BLUE ROCKET — ORC Rating

GPH

575.1

OSN

557.7

LOA

12.465 m

Displacement

6682 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7892

Medium

1.0788

High

1.2479

Triple Offshore

Low

1.0183

Medium

1.3282

High

1.4977

Boat Specifications

Dimensions

Length overall: 12.465 m
Beam: 3.71 m
Draft: 2.54 m
Displacement: 6682 kg
Crew weight: 790 kg
Wetted surface: 32.57 m²

Sails

Mainsail: 48.68 m²
Genoa: 41.38 m²
Spinnaker: 110.84 m²
Asymmetric spinnaker: 0 m²

Design

Type: BASHFORD 41
Builder: BASHFORD
Designer: IAN MURRAY
Year built: 1994

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.

6,42.2,5.10256,52,5.73,60,6.04,75,6.27,90,6.17,110,5.99,120,5.81,135,5.23,142,4.834959,150,4.4
8,40.9,6.099066,52,6.88,60,7.16,75,7.35,90,7.29,110,7.31,120,7.14,135,6.51,147.4,5.745132,150,5.58
10,39.6,6.787683,52,7.53,60,7.72,75,7.87,90,7.87,110,8,120,7.9,135,7.51,150,6.639528
12,38.1,7.001849,52,7.79,60,7.99,75,8.19,90,8.22,110,8.46,120,8.4,135,8.05,150,7.48,154.6,7.239837
14,37.9,7.147527,52,7.89,60,8.11,75,8.45,90,8.58,110,8.87,120,8.94,135,8.53,150,8.01,164.9,7.436772
16,37.6,7.194339,52,7.95,60,8.19,75,8.62,90,8.92,110,9.14,120,9.49,135,9.08,150,8.45,180,7.77
20,37.1,7.359727,52,8.11,60,8.33,75,8.78,90,9.42,110,9.7,120,10.22,135,10.41,150,9.5,180,8.64

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.73	6.04	6.27	6.17	5.99	5.81	5.23	4.4
8	6.88	7.16	7.35	7.29	7.31	7.14	6.51	5.58
10	7.53	7.72	7.87	7.87	8	7.9	7.51	6.64
12	7.79	7.99	8.19	8.22	8.46	8.4	8.05	7.48
14	7.89	8.11	8.45	8.58	8.87	8.94	8.53	8.01
16	7.95	8.19	8.62	8.92	9.14	9.49	9.08	8.45
20	8.11	8.33	8.78	9.42	9.7	10.22	10.41	9.5

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.2°	3.78	142°	3.81
8	40.9°	4.61	147.4°	4.84
10	39.6°	5.23	150°	5.75
12	38.1°	5.51	154.6°	6.54
14	37.9°	5.64	164.9°	7.18
16	37.6°	5.7	180°	7.77
20	37.1°	5.87	180°	8.64

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