Twenty4Fun — ORC Rating

GPH

626.7

OSN

608

LOA

7.509 m

Displacement

853 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7327

Medium

0.9666

High

1.1375

Triple Offshore

Low

0.941

Medium

1.2071

High

1.418

Boat Specifications

Dimensions

Length overall: 7.509 m
Beam: 2.5 m
Draft: 1.52 m
Displacement: 853 kg
Crew weight: 360 kg
Wetted surface: 12.27 m²

Sails

Mainsail: 22.23 m²
Genoa: 11.89 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 56.41 m²

Design

Type: MELGES 24
Builder: ROWEN
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.

6,42.9,4.573111,52,5.12,60,5.42,75,5.66,90,5.78,110,5.87,120,5.73,135,5.1,144.1,4.604702,150,4.31
8,41.5,5.460937,52,6.02,60,6.19,75,6.36,90,6.56,110,6.71,120,6.6,135,6.2,147.7,5.572238,150,5.44
10,38.6,5.860371,52,6.45,60,6.65,75,6.88,90,7,110,7.6,120,7.48,135,6.93,150,6.24,151.4,6.150461
12,37.1,5.980562,52,6.69,60,7.04,75,7.52,90,7.58,110,8.22,120,8.56,135,7.82,148.4,6.985807,150,6.87
14,36.7,6.024129,52,6.81,60,7.2,75,7.91,90,8.43,110,8.76,120,9.31,135,8.98,144.9,8.103651,150,7.66
16,36.8,6.044474,52,6.86,60,7.3,75,8.11,90,9,110,9.32,120,9.89,135,10.32,144.1,9.246438,150,8.65
20,37.2,6.126575,52,7.06,60,7.56,75,8.38,90,9.5,110,10.87,120,11.42,135,13.12,141,13.446637,150,12.07

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.12	5.42	5.66	5.78	5.87	5.73	5.1	4.31
8	6.02	6.19	6.36	6.56	6.71	6.6	6.2	5.44
10	6.45	6.65	6.88	7	7.6	7.48	6.93	6.24
12	6.69	7.04	7.52	7.58	8.22	8.56	7.82	6.87
14	6.81	7.2	7.91	8.43	8.76	9.31	8.98	7.66
16	6.86	7.3	8.11	9	9.32	9.89	10.32	8.65
20	7.06	7.56	8.38	9.5	10.87	11.42	13.12	12.07

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	3.35	144.1°	3.73
8	41.5°	4.09	147.7°	4.71
10	38.6°	4.58	151.4°	5.4
12	37.1°	4.77	148.4°	5.95
14	36.7°	4.83	144.9°	6.63
16	36.8°	4.84	144.1°	7.49
20	37.2°	4.88	141°	10.45

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