IRIDANOS — ORC Rating

GPH

711.9

OSN

689.5

LOA

10.75 m

Displacement

7054 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5627

Medium

0.7684

High

0.905

Triple Offshore

Low

0.7251

Medium

0.9553

High

1.0828

Boat Specifications

Dimensions

Length overall: 10.75 m
Beam: 3.46 m
Draft: 1.93 m
Displacement: 7054 kg
Crew weight: 400 kg
Wetted surface: 26.82 m²

Sails

Mainsail: 30.22 m²
Genoa: 26.51 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 71.47 m²

Design

Type: DUFOUR 35
Builder: MICHEL DUFOUR S.A.
Designer: MICHEL DUFOUR
Year built: 1972
Stability index: 122.3

Velocity Prediction

Polar CSV

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

6,43.6,3.93553,52,4.38,60,4.63,75,4.81,90,4.98,110,5.04,120,4.89,135,4.46,146,3.992581,150,3.82
8,41.7,4.607319,52,5.15,60,5.41,75,5.63,90,6,110,6.09,120,5.92,135,5.42,150,4.78,151.4,4.726743
10,41.2,5.143439,52,5.8,60,6.08,75,6.3,90,6.65,110,6.71,120,6.63,135,6.28,150,5.61,153.8,5.427645
12,42,5.692026,52,6.29,60,6.49,75,6.65,90,6.96,110,7.06,120,7,135,6.77,150,6.34,157.4,6.022464
14,41.4,5.98578,52,6.54,60,6.73,75,6.88,90,7.09,110,7.36,120,7.32,135,7.09,150,6.77,170,6.265182
16,41.1,6.09106,52,6.66,60,6.86,75,7.06,90,7.19,110,7.63,120,7.63,135,7.4,150,7.07,178.1,6.643653
20,41.2,6.073777,52,6.7,60,6.93,75,7.28,90,7.51,110,7.92,120,8.17,135,8.02,150,7.66,179,7.2211

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.38	4.63	4.81	4.98	5.04	4.89	4.46	3.82
8	5.15	5.41	5.63	6	6.09	5.92	5.42	4.78
10	5.8	6.08	6.3	6.65	6.71	6.63	6.28	5.61
12	6.29	6.49	6.65	6.96	7.06	7	6.77	6.34
14	6.54	6.73	6.88	7.09	7.36	7.32	7.09	6.77
16	6.66	6.86	7.06	7.19	7.63	7.63	7.4	7.07
20	6.7	6.93	7.28	7.51	7.92	8.17	8.02	7.66

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	2.85	146°	3.31
8	41.7°	3.44	151.4°	4.15
10	41.2°	3.87	153.8°	4.87
12	42°	4.23	157.4°	5.56
14	41.4°	4.49	170°	6.17
16	41.1°	4.59	178.1°	6.64
20	41.2°	4.57	179°	7.22

Loading polar chart…