YPERION — ORC Rating | RegattaPages

GPH

843.7

OSN

821.2

LOA

8.622 m

Displacement

3913 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.4692

Medium

0.6308

High

0.7339

Triple Offshore

Low

0.6113

Medium

0.8067

High

0.9158

Boat Specifications

Dimensions

Length overall: 8.622 m
Beam: 2.73 m
Draft: 1.12 m
Displacement: 3913 kg
Crew weight: 350 kg
Wetted surface: 17.49 m²

Sails

Mainsail: 14.85 m²
Genoa: 22.3 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 53.06 m²

Design

Type: CORINTHIAN 28
Builder: DROMOR
Year built: 1972
Stability index: 108.9

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.

6,47.7,3.387753,52,3.64,60,3.91,75,4.08,90,4.25,110,4.37,120,4.23,135,3.86,145.1,3.511545,150,3.32
8,46.9,4.083283,52,4.38,60,4.64,75,4.84,90,5.14,110,5.28,120,5.17,135,4.78,145.2,4.396278,150,4.17
10,45.6,4.47358,52,4.88,60,5.15,75,5.41,90,5.77,110,5.92,120,5.85,135,5.54,144.8,5.164323,150,4.88
12,45.4,4.799523,52,5.24,60,5.53,75,5.8,90,6.13,110,6.3,120,6.26,135,6.05,145.6,5.659827,150,5.4
14,45.6,5.088161,52,5.51,60,5.8,75,6.06,90,6.32,110,6.57,120,6.57,135,6.39,150,5.76,171.2,5.089917
16,46.2,5.273475,52,5.68,60,5.98,75,6.24,90,6.41,110,6.79,120,6.83,135,6.67,150,6.09,173,5.541304
20,47.2,5.401497,52,5.75,60,6.09,75,6.46,90,6.63,110,7.1,120,7.28,135,7.18,150,6.55,176.3,6.172867

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.64	3.91	4.08	4.25	4.37	4.23	3.86	3.32
8	4.38	4.64	4.84	5.14	5.28	5.17	4.78	4.17
10	4.88	5.15	5.41	5.77	5.92	5.85	5.54	4.88
12	5.24	5.53	5.8	6.13	6.3	6.26	6.05	5.4
14	5.51	5.8	6.06	6.32	6.57	6.57	6.39	5.76
16	5.68	5.98	6.24	6.41	6.79	6.83	6.67	6.09
20	5.75	6.09	6.46	6.63	7.1	7.28	7.18	6.55

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	47.7°	2.28	145.1°	2.88
8	46.9°	2.79	145.2°	3.61
10	45.6°	3.13	144.8°	4.22
12	45.4°	3.37	145.6°	4.67
14	45.6°	3.56	171.2°	5.03
16	46.2°	3.65	173°	5.5
20	47.2°	3.67	176.3°	6.16

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