MetaXa — ORC Rating | RegattaPages

GPH

702.5

OSN

682.6

LOA

7.92 m

Displacement

1856 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.658

Medium

0.8891

High

1.0052

Triple Offshore

Low

0.8463

Medium

1.0808

High

1.2047

Boat Specifications

Dimensions

Length overall: 7.92 m
Beam: 2.84 m
Draft: 1.39 m
Displacement: 1856 kg
Crew weight: 378 kg
Wetted surface: 14.64 m²

Sails

Mainsail: 21.3 m²
Genoa: 18.83 m²
Spinnaker: 42.14 m²
Asymmetric spinnaker: 0 m²

Design

Type: X-79
Builder: X Yachts
Designer: N Jeppesen
Year built: 1977

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.

6,42.4,4.225035,52,4.72,60,5.02,75,5.23,90,5.16,110,5.09,120,4.92,135,4.44,147.7,3.844962,150,3.76
8,41.7,4.995726,52,5.57,60,5.8,75,5.94,90,5.96,110,6,120,5.87,135,5.41,150,4.73,151.7,4.656565
10,40.1,5.503833,52,6.03,60,6.16,75,6.28,90,6.39,110,6.44,120,6.35,135,6.09,150,5.57,153.7,5.421164
12,38.6,5.706824,52,6.23,60,6.39,75,6.55,90,6.69,110,6.86,120,6.77,135,6.48,150,6.14,170.3,5.620352
14,38.1,5.756511,52,6.31,60,6.51,75,6.8,90,6.9,110,7.28,120,7.2,135,6.89,150,6.5,180,6.07
16,38.1,5.781926,52,6.35,60,6.56,75,6.95,90,7.19,110,7.64,120,7.66,135,7.3,150,6.88,180,6.42
20,39,5.790418,52,6.35,60,6.59,75,7.06,90,7.56,110,8.06,120,8.64,135,8.32,150,7.68,180,7.14

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.72	5.02	5.23	5.16	5.09	4.92	4.44	3.76
8	5.57	5.8	5.94	5.96	6	5.87	5.41	4.73
10	6.03	6.16	6.28	6.39	6.44	6.35	6.09	5.57
12	6.23	6.39	6.55	6.69	6.86	6.77	6.48	6.14
14	6.31	6.51	6.8	6.9	7.28	7.2	6.89	6.5
16	6.35	6.56	6.95	7.19	7.64	7.66	7.3	6.88
20	6.35	6.59	7.06	7.56	8.06	8.64	8.32	7.68

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.12	147.7°	3.25
8	41.7°	3.73	151.7°	4.1
10	40.1°	4.21	153.7°	4.86
12	38.6°	4.46	170.3°	5.54
14	38.1°	4.53	180°	6.07
16	38.1°	4.55	180°	6.42
20	39°	4.5	180°	7.14

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