Bellatrix: ORC Rating

GPH

573.5

OSN

556.4

LOA

12.24 m

Displacement

8195 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7135

Medium

0.9628

High

1.1083

Triple Offshore

Low

0.918

Medium

1.1791

High

1.3179

Boat Specifications

Dimensions

Length overall: 12.24 m
Beam: 3.9 m
Draft: 2.49 m
Displacement: 8195 kg
Crew weight: 802 kg
Wetted surface: 34.39 m²

Sails

Mainsail: 54.17 m²
Genoa: 40.64 m²
Spinnaker: 131.78 m²
Asymmetric spinnaker: 135.51 m²

Design

Type: First 40
Builder: Beneteau
Designer: Farr
Year built: 2008

Performance data

Polar CSV

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

6,42.5,5.126972,52,5.72,60,6.01,75,6.21,90,6.36,110,6.21,120,6.04,135,5.44,142.2,5.024331,150,4.59
8,40.4,6.027274,52,6.75,60,7,75,7.17,90,7.39,110,7.38,120,7.25,135,6.71,146.2,6.01696,150,5.77
10,38.8,6.633836,52,7.38,60,7.56,75,7.69,90,7.93,110,7.99,120,7.92,135,7.58,149.6,6.817283,150,6.78
12,37.6,6.929284,52,7.69,60,7.87,75,8.02,90,8.26,110,8.4,120,8.39,135,8.1,150,7.55,155.7,7.252552
14,36.9,7.05278,52,7.84,60,8.04,75,8.27,90,8.49,110,8.75,120,8.82,135,8.56,150,8.04,164.6,7.488885
16,36.5,7.128135,52,7.93,60,8.14,75,8.45,90,8.66,110,9.09,120,9.23,135,9.01,150,8.46,176.3,7.776209
20,36.7,7.271361,52,8.04,60,8.27,75,8.66,90,9.03,110,9.72,120,9.89,135,10.03,150,9.35,178.1,8.574714
24,37.4,7.338737,52,8.07,60,8.32,75,8.79,90,9.3,110,10.21,120,10.9,135,11.7,150,10.5,177.2,9.421248

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.72	6.01	6.21	6.36	6.21	6.04	5.44	4.59
8	6.75	7	7.17	7.39	7.38	7.25	6.71	5.77
10	7.38	7.56	7.69	7.93	7.99	7.92	7.58	6.78
12	7.69	7.87	8.02	8.26	8.4	8.39	8.1	7.55
14	7.84	8.04	8.27	8.49	8.75	8.82	8.56	8.04
16	7.93	8.14	8.45	8.66	9.09	9.23	9.01	8.46
20	8.04	8.27	8.66	9.03	9.72	9.89	10.03	9.35
24	8.07	8.32	8.79	9.3	10.21	10.9	11.7	10.5

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.5°	3.78	142.2°	3.97
8	40.4°	4.59	146.2°	5
10	38.8°	5.17	149.6°	5.88
12	37.6°	5.49	155.7°	6.61
14	36.9°	5.64	164.6°	7.22
16	36.5°	5.73	176.3°	7.76
20	36.7°	5.83	178.1°	8.57
24	37.4°	5.83	177.2°	9.41

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 kt24 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)	Boat speed in 24 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	5.72	6.75	7.38	7.69	7.84	7.93	8.04	8.07
60°	6.01	7.00	7.56	7.87	8.04	8.14	8.27	8.32
75°	6.21	7.17	7.69	8.02	8.27	8.45	8.66	8.79
90°	6.36	7.39	7.93	8.26	8.49	8.66	9.03	9.30
110°	6.21	7.38	7.99	8.40	8.75	9.09	9.72	10.21
120°	6.04	7.25	7.92	8.39	8.82	9.23	9.89	10.90
135°	5.44	6.71	7.58	8.10	8.56	9.01	10.03	11.70
150°	4.59	5.77	6.78	7.55	8.04	8.46	9.35	10.50