CraX — ORC Rating | RegattaPages

GPH

688.5

OSN

671.6

LOA

7.93 m

Displacement

1574 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5983

Medium

0.798

High

0.8924

Triple Offshore

Low

0.7725

Medium

0.9776

High

1.0881

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: 21.62 m²
Genoa: 18.6 m²
Spinnaker: 39.18 m²
Asymmetric spinnaker: 43.19 m²

Design

Type: X-79
Builder: X-Yachts
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.

6,42.8,4.347649,52,4.87,60,5.18,75,5.46,90,5.42,110,5.28,120,5.08,135,4.55,146.5,3.993352,150,3.84
8,42,5.153773,52,5.73,60,5.95,75,6.11,90,6.11,110,6.13,120,6,135,5.55,147.8,4.93977,150,4.83
10,39.8,5.583876,52,6.12,60,6.3,75,6.47,90,6.55,110,6.62,120,6.5,135,6.19,150,5.66,154,5.496254
12,39,5.700345,52,6.27,60,6.49,75,6.79,90,6.86,110,7.12,120,7,135,6.64,150,6.24,171,5.710303
14,39,5.751815,52,6.33,60,6.6,75,6.98,90,7.19,110,7.57,120,7.5,135,7.11,150,6.66,180,6.16
16,39.2,5.768155,52,6.37,60,6.66,75,7.08,90,7.46,110,7.94,120,8.08,135,7.6,150,7.1,180,6.55
20,40.5,5.799534,52,6.36,60,6.69,75,7.18,90,7.71,110,8.59,120,9.43,135,9.14,150,8.09,180,7.38

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.87	5.18	5.46	5.42	5.28	5.08	4.55	3.84
8	5.73	5.95	6.11	6.11	6.13	6	5.55	4.83
10	6.12	6.3	6.47	6.55	6.62	6.5	6.19	5.66
12	6.27	6.49	6.79	6.86	7.12	7	6.64	6.24
14	6.33	6.6	6.98	7.19	7.57	7.5	7.11	6.66
16	6.37	6.66	7.08	7.46	7.94	8.08	7.6	7.1
20	6.36	6.69	7.18	7.71	8.59	9.43	9.14	8.09

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.19	146.5°	3.33
8	42°	3.83	147.8°	4.18
10	39.8°	4.29	154°	4.94
12	39°	4.43	171°	5.64
14	39°	4.47	180°	6.16
16	39.2°	4.47	180°	6.55
20	40.5°	4.41	180°	7.38

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