RYUJIN — ORC Rating | RegattaPages

GPH

514.7

OSN

500.9

LOA

12.694 m

Displacement

4540 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7947

Medium

1.0511

High

1.2167

Triple Offshore

Low

1.0286

Medium

1.3061

High

1.4966

Boat Specifications

Dimensions

Length overall: 12.694 m
Beam: 3.81 m
Draft: 2.92 m
Displacement: 4540 kg
Crew weight: 818 kg
Wetted surface: 29.25 m²

Sails

Mainsail: 57.62 m²
Genoa: 39.31 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 149.61 m²

Design

Type: Sayer 12
Builder: Jon Sayer
Designer: Jon Sayer
Year built: 2006

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.

6,42.4,5.809424,52,6.54,60,6.95,75,7.28,90,7.22,110,6.99,120,6.77,135,5.97,142,5.469469,150,4.98
8,41.2,6.950952,52,7.7,60,7.94,75,8.12,90,8.08,110,8.14,120,8.06,135,7.57,140.2,7.119767,150,6.32
10,38.2,7.278679,52,8.12,60,8.36,75,8.67,90,8.66,110,8.92,120,8.88,135,8.37,148,7.629284,150,7.47
12,37.3,7.467251,52,8.3,60,8.62,75,9.16,90,9.34,110,9.47,120,9.77,135,9.2,150,8.31,152.5,8.094602
14,36.8,7.555593,52,8.41,60,8.79,75,9.46,90,9.95,110,10.01,120,10.42,135,10.2,149,9.029742,150,8.93
16,36,7.6389,52,8.51,60,8.9,75,9.66,90,10.39,110,10.55,120,11.03,135,11.41,146.5,10.145274,150,9.77
20,36,7.725425,52,8.74,60,9.23,75,9.96,90,10.89,110,12.01,120,12.42,135,13.69,143,13.297681,150,12.26

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.54	6.95	7.28	7.22	6.99	6.77	5.97	4.98
8	7.7	7.94	8.12	8.08	8.14	8.06	7.57	6.32
10	8.12	8.36	8.67	8.66	8.92	8.88	8.37	7.47
12	8.3	8.62	9.16	9.34	9.47	9.77	9.2	8.31
14	8.41	8.79	9.46	9.95	10.01	10.42	10.2	8.93
16	8.51	8.9	9.66	10.39	10.55	11.03	11.41	9.77
20	8.74	9.23	9.96	10.89	12.01	12.42	13.69	12.26

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	4.29	142°	4.31
8	41.2°	5.23	140.2°	5.47
10	38.2°	5.72	148°	6.47
12	37.3°	5.94	152.5°	7.18
14	36.8°	6.05	149°	7.74
16	36°	6.18	146.5°	8.46
20	36°	6.25	143°	10.62

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