DUZY PTAK — ORC Rating

GPH

633.1

OSN

619.1

LOA

9.46 m

Displacement

2465 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6624

Medium

0.8564

High

0.9525

Triple Offshore

Low

0.8534

Medium

1.0589

High

1.161

Boat Specifications

Dimensions

Length overall: 9.46 m
Beam: 2.92 m
Draft: 2.29 m
Displacement: 2465 kg
Crew weight: 425 kg
Wetted surface: 17.85 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
Stability index: 107.9

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.

6,41.8,4.936443,52,5.52,60,5.78,75,5.97,90,5.84,110,5.73,120,5.53,135,4.91,140.3,4.60099,150,4.09
8,39.9,5.644156,52,6.34,60,6.58,75,6.75,90,6.73,110,6.79,120,6.68,135,6.13,147.1,5.383389,150,5.22
10,39,5.880491,52,6.61,60,6.85,75,7.1,90,7.19,110,7.32,120,7.3,135,6.92,150,6.23,151.4,6.150461
12,39.4,6.017598,52,6.72,60,6.96,75,7.28,90,7.52,110,7.68,120,7.82,135,7.49,150,6.94,158.3,6.597552
14,39.6,6.060895,52,6.78,60,7.03,75,7.41,90,7.77,110,7.96,120,8.28,135,8.09,150,7.47,170.9,6.815785
16,40,6.096252,52,6.8,60,7.07,75,7.49,90,7.94,110,8.21,120,8.62,135,8.74,150,8.03,176.3,7.245102
20,41.1,6.09106,52,6.75,60,7.07,75,7.58,90,8.15,110,8.78,120,9.25,135,10.28,150,9.44,173,8.322031

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.52	5.78	5.97	5.84	5.73	5.53	4.91	4.09
8	6.34	6.58	6.75	6.73	6.79	6.68	6.13	5.22
10	6.61	6.85	7.1	7.19	7.32	7.3	6.92	6.23
12	6.72	6.96	7.28	7.52	7.68	7.82	7.49	6.94
14	6.78	7.03	7.41	7.77	7.96	8.28	8.09	7.47
16	6.8	7.07	7.49	7.94	8.21	8.62	8.74	8.03
20	6.75	7.07	7.58	8.15	8.78	9.25	10.28	9.44

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.8°	3.68	140.3°	3.54
8	39.9°	4.33	147.1°	4.52
10	39°	4.57	151.4°	5.4
12	39.4°	4.65	158.3°	6.13
14	39.6°	4.67	170.9°	6.73
16	40°	4.67	176.3°	7.23
20	41.1°	4.59	173°	8.26

Loading polar chart…