X Files — ORC Rating | RegattaPages

GPH

689.3

OSN

670.9

LOA

7.93 m

Displacement

1574 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5984

Medium

0.8004

High

0.8958

Triple Offshore

Low

0.7699

Medium

0.9777

High

1.0884

Boat Specifications

Dimensions

Length overall: 7.93 m
Beam: 2.86 m
Draft: 1.36 m
Displacement: 1574 kg
Crew weight: 360 kg
Wetted surface: 13.83 m²

Sails

Mainsail: 21.05 m²
Genoa: 17.89 m²
Spinnaker: 46.98 m²
Asymmetric spinnaker: 0 m²

Design

Type: X-79
Builder: Nordsoe Verft
Designer: Niels Jeppesen
Year built: 1979

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.

6,42.8,4.361278,52,4.85,60,5.1,75,5.29,90,5.24,110,5.26,120,5.09,135,4.59,147.5,3.924631,150,3.83
8,41.6,5.135076,52,5.69,60,5.88,75,6.01,90,6.08,110,6.13,120,6.02,135,5.58,150,4.83,151,4.790654
10,39.8,5.583876,52,6.1,60,6.25,75,6.38,90,6.5,110,6.64,120,6.53,135,6.24,150,5.7,153,5.566738
12,39,5.713212,52,6.26,60,6.46,75,6.7,90,6.75,110,7.13,120,7.04,135,6.7,150,6.28,170,5.757469
14,38.8,5.7613,52,6.33,60,6.56,75,6.94,90,7.09,110,7.53,120,7.56,135,7.18,150,6.71,180,6.18
16,39,5.77755,52,6.35,60,6.6,75,7.05,90,7.39,110,7.8,120,8.13,135,7.69,150,7.15,180,6.58
20,40.5,5.812685,52,6.37,60,6.63,75,7.12,90,7.69,110,8.37,120,9.1,135,9.4,150,8.24,180,7.42

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.85	5.1	5.29	5.24	5.26	5.09	4.59	3.83
8	5.69	5.88	6.01	6.08	6.13	6.02	5.58	4.83
10	6.1	6.25	6.38	6.5	6.64	6.53	6.24	5.7
12	6.26	6.46	6.7	6.75	7.13	7.04	6.7	6.28
14	6.33	6.56	6.94	7.09	7.53	7.56	7.18	6.71
16	6.35	6.6	7.05	7.39	7.8	8.13	7.69	7.15
20	6.37	6.63	7.12	7.69	8.37	9.1	9.4	8.24

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.2	147.5°	3.31
8	41.6°	3.84	151°	4.19
10	39.8°	4.29	153°	4.96
12	39°	4.44	170°	5.67
14	38.8°	4.49	180°	6.18
16	39°	4.49	180°	6.58
20	40.5°	4.42	180°	7.42

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