X-xs — ORC Rating | RegattaPages

GPH

707.5

OSN

686.6

LOA

7.927 m

Displacement

1942 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5775

Medium

0.7846

High

0.8896

Triple Offshore

Low

0.744

Medium

0.956

High

1.0646

Boat Specifications

Dimensions

Length overall: 7.927 m
Beam: 2.86 m
Draft: 1.4 m
Displacement: 1942 kg
Crew weight: 350 kg
Wetted surface: 14.67 m²

Sails

Mainsail: 21.44 m²
Genoa: 18.73 m²
Spinnaker: 45.97 m²
Asymmetric spinnaker: 0 m²

Design

Type: X79
Builder: X Yachts
Designer: N. Jeppesen
Year built: 1969
Stability index: 97.1

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.

6,43,4.184022,52,4.64,60,4.92,75,5.11,90,5.06,110,5.08,120,4.91,135,4.42,146.6,3.85699,150,3.72
8,42.3,4.975453,52,5.51,60,5.73,75,5.88,90,5.96,110,6.01,120,5.88,135,5.4,150,4.71,151.4,4.647015
10,40.6,5.478937,52,5.99,60,6.13,75,6.24,90,6.39,110,6.46,120,6.38,135,6.11,150,5.59,152.4,5.472783
12,39.3,5.685928,52,6.2,60,6.35,75,6.51,90,6.64,110,6.89,120,6.81,135,6.52,150,6.17,162.8,5.799357
14,38.7,5.740422,52,6.28,60,6.46,75,6.75,90,6.86,110,7.28,120,7.24,135,6.94,150,6.55,177.2,6.077255
16,38.4,5.754801,52,6.31,60,6.52,75,6.9,90,7.15,110,7.55,120,7.7,135,7.36,150,6.94,179,6.430979
20,39.4,5.7976,52,6.32,60,6.55,75,7.01,90,7.5,110,7.95,120,8.47,135,8.43,150,7.77,178.1,7.163939

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.64	4.92	5.11	5.06	5.08	4.91	4.42	3.72
8	5.51	5.73	5.88	5.96	6.01	5.88	5.4	4.71
10	5.99	6.13	6.24	6.39	6.46	6.38	6.11	5.59
12	6.2	6.35	6.51	6.64	6.89	6.81	6.52	6.17
14	6.28	6.46	6.75	6.86	7.28	7.24	6.94	6.55
16	6.31	6.52	6.9	7.15	7.55	7.7	7.36	6.94
20	6.32	6.55	7.01	7.5	7.95	8.47	8.43	7.77

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	3.06	146.6°	3.22
8	42.3°	3.68	151.4°	4.08
10	40.6°	4.16	152.4°	4.85
12	39.3°	4.4	162.8°	5.54
14	38.7°	4.48	177.2°	6.07
16	38.4°	4.51	179°	6.43
20	39.4°	4.48	178.1°	7.16

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