The three Cs — ORC Rating

GPH

779.6

OSN

756.7

LOA

7.35 m

Displacement

2132 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5867

Medium

0.7974

High

0.9194

Triple Offshore

Low

0.7551

Medium

0.9777

High

1.095

Boat Specifications

Dimensions

Length overall: 7.35 m
Beam: 2.63 m
Draft: 1.31 m
Displacement: 2132 kg
Crew weight: 383 kg
Wetted surface: 13.74 m²

Sails

Mainsail: 15.27 m²
Genoa: 15.85 m²
Spinnaker: 31.78 m²
Asymmetric spinnaker: 0 m²

Design

Type: DUFOUR 1800
Builder: Dufour Yachts
Designer: CORDELLE LAURENT
Year built: 1979

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.

6,43.6,3.714588,52,4.14,60,4.38,75,4.55,90,4.54,110,4.6,120,4.46,135,4.04,148.9,3.526937,150,3.49
8,42,4.306025,52,4.88,60,5.17,75,5.34,90,5.46,110,5.51,120,5.39,135,4.91,150,4.36,154,4.216761
10,42.8,4.906438,52,5.42,60,5.61,75,5.75,90,5.91,110,5.95,120,5.88,135,5.61,150,5.13,156,4.893024
12,41,5.207301,52,5.69,60,5.83,75,5.97,90,6.17,110,6.25,120,6.16,135,5.97,150,5.69,172.1,5.169057
14,39.9,5.344351,52,5.84,60,5.98,75,6.14,90,6.38,110,6.56,120,6.46,135,6.25,150,6,180,5.64
16,39.6,5.38602,52,5.91,60,6.08,75,6.3,90,6.49,110,6.86,120,6.79,135,6.55,150,6.26,180,5.96
20,40.5,5.391857,52,5.91,60,6.12,75,6.49,90,6.77,110,7.23,120,7.36,135,7.19,150,6.85,180,6.48

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.14	4.38	4.55	4.54	4.6	4.46	4.04	3.49
8	4.88	5.17	5.34	5.46	5.51	5.39	4.91	4.36
10	5.42	5.61	5.75	5.91	5.95	5.88	5.61	5.13
12	5.69	5.83	5.97	6.17	6.25	6.16	5.97	5.69
14	5.84	5.98	6.14	6.38	6.56	6.46	6.25	6
16	5.91	6.08	6.3	6.49	6.86	6.79	6.55	6.26
20	5.91	6.12	6.49	6.77	7.23	7.36	7.19	6.85

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	2.69	148.9°	3.02
8	42°	3.2	154°	3.79
10	42.8°	3.6	156°	4.47
12	41°	3.93	172.1°	5.12
14	39.9°	4.1	180°	5.64
16	39.6°	4.15	180°	5.96
20	40.5°	4.1	180°	6.48

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