BLUE: ORC Rating

GPH

603.9

OSN

588.1

LOA

12.06 m

Displacement

7092 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6789

Medium

0.9064

High

1.0243

Triple Offshore

Low

0.8764

Medium

1.1193

High

1.233

Boat Specifications

Dimensions

Length overall: 12.06 m
Beam: 3.89 m
Draft: 2.07 m
Displacement: 7092 kg
Crew weight: 600 kg
Wetted surface: 30.94 m²

Sails

Mainsail: 46.92 m²
Genoa: 43.68 m²
Spinnaker: 122.04 m²
Asymmetric spinnaker: 0 m²

Design

Type: DUFOUR 40 KB
Builder: DUFOUR
Designer: FELCI
Year built: 2002
Stability index: 111.9

Performance data

Polar CSV

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

6,43.6,5.026431,52,5.57,60,5.87,75,6.08,90,5.98,110,5.87,120,5.74,135,5.19,138.7,4.978276,150,4.32
8,41.8,5.888855,52,6.54,60,6.8,75,6.98,90,6.94,110,7.04,120,6.93,135,6.42,148.7,5.523964,150,5.45
10,40.6,6.361362,52,7.07,60,7.3,75,7.49,90,7.5,110,7.69,120,7.64,135,7.31,149.2,6.566081,150,6.51
12,40,6.540091,52,7.28,60,7.53,75,7.77,90,7.86,110,8.07,120,8.11,135,7.86,150,7.34,156.5,7.022441
14,40,6.644523,52,7.38,60,7.63,75,7.94,90,8.12,110,8.33,120,8.5,135,8.31,150,7.85,164.6,7.312554
16,40,6.696739,52,7.44,60,7.69,75,8.05,90,8.34,110,8.54,120,8.84,135,8.75,150,8.28,175.4,7.604495
20,40.6,6.716967,52,7.47,60,7.74,75,8.17,90,8.6,110,8.88,120,9.29,135,9.71,150,9.16,177.2,8.41004

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.57	5.87	6.08	5.98	5.87	5.74	5.19	4.32
8	6.54	6.8	6.98	6.94	7.04	6.93	6.42	5.45
10	7.07	7.3	7.49	7.5	7.69	7.64	7.31	6.51
12	7.28	7.53	7.77	7.86	8.07	8.11	7.86	7.34
14	7.38	7.63	7.94	8.12	8.33	8.5	8.31	7.85
16	7.44	7.69	8.05	8.34	8.54	8.84	8.75	8.28
20	7.47	7.74	8.17	8.6	8.88	9.29	9.71	9.16

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	3.64	138.7°	3.74
8	41.8°	4.39	148.7°	4.72
10	40.6°	4.83	149.2°	5.64
12	40°	5.01	156.5°	6.44
14	40°	5.09	164.6°	7.05
16	40°	5.13	175.4°	7.58
20	40.6°	5.1	177.2°	8.4

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°	5.57	6.54	7.07	7.28	7.38	7.44	7.47
60°	5.87	6.80	7.30	7.53	7.63	7.69	7.74
75°	6.08	6.98	7.49	7.77	7.94	8.05	8.17
90°	5.98	6.94	7.50	7.86	8.12	8.34	8.60
110°	5.87	7.04	7.69	8.07	8.33	8.54	8.88
120°	5.74	6.93	7.64	8.11	8.50	8.84	9.29
135°	5.19	6.42	7.31	7.86	8.31	8.75	9.71
150°	4.32	5.45	6.51	7.34	7.85	8.28	9.16