Dina: ORC Rating

GPH

640.5

OSN

623.7

LOA

10.34 m

Displacement

5097 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7144

Medium

0.9666

High

1.1038

Triple Offshore

Low

0.9235

Medium

1.189

High

1.3202

Boat Specifications

Dimensions

Length overall: 10.34 m
Beam: 3.48 m
Draft: 1.94 m
Displacement: 5097 kg
Crew weight: 612 kg
Wetted surface: 24.98 m²

Sails

Mainsail: 35.71 m²
Genoa: 36.57 m²
Spinnaker: 73.26 m²
Asymmetric spinnaker: 0 m²

Design

Type: Dufour 34 Performa
Builder: Dufour Yachts
Designer: Umberto Felici
Year built: 2003

Performance data

Polar CSV

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

6,42.8,4.647487,52,5.22,60,5.52,75,5.79,90,5.72,110,5.45,120,5.28,135,4.78,145.6,4.241841,150,4.04
8,41.6,5.482763,52,6.16,60,6.44,75,6.65,90,6.65,110,6.58,120,6.42,135,5.87,150,5.1,150.2,5.082018
10,40.9,6.112296,52,6.75,60,6.94,75,7.08,90,7.1,110,7.16,120,7.08,135,6.73,150,6.02,151.9,5.917516
12,39.8,6.338806,52,6.99,60,7.16,75,7.33,90,7.38,110,7.53,120,7.46,135,7.21,150,6.77,157.6,6.435591
14,39.1,6.404256,52,7.07,60,7.26,75,7.52,90,7.63,110,7.89,120,7.84,135,7.56,150,7.2,180,6.58
16,38.9,6.437577,52,7.11,60,7.31,75,7.62,90,7.87,110,8.19,120,8.25,135,7.95,150,7.53,180,7.07
20,39.4,6.470535,52,7.12,60,7.33,75,7.71,90,8.19,110,8.55,120,8.93,135,8.8,150,8.28,180,7.74

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.22	5.52	5.79	5.72	5.45	5.28	4.78	4.04
8	6.16	6.44	6.65	6.65	6.58	6.42	5.87	5.1
10	6.75	6.94	7.08	7.1	7.16	7.08	6.73	6.02
12	6.99	7.16	7.33	7.38	7.53	7.46	7.21	6.77
14	7.07	7.26	7.52	7.63	7.89	7.84	7.56	7.2
16	7.11	7.31	7.62	7.87	8.19	8.25	7.95	7.53
20	7.12	7.33	7.71	8.19	8.55	8.93	8.8	8.28

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.41	145.6°	3.5
8	41.6°	4.1	150.2°	4.41
10	40.9°	4.62	151.9°	5.22
12	39.8°	4.87	157.6°	5.95
14	39.1°	4.97	180°	6.58
16	38.9°	5.01	180°	7.07
20	39.4°	5	180°	7.74

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°	5.22	6.16	6.75	6.99	7.07	7.11	7.12
60°	5.52	6.44	6.94	7.16	7.26	7.31	7.33
75°	5.79	6.65	7.08	7.33	7.52	7.62	7.71
90°	5.72	6.65	7.10	7.38	7.63	7.87	8.19
110°	5.45	6.58	7.16	7.53	7.89	8.19	8.55
120°	5.28	6.42	7.08	7.46	7.84	8.25	8.93
135°	4.78	5.87	6.73	7.21	7.56	7.95	8.80
150°	4.04	5.10	6.02	6.77	7.20	7.53	8.28