Patriot IV — ORC Rating

GPH

631.7

OSN

612.3

LOA

7.509 m

Displacement

821 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6443

Medium

0.854

High

1.0059

Triple Offshore

Low

0.8271

Medium

1.0665

High

1.2501

Boat Specifications

Dimensions

Length overall: 7.509 m
Beam: 2.49 m
Draft: 1.52 m
Displacement: 821 kg
Crew weight: 388 kg
Wetted surface: 12.08 m²

Sails

Mainsail: 21.55 m²
Genoa: 11.4 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 53.85 m²

Design

Type: Melges 24
Builder: Melges Boatworks
Designer: Reichel/Pugh
Year built: 1992

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.

6,43.9,4.607584,52,5.1,60,5.38,75,5.57,90,5.64,110,5.74,120,5.6,135,5.03,143.4,4.583856,150,4.25
8,41.6,5.402528,52,5.98,60,6.19,75,6.33,90,6.49,110,6.69,120,6.59,135,6.16,147.7,5.513085,150,5.39
10,39.2,5.832676,52,6.45,60,6.67,75,6.88,90,6.89,110,7.51,120,7.48,135,6.97,150,6.23,150.3,6.205163
12,38.1,5.959831,52,6.69,60,7.02,75,7.45,90,7.53,110,8.06,120,8.43,135,7.88,148.4,7.056252,150,6.94
14,37.9,6.03231,52,6.82,60,7.19,75,7.8,90,8.27,110,8.56,120,9.12,135,9.03,145.4,8.139599,150,7.74
16,38.1,6.086907,52,6.91,60,7.31,75,8.02,90,8.79,110,9.04,120,9.76,135,10.33,144.5,9.298435,150,8.74
20,38.4,6.163124,52,7.03,60,7.47,75,8.33,90,9.42,110,10.47,120,11.02,135,12.84,141.9,13.165001,150,11.96
24,40,6.174576,52,6.99,60,7.48,75,8.5,90,9.86,110,11.86,120,12.53,135,14.54,147.1,15.626119,150,15.15

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.1	5.38	5.57	5.64	5.74	5.6	5.03	4.25
8	5.98	6.19	6.33	6.49	6.69	6.59	6.16	5.39
10	6.45	6.67	6.88	6.89	7.51	7.48	6.97	6.23
12	6.69	7.02	7.45	7.53	8.06	8.43	7.88	6.94
14	6.82	7.19	7.8	8.27	8.56	9.12	9.03	7.74
16	6.91	7.31	8.02	8.79	9.04	9.76	10.33	8.74
20	7.03	7.47	8.33	9.42	10.47	11.02	12.84	11.96
24	6.99	7.48	8.5	9.86	11.86	12.53	14.54	15.15

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.9°	3.32	143.4°	3.68
8	41.6°	4.04	147.7°	4.66
10	39.2°	4.52	150.3°	5.39
12	38.1°	4.69	148.4°	6.01
14	37.9°	4.76	145.4°	6.7
16	38.1°	4.79	144.5°	7.57
20	38.4°	4.83	141.9°	10.36
24	40°	4.73	147.1°	13.12

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