AMETHYST — ORC Rating

GPH

629.5

OSN

615.1

LOA

8.186 m

Displacement

1397 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6717

Medium

0.8525

High

0.9593

Triple Offshore

Low

0.8582

Medium

1.0609

High

1.1868

Boat Specifications

Dimensions

Length overall: 8.186 m
Beam: 2.48 m
Draft: 1.73 m
Displacement: 1397 kg
Crew weight: 356 kg
Wetted surface: 14.2 m²

Sails

Mainsail: 26.37 m²
Genoa: 14.06 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 61.24 m²

Design

Type: Saphire 27
Builder: Delphia
Designer: Fontana Maletto
Year built: 2012
Stability index: 116.2

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.

6,42.4,4.807332,52,5.37,60,5.65,75,5.85,90,5.78,110,5.9,120,5.76,135,5.16,143.4,4.708418,150,4.36
8,40.2,5.538128,52,6.19,60,6.39,75,6.53,90,6.55,110,6.79,120,6.72,135,6.31,147.8,5.625193,150,5.5
10,39,5.803286,52,6.49,60,6.72,75,6.99,90,7.03,110,7.43,120,7.46,135,7.06,150,6.37,150.1,6.356005
12,38.8,5.902446,52,6.61,60,6.87,75,7.3,90,7.56,110,7.84,120,8.17,135,7.82,149.4,7.052055,150,7.01
14,39,5.944829,52,6.67,60,6.96,75,7.48,90,7.96,110,8.23,120,8.71,135,8.74,146.8,7.899476,150,7.63
16,39.4,5.965834,52,6.69,60,7.01,75,7.59,90,8.2,110,8.59,120,9.2,135,9.82,144.8,8.970257,150,8.46
20,42.4,6.053176,52,6.65,60,7.01,75,7.71,90,8.49,110,9.56,120,10.16,135,11.75,143.3,11.94848,150,11.06

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.37	5.65	5.85	5.78	5.9	5.76	5.16	4.36
8	6.19	6.39	6.53	6.55	6.79	6.72	6.31	5.5
10	6.49	6.72	6.99	7.03	7.43	7.46	7.06	6.37
12	6.61	6.87	7.3	7.56	7.84	8.17	7.82	7.01
14	6.67	6.96	7.48	7.96	8.23	8.71	8.74	7.63
16	6.69	7.01	7.59	8.2	8.59	9.2	9.82	8.46
20	6.65	7.01	7.71	8.49	9.56	10.16	11.75	11.06

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.55	143.4°	3.78
8	40.2°	4.23	147.8°	4.76
10	39°	4.51	150.1°	5.51
12	38.8°	4.6	149.4°	6.07
14	39°	4.62	146.8°	6.61
16	39.4°	4.61	144.8°	7.33
20	42.4°	4.47	143.3°	9.58

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