BLUE ROCKET: ORC Rating

GPH

572.3

OSN

556.1

LOA

12.465 m

Displacement

6573 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7079

Medium

0.9601

High

1.1035

Triple Offshore

Low

0.9159

Medium

1.1837

High

1.3274

Boat Specifications

Dimensions

Length overall: 12.465 m
Beam: 3.71 m
Draft: 2.53 m
Displacement: 6573 kg
Crew weight: 670 kg
Wetted surface: 32.39 m²

Sails

Mainsail: 52.66 m²
Genoa: 40.97 m²
Spinnaker: 111.06 m²
Asymmetric spinnaker: 0 m²

Design

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

Performance data

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into Offwind or compatible navigation software.

6,42.8,5.165389,52,5.77,60,6.1,75,6.38,90,6.31,110,6.13,120,5.96,135,5.35,141.5,4.957781,150,4.48
8,41.2,6.140229,52,6.9,60,7.19,75,7.4,90,7.37,110,7.42,120,7.27,135,6.65,147,5.84258,150,5.66
10,39.8,6.781351,52,7.53,60,7.74,75,7.89,90,7.9,110,8.06,120,7.97,135,7.59,150,6.720357
12,38.4,6.96701,52,7.76,60,7.97,75,8.21,90,8.26,110,8.52,120,8.49,135,8.12,150,7.56,155,7.293328
14,38.4,7.107371,52,7.85,60,8.08,75,8.44,90,8.62,110,8.86,120,9.05,135,8.62,150,8.07,167,7.440705
16,38.1,7.154339,52,7.9,60,8.14,75,8.59,90,8.94,110,9.16,120,9.53,135,9.2,150,8.54,180,7.83
20,38.1,7.306829,52,8.04,60,8.29,75,8.72,90,9.36,110,9.64,120,10.19,135,10.6,150,9.63,180,8.73

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.77	6.1	6.38	6.31	6.13	5.96	5.35	4.48
8	6.9	7.19	7.4	7.37	7.42	7.27	6.65	5.66
10	7.53	7.74	7.89	7.9	8.06	7.97	7.59	6.72
12	7.76	7.97	8.21	8.26	8.52	8.49	8.12	7.56
14	7.85	8.08	8.44	8.62	8.86	9.05	8.62	8.07
16	7.9	8.14	8.59	8.94	9.16	9.53	9.2	8.54
20	8.04	8.29	8.72	9.36	9.64	10.19	10.6	9.63

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.79	141.5°	3.88
8	41.2°	4.62	147°	4.9
10	39.8°	5.21	150°	5.82
12	38.4°	5.46	155°	6.61
14	38.4°	5.57	167°	7.25
16	38.1°	5.63	180°	7.83
20	38.1°	5.75	180°	8.73

VPP POLAR · BOAT SPEED BY TWAKT

TRUE WIND ANGLE —

READ AT ANGLE

Hover or tap the chart, or use the slider, to read boat speeds.

True wind speed 6 kt8 kt10 kt12 kt14 kt16 kt20 kt

Data table

Boat speed by true wind angle and true wind speed
TWA	Boat speed in 6 kt (kt)	Boat speed in 8 kt (kt)	Boat speed in 10 kt (kt)	Boat speed in 12 kt (kt)	Boat speed in 14 kt (kt)	Boat speed in 16 kt (kt)	Boat speed in 20 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	5.77	6.90	7.53	7.76	7.85	7.90	8.04
60°	6.10	7.19	7.74	7.97	8.08	8.14	8.29
75°	6.38	7.40	7.89	8.21	8.44	8.59	8.72
90°	6.31	7.37	7.90	8.26	8.62	8.94	9.36
110°	6.13	7.42	8.06	8.52	8.86	9.16	9.64
120°	5.96	7.27	7.97	8.49	9.05	9.53	10.19
135°	5.35	6.65	7.59	8.12	8.62	9.20	10.60
150°	4.48	5.66	6.72	7.56	8.07	8.54	9.63