Red King — ORC Rating

GPH

740.8

OSN

718.5

LOA

9.387 m

Displacement

4768 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5498

Medium

0.7449

High

0.8465

Triple Offshore

Low

0.7085

Medium

0.9157

High

1.0099

Boat Specifications

Dimensions

Length overall: 9.387 m
Beam: 3.02 m
Draft: 1.74 m
Displacement: 4768 kg
Crew weight: 440 kg
Wetted surface: 20.31 m²

Sails

Mainsail: 18.06 m²
Genoa: 26.37 m²
Spinnaker: 74.96 m²
Asymmetric spinnaker: 59.97 m²

Design

Type: Contest 31 HT
Builder: Conyplex
Designer: D. Zaal
Year built: 1974
Stability index: 135.3

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.

6,43.8,3.86555,52,4.27,60,4.48,75,4.79,90,4.98,110,4.88,120,4.73,135,4.31,147.5,3.806062,150,3.7
8,41.8,4.534016,52,5.04,60,5.26,75,5.63,90,5.83,110,5.83,120,5.75,135,5.32,150,4.68,151.6,4.61548
10,40.6,4.991628,52,5.57,60,5.77,75,6.09,90,6.29,110,6.34,120,6.31,135,6.07,150,5.54,152.9,5.403202
12,40.2,5.302463,52,5.88,60,6.07,75,6.32,90,6.54,110,6.62,120,6.64,135,6.48,150,6.15,161,5.774609
14,40.6,5.478937,52,6.05,60,6.24,75,6.43,90,6.7,110,6.84,120,6.89,135,6.78,150,6.5,173.6,6.017502
16,40.6,5.54479,52,6.13,60,6.33,75,6.56,90,6.82,110,7.03,120,7.11,135,7.05,150,6.78,178.1,6.373504
20,41.8,5.62057,52,6.17,60,6.39,75,6.7,90,6.96,110,7.34,120,7.52,135,7.57,150,7.29,178.4,6.892687

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.27	4.48	4.79	4.98	4.88	4.73	4.31	3.7
8	5.04	5.26	5.63	5.83	5.83	5.75	5.32	4.68
10	5.57	5.77	6.09	6.29	6.34	6.31	6.07	5.54
12	5.88	6.07	6.32	6.54	6.62	6.64	6.48	6.15
14	6.05	6.24	6.43	6.7	6.84	6.89	6.78	6.5
16	6.13	6.33	6.56	6.82	7.03	7.11	7.05	6.78
20	6.17	6.39	6.7	6.96	7.34	7.52	7.57	7.29

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	2.79	147.5°	3.21
8	41.8°	3.38	151.6°	4.06
10	40.6°	3.79	152.9°	4.81
12	40.2°	4.05	161°	5.46
14	40.6°	4.16	173.6°	5.98
16	40.6°	4.21	178.1°	6.37
20	41.8°	4.19	178.4°	6.89

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