BLUE: ORC Rating

GPH

603.8

OSN

587.9

LOA

12.06 m

Displacement

7092 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6782

Medium

0.9071

High

1.0268

Triple Offshore

Low

0.8756

Medium

1.1199

High

1.2348

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: 31.08 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

Performance data

Polar CSV

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

6,43.5,5.004312,52,5.56,60,5.86,75,6.07,90,5.98,110,5.87,120,5.74,135,5.18,138.7,4.978276,150,4.32
8,41.7,5.879689,52,6.53,60,6.8,75,6.98,90,6.94,110,7.04,120,6.93,135,6.41,148.2,5.541876,150,5.44
10,40.4,6.355557,52,7.08,60,7.31,75,7.49,90,7.5,110,7.69,120,7.64,135,7.3,148.8,6.581991,150,6.5
12,40,6.553145,52,7.29,60,7.54,75,7.77,90,7.86,110,8.07,120,8.1,135,7.85,150,7.33,156.3,7.022237
14,39.9,6.647851,52,7.39,60,7.63,75,7.94,90,8.13,110,8.32,120,8.5,135,8.3,150,7.84,164.2,7.316429
16,39.9,6.699992,52,7.45,60,7.7,75,8.04,90,8.34,110,8.53,120,8.83,135,8.74,150,8.27,175.8,7.590384
20,40.3,6.739496,52,7.49,60,7.77,75,8.19,90,8.61,110,8.87,120,9.27,135,9.68,150,9.13,177.7,8.386756
24,41.9,6.704182,52,7.44,60,7.73,75,8.25,90,8.78,110,9.16,120,9.66,135,10.81,150,10.24,176.6,9.206205

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.56	5.86	6.07	5.98	5.87	5.74	5.18	4.32
8	6.53	6.8	6.98	6.94	7.04	6.93	6.41	5.44
10	7.08	7.31	7.49	7.5	7.69	7.64	7.3	6.5
12	7.29	7.54	7.77	7.86	8.07	8.1	7.85	7.33
14	7.39	7.63	7.94	8.13	8.32	8.5	8.3	7.84
16	7.45	7.7	8.04	8.34	8.53	8.83	8.74	8.27
20	7.49	7.77	8.19	8.61	8.87	9.27	9.68	9.13
24	7.44	7.73	8.25	8.78	9.16	9.66	10.81	10.24

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.63	138.7°	3.74
8	41.7°	4.39	148.2°	4.71
10	40.4°	4.84	148.8°	5.63
12	40°	5.02	156.3°	6.43
14	39.9°	5.1	164.2°	7.04
16	39.9°	5.14	175.8°	7.57
20	40.3°	5.14	177.7°	8.38
24	41.9°	4.99	176.6°	9.19

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°	5.56	6.53	7.08	7.29	7.39	7.45	7.49	7.44
60°	5.86	6.80	7.31	7.54	7.63	7.70	7.77	7.73
75°	6.07	6.98	7.49	7.77	7.94	8.04	8.19	8.25
90°	5.98	6.94	7.50	7.86	8.13	8.34	8.61	8.78
110°	5.87	7.04	7.69	8.07	8.32	8.53	8.87	9.16
120°	5.74	6.93	7.64	8.10	8.50	8.83	9.27	9.66
135°	5.18	6.41	7.30	7.85	8.30	8.74	9.68	10.81
150°	4.32	5.44	6.50	7.33	7.84	8.27	9.13	10.24