NO TE NOM: ORC Rating

GPH

663.6

OSN

642.1

LOA

10.3 m

Displacement

5685 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6005

Medium

0.8294

High

0.9734

Triple Offshore

Low

0.7768

Medium

1.0267

High

1.161

Boat Specifications

Dimensions

Length overall: 10.3 m
Beam: 3.48 m
Draft: 1.95 m
Displacement: 5685 kg
Crew weight: 560 kg
Wetted surface: 25.51 m²

Sails

Mainsail: 31.6 m²
Genoa: 31.83 m²
Spinnaker: 74.44 m²
Asymmetric spinnaker: 75.2 m²

Design

Type: DUFOUR 34
Builder: DUFOUR
Designer: FELCI
Year built: 2004
Stability index: 112

Performance data

Polar CSV

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

6,43.6,4.294561,52,4.8,60,5.1,75,5.33,90,5.27,110,5.31,120,5.14,135,4.64,145.1,4.169959,150,3.95
8,41.8,5.057172,52,5.71,60,6.02,75,6.27,90,6.34,110,6.44,120,6.26,135,5.73,147.5,5.134034,150,4.99
10,41.8,5.754712,52,6.41,60,6.66,75,6.85,90,7,110,7.08,120,6.99,135,6.63,150,5.88,152,5.776107
12,40.6,6.203316,52,6.82,60,7,75,7.15,90,7.33,110,7.44,120,7.38,135,7.14,150,6.66,156.5,6.368176
14,39.6,6.385354,52,7.02,60,7.2,75,7.37,90,7.5,110,7.78,120,7.73,135,7.48,150,7.12,167.6,6.604058
16,39,6.446665,52,7.1,60,7.29,75,7.54,90,7.64,110,8.12,120,8.11,135,7.83,150,7.44,177.2,6.958307
20,39,6.472401,52,7.15,60,7.36,75,7.73,90,8.06,110,8.54,120,8.87,135,8.62,150,8.13,179,7.591156

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.8	5.1	5.33	5.27	5.31	5.14	4.64	3.95
8	5.71	6.02	6.27	6.34	6.44	6.26	5.73	4.99
10	6.41	6.66	6.85	7	7.08	6.99	6.63	5.88
12	6.82	7	7.15	7.33	7.44	7.38	7.14	6.66
14	7.02	7.2	7.37	7.5	7.78	7.73	7.48	7.12
16	7.1	7.29	7.54	7.64	8.12	8.11	7.83	7.44
20	7.15	7.36	7.73	8.06	8.54	8.87	8.62	8.13

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	3.11	145.1°	3.42
8	41.8°	3.77	147.5°	4.33
10	41.8°	4.29	152°	5.1
12	40.6°	4.71	156.5°	5.84
14	39.6°	4.92	167.6°	6.45
16	39°	5.01	177.2°	6.95
20	39°	5.03	179°	7.59

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°	4.80	5.71	6.41	6.82	7.02	7.10	7.15
60°	5.10	6.02	6.66	7.00	7.20	7.29	7.36
75°	5.33	6.27	6.85	7.15	7.37	7.54	7.73
90°	5.27	6.34	7.00	7.33	7.50	7.64	8.06
110°	5.31	6.44	7.08	7.44	7.78	8.12	8.54
120°	5.14	6.26	6.99	7.38	7.73	8.11	8.87
135°	4.64	5.73	6.63	7.14	7.48	7.83	8.62
150°	3.95	4.99	5.88	6.66	7.12	7.44	8.13