Red King — ORC Rating

GPH

741.8

OSN

718.5

LOA

9.387 m

Displacement

4760 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5491

Medium

0.7452

High

0.8505

Triple Offshore

Low

0.7059

Medium

0.9151

High

1.0127

Boat Specifications

Dimensions

Length overall: 9.387 m
Beam: 3.02 m
Draft: 1.74 m
Displacement: 4760 kg
Crew weight: 440 kg
Wetted surface: 20.39 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

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.

6,44,3.864655,52,4.26,60,4.48,75,4.65,90,4.88,110,4.89,120,4.73,135,4.31,146.9,3.819898,150,3.69
8,41.9,4.541109,52,5.04,60,5.26,75,5.5,90,5.76,110,5.83,120,5.75,135,5.31,150,4.68,150.9,4.635075
10,40.6,4.991628,52,5.57,60,5.77,75,6.02,90,6.24,110,6.34,120,6.31,135,6.07,150,5.53,152.4,5.416363
12,40.1,5.307735,52,5.89,60,6.07,75,6.27,90,6.51,110,6.63,120,6.64,135,6.48,150,6.14,160.4,5.78521
14,40.5,5.510215,52,6.06,60,6.24,75,6.43,90,6.67,110,6.85,120,6.89,135,6.77,150,6.5,173.6,6.007439
16,40.5,5.575969,52,6.15,60,6.34,75,6.56,90,6.8,110,7.03,120,7.11,135,7.04,150,6.77,178.1,6.353493
20,41.2,5.635189,52,6.2,60,6.41,75,6.7,90,6.94,110,7.36,120,7.53,135,7.57,150,7.27,178.8,6.881509
24,42.9,5.637895,52,6.16,60,6.41,75,6.77,90,7.03,110,7.66,120,7.86,135,8.11,150,7.82,178.6,7.342192

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.26	4.48	4.65	4.88	4.89	4.73	4.31	3.69
8	5.04	5.26	5.5	5.76	5.83	5.75	5.31	4.68
10	5.57	5.77	6.02	6.24	6.34	6.31	6.07	5.53
12	5.89	6.07	6.27	6.51	6.63	6.64	6.48	6.14
14	6.06	6.24	6.43	6.67	6.85	6.89	6.77	6.5
16	6.15	6.34	6.56	6.8	7.03	7.11	7.04	6.77
20	6.2	6.41	6.7	6.94	7.36	7.53	7.57	7.27
24	6.16	6.41	6.77	7.03	7.66	7.86	8.11	7.82

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44°	2.78	146.9°	3.2
8	41.9°	3.38	150.9°	4.05
10	40.6°	3.79	152.4°	4.8
12	40.1°	4.06	160.4°	5.45
14	40.5°	4.19	173.6°	5.97
16	40.5°	4.24	178.1°	6.35
20	41.2°	4.24	178.8°	6.88
24	42.9°	4.13	178.6°	7.34

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