Uma — ORC Rating | RegattaPages

GPH

654

OSN

637.6

LOA

9.99 m

Displacement

3896 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.706

Medium

0.9479

High

1.0791

Triple Offshore

Low

0.9103

Medium

1.1613

High

1.2878

Boat Specifications

Dimensions

Length overall: 9.99 m
Beam: 3.35 m
Draft: 1.89 m
Displacement: 3896 kg
Crew weight: 507 kg
Wetted surface: 20.99 m²

Sails

Mainsail: 35.67 m²
Genoa: 29.96 m²
Spinnaker: 58.54 m²
Asymmetric spinnaker: 0 m²

Design

Type: X-102 Mk I
Builder: X-Yachts
Designer: Niels Jeppesen
Year built: 1981

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.

6,41.7,4.593925,52,5.18,60,5.47,75,5.7,90,5.63,110,5.37,120,5.17,135,4.65,146.5,4.089289,150,3.94
8,41.6,5.482763,52,6.12,60,6.35,75,6.51,90,6.5,110,6.44,120,6.27,135,5.69,150,4.94,151.6,4.865579
10,39.9,5.983066,52,6.59,60,6.75,75,6.88,90,6.92,110,6.96,120,6.86,135,6.51,150,5.84,152.5,5.715826
12,39.1,6.159425,52,6.77,60,6.95,75,7.14,90,7.21,110,7.35,120,7.26,135,6.97,150,6.56,161,6.1342
14,39,6.253651,52,6.84,60,7.04,75,7.33,90,7.47,110,7.72,120,7.65,135,7.35,150,6.97,180,6.45
16,38.7,6.265773,52,6.88,60,7.09,75,7.44,90,7.7,110,8.04,120,8.03,135,7.73,150,7.33,180,6.88
20,39.4,6.341125,52,6.92,60,7.13,75,7.54,90,7.98,110,8.39,120,8.73,135,8.52,150,8.06,180,7.58

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.18	5.47	5.7	5.63	5.37	5.17	4.65	3.94
8	6.12	6.35	6.51	6.5	6.44	6.27	5.69	4.94
10	6.59	6.75	6.88	6.92	6.96	6.86	6.51	5.84
12	6.77	6.95	7.14	7.21	7.35	7.26	6.97	6.56
14	6.84	7.04	7.33	7.47	7.72	7.65	7.35	6.97
16	6.88	7.09	7.44	7.7	8.04	8.03	7.73	7.33
20	6.92	7.13	7.54	7.98	8.39	8.73	8.52	8.06

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.7°	3.43	146.5°	3.41
8	41.6°	4.1	151.6°	4.28
10	39.9°	4.59	152.5°	5.07
12	39.1°	4.78	161°	5.8
14	39°	4.86	180°	6.45
16	38.7°	4.89	180°	6.88
20	39.4°	4.9	180°	7.58

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