PIROPO DOS — ORC Rating

GPH

716.2

OSN

694.3

LOA

9.49 m

Displacement

4306 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5715

Medium

0.773

High

0.8826

Triple Offshore

Low

0.7326

Medium

0.9463

High

1.0492

Boat Specifications

Dimensions

Length overall: 9.49 m
Beam: 3.16 m
Draft: 1.74 m
Displacement: 4306 kg
Crew weight: 240 kg
Wetted surface: 20.13 m²

Sails

Mainsail: 22.6 m²
Genoa: 30.67 m²
Spinnaker: 63.95 m²
Asymmetric spinnaker: 0 m²

Design

Type: DUFOUR 3800
Builder: DUFOUR
Designer: M.DUFOUR
Year built: 1978
Stability index: 129.1

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.

6,43,4.074636,52,4.54,60,4.78,75,4.96,90,4.89,110,4.96,120,4.81,135,4.37,147.8,3.840731,150,3.76
8,41.4,4.759295,52,5.35,60,5.62,75,5.82,90,5.86,110,5.98,120,5.85,135,5.35,150,4.73,152,4.643537
10,41.8,5.379113,52,5.94,60,6.12,75,6.26,90,6.38,110,6.47,120,6.41,135,6.13,150,5.58,152.9,5.448136
12,40.8,5.680354,52,6.2,60,6.36,75,6.5,90,6.6,110,6.8,120,6.75,135,6.53,150,6.21,160.4,5.859515
14,40,5.7699,52,6.32,60,6.5,75,6.68,90,6.75,110,7.1,120,7.07,135,6.86,150,6.57,175.4,6.099648
16,40,5.822117,52,6.38,60,6.57,75,6.83,90,6.95,110,7.31,120,7.39,135,7.2,150,6.87,179,6.460984
20,40.8,5.852086,52,6.4,60,6.61,75,6.99,90,7.29,110,7.56,120,7.83,135,7.85,150,7.51,179,7.051074

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.54	4.78	4.96	4.89	4.96	4.81	4.37	3.76
8	5.35	5.62	5.82	5.86	5.98	5.85	5.35	4.73
10	5.94	6.12	6.26	6.38	6.47	6.41	6.13	5.58
12	6.2	6.36	6.5	6.6	6.8	6.75	6.53	6.21
14	6.32	6.5	6.68	6.75	7.1	7.07	6.86	6.57
16	6.38	6.57	6.83	6.95	7.31	7.39	7.2	6.87
20	6.4	6.61	6.99	7.29	7.56	7.83	7.85	7.51

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	2.98	147.8°	3.25
8	41.4°	3.57	152°	4.1
10	41.8°	4.01	152.9°	4.85
12	40.8°	4.3	160.4°	5.52
14	40°	4.42	175.4°	6.08
16	40°	4.46	179°	6.46
20	40.8°	4.43	179°	7.05

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