6.9
14	6.99	7.19	7.44	7.57	7.88	7.95	7.76	7.34
16	7.05	7.25	7.55	7.76	8.09	8.29	8.16	7.73
20	7.1	7.31	7.67	8.04	8.43	8.86	9.03	8.52

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.48	144.2°	3.58
8	40.6°	4.2	147.8°	4.55
10	39.4°	4.64	151.8°	5.37
12	38.8°	4.84	158.3°	6.08
14	38.4°	4.93	170°	6.67
16	38.2°	4.98	177.2°	7.15
20	38.8°	4.99	179°	7.88

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