CHIMOULIS — ORC Rating

GPH

767.8

OSN

743

LOA

9.363 m

Displacement

4839 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.585

Medium

0.8016

High

0.9451

Triple Offshore

Low

0.7521

Medium

0.999

High

1.1341

Boat Specifications

Dimensions

Length overall: 9.363 m
Beam: 3.17 m
Draft: 1.8 m
Displacement: 4839 kg
Crew weight: 330 kg
Wetted surface: 21.11 m²

Sails

Mainsail: 16.29 m²
Genoa: 29.1 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 55.3 m²

Design

Type: DUFOUR 31
Builder: DUFOUR SA
Designer: M.DUFOUR
Year built: 1981

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.

6,43.5,3.653286,52,4.05,60,4.28,75,4.46,90,4.53,110,4.6,120,4.45,135,4.03,148.4,3.545737,150,3.49
8,41.8,4.292559,52,4.81,60,5.05,75,5.27,90,5.5,110,5.58,120,5.41,135,4.96,150,4.41,152.1,4.333728
10,41.8,4.829129,52,5.43,60,5.71,75,5.92,90,6.18,110,6.23,120,6.14,135,5.78,150,5.19,155,4.976234
12,42.2,5.278045,52,5.87,60,6.09,75,6.26,90,6.48,110,6.57,120,6.51,135,6.29,150,5.89,157.5,5.585144
14,42.2,5.588518,52,6.1,60,6.29,75,6.46,90,6.62,110,6.83,120,6.78,135,6.59,150,6.32,180,5.78
16,41.9,5.683104,52,6.22,60,6.41,75,6.6,90,6.69,110,7.09,120,7.06,135,6.87,150,6.59,180,6.23
20,42.3,5.705547,52,6.24,60,6.47,75,6.8,90,6.98,110,7.37,120,7.57,135,7.44,150,7.11,180,6.76

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.05	4.28	4.46	4.53	4.6	4.45	4.03	3.49
8	4.81	5.05	5.27	5.5	5.58	5.41	4.96	4.41
10	5.43	5.71	5.92	6.18	6.23	6.14	5.78	5.19
12	5.87	6.09	6.26	6.48	6.57	6.51	6.29	5.89
14	6.1	6.29	6.46	6.62	6.83	6.78	6.59	6.32
16	6.22	6.41	6.6	6.69	7.09	7.06	6.87	6.59
20	6.24	6.47	6.8	6.98	7.37	7.57	7.44	7.11

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	2.65	148.4°	3.02
8	41.8°	3.2	152.1°	3.83
10	41.8°	3.6	155°	4.51
12	42.2°	3.91	157.5°	5.16
14	42.2°	4.14	180°	5.78
16	41.9°	4.23	180°	6.23
20	42.3°	4.22	180°	6.76

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