DUZY_PTAK — ORC Rating

GPH

625.4

OSN

610.6

LOA

9.45 m

Displacement

2466 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6618

Medium

0.8727

High

0.9833

Triple Offshore

Low

0.8544

Medium

1.0745

High

1.1963

Boat Specifications

Dimensions

Length overall: 9.45 m
Beam: 2.92 m
Draft: 2.29 m
Displacement: 2466 kg
Crew weight: 510 kg
Wetted surface: 18.43 m²

Sails

Mainsail: 30.63 m²
Genoa: 20.24 m²
Spinnaker: 57.56 m²
Asymmetric spinnaker: 0 m²

Design

Type: MANTRA 31
Builder: A.ARMINSKI
Designer: A.ARMINSKI
Year built: 2002

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.

6,41.8,4.829129,52,5.43,60,5.73,75,5.99,90,5.89,110,5.77,120,5.57,135,4.97,141,4.619467,150,4.15
8,40.5,5.681176,52,6.39,60,6.61,75,6.77,90,6.78,110,6.84,120,6.72,135,6.18,147.5,5.394885,150,5.25
10,39.4,6.095244,52,6.76,60,6.95,75,7.13,90,7.17,110,7.34,120,7.27,135,6.93,150,6.26,151,6.208413
12,39,6.202181,52,6.87,60,7.08,75,7.39,90,7.54,110,7.81,120,7.84,135,7.41,150,6.94,159,6.57683
14,39,6.227916,52,6.91,60,7.14,75,7.54,90,7.9,110,8.13,120,8.45,135,8.01,150,7.38,180,6.75
16,38.6,6.308216,52,6.97,60,7.17,75,7.63,90,8.17,110,8.46,120,8.88,135,8.72,150,7.92,180,7.21
20,39.6,6.359398,52,7.02,60,7.29,75,7.8,90,8.41,110,9.1,120,9.63,135,10.5,150,9.31,180,8.21

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.43	5.73	5.99	5.89	5.77	5.57	4.97	4.15
8	6.39	6.61	6.77	6.78	6.84	6.72	6.18	5.25
10	6.76	6.95	7.13	7.17	7.34	7.27	6.93	6.26
12	6.87	7.08	7.39	7.54	7.81	7.84	7.41	6.94
14	6.91	7.14	7.54	7.9	8.13	8.45	8.01	7.38
16	6.97	7.17	7.63	8.17	8.46	8.88	8.72	7.92
20	7.02	7.29	7.8	8.41	9.1	9.63	10.5	9.31

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.8°	3.6	141°	3.59
8	40.5°	4.32	147.5°	4.55
10	39.4°	4.71	151°	5.43
12	39°	4.82	159°	6.14
14	39°	4.84	180°	6.75
16	38.6°	4.93	180°	7.21
20	39.6°	4.9	180°	8.21

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