RAYGRASS III — ORC Rating

GPH

671.6

OSN

649.5

LOA

10.3 m

Displacement

5683 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5909

Medium

0.8198

High

0.9616

Triple Offshore

Low

0.7647

Medium

1.0158

High

1.149

Boat Specifications

Dimensions

Length overall: 10.3 m
Beam: 3.48 m
Draft: 1.95 m
Displacement: 5683 kg
Crew weight: 470 kg
Wetted surface: 25.31 m²

Sails

Mainsail: 31.78 m²
Genoa: 28.59 m²
Spinnaker: 64.36 m²
Asymmetric spinnaker: 0 m²

Design

Type: DUFOUR 34
Builder: DUFOUR
Designer: Felci Yachts
Year built: 2003
Stability index: 113.2

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.

6,43.8,4.267345,52,4.77,60,5.06,75,5.28,90,5.21,110,5.2,120,5.03,135,4.53,146,4.004644,150,3.84
8,42.4,5.064626,52,5.66,60,5.96,75,6.22,90,6.22,110,6.32,120,6.15,135,5.58,150,4.9,150.5,4.871571
10,41.8,5.701055,52,6.36,60,6.62,75,6.81,90,6.93,110,7.01,120,6.91,135,6.49,150,5.79,153.3,5.630357
12,40.8,6.155919,52,6.78,60,6.97,75,7.13,90,7.27,110,7.38,120,7.31,135,7.05,150,6.57,156.5,6.280941
14,40,6.344279,52,6.98,60,7.17,75,7.35,90,7.44,110,7.71,120,7.64,135,7.39,150,7.07,167.6,6.542625
16,39.5,6.389117,52,7.06,60,7.26,75,7.52,90,7.62,110,8.03,120,7.99,135,7.73,150,7.39,177.2,6.918259
20,40,6.435658,52,7.1,60,7.32,75,7.7,90,8.04,110,8.42,120,8.71,135,8.49,150,8.05,179,7.55115

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.77	5.06	5.28	5.21	5.2	5.03	4.53	3.84
8	5.66	5.96	6.22	6.22	6.32	6.15	5.58	4.9
10	6.36	6.62	6.81	6.93	7.01	6.91	6.49	5.79
12	6.78	6.97	7.13	7.27	7.38	7.31	7.05	6.57
14	6.98	7.17	7.35	7.44	7.71	7.64	7.39	7.07
16	7.06	7.26	7.52	7.62	8.03	7.99	7.73	7.39
20	7.1	7.32	7.7	8.04	8.42	8.71	8.49	8.05

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	3.08	146°	3.32
8	42.4°	3.74	150.5°	4.24
10	41.8°	4.25	153.3°	5.03
12	40.8°	4.66	156.5°	5.76
14	40°	4.86	167.6°	6.39
16	39.5°	4.93	177.2°	6.91
20	40°	4.93	179°	7.55

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