LADY: ORC Rating

GPH

606.8

OSN

589

LOA

12.06 m

Displacement

7362 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6593

Medium

0.9039

High

1.0485

Triple Offshore

Low

0.8549

Medium

1.1208

High

1.2603

Boat Specifications

Dimensions

Length overall: 12.06 m
Beam: 3.89 m
Draft: 2.14 m
Displacement: 7362 kg
Crew weight: 724 kg
Wetted surface: 31.81 m²

Sails

Mainsail: 50.17 m²
Genoa: 36.51 m²
Spinnaker: 102.02 m²
Asymmetric spinnaker: 101.54 m²

Design

Type: DUFOUR 40
Builder: DUFOUR
Designer: FELCI
Year built: 2002
Stability index: 123.4

Performance data

Polar CSV

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

6,43.8,4.738416,52,5.27,60,5.61,75,5.89,90,5.83,110,5.86,120,5.68,135,5.12,144.2,4.635887,150,4.34
8,42,5.584376,52,6.29,60,6.64,75,6.92,90,7.01,110,7.1,120,6.93,135,6.33,147.5,5.596452,150,5.46
10,41.8,6.358354,52,7.06,60,7.31,75,7.49,90,7.64,110,7.74,120,7.65,135,7.28,149.3,6.489487,150,6.45
12,40.6,6.716967,52,7.42,60,7.63,75,7.81,90,7.93,110,8.16,120,8.09,135,7.8,150,7.27,155.9,6.967311
14,40,6.853388,52,7.56,60,7.79,75,8.04,90,8.14,110,8.56,120,8.55,135,8.22,150,7.76,165.8,7.220624
16,40.2,6.952118,52,7.63,60,7.86,75,8.22,90,8.42,110,8.87,120,9.01,135,8.68,150,8.15,177.2,7.549012
20,39.9,7.064972,52,7.71,60,7.92,75,8.39,90,8.88,110,9.3,120,9.76,135,9.66,150,9.01,179,8.311266

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.27	5.61	5.89	5.83	5.86	5.68	5.12	4.34
8	6.29	6.64	6.92	7.01	7.1	6.93	6.33	5.46
10	7.06	7.31	7.49	7.64	7.74	7.65	7.28	6.45
12	7.42	7.63	7.81	7.93	8.16	8.09	7.8	7.27
14	7.56	7.79	8.04	8.14	8.56	8.55	8.22	7.76
16	7.63	7.86	8.22	8.42	8.87	9.01	8.68	8.15
20	7.71	7.92	8.39	8.88	9.3	9.76	9.66	9.01

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	3.42	144.2°	3.76
8	42°	4.15	147.5°	4.72
10	41.8°	4.74	149.3°	5.58
12	40.6°	5.1	155.9°	6.36
14	40°	5.25	165.8°	7
16	40.2°	5.31	177.2°	7.54
20	39.9°	5.42	179°	8.31

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°	5.27	6.29	7.06	7.42	7.56	7.63	7.71
60°	5.61	6.64	7.31	7.63	7.79	7.86	7.92
75°	5.89	6.92	7.49	7.81	8.04	8.22	8.39
90°	5.83	7.01	7.64	7.93	8.14	8.42	8.88
110°	5.86	7.10	7.74	8.16	8.56	8.87	9.30
120°	5.68	6.93	7.65	8.09	8.55	9.01	9.76
135°	5.12	6.33	7.28	7.80	8.22	8.68	9.66
150°	4.34	5.46	6.45	7.27	7.76	8.15	9.01