Red King — ORC Rating

GPH

737.8

OSN

718.5

LOA

9.387 m

Displacement

4768 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5467

Medium

0.7403

High

0.8519

Triple Offshore

Low

0.7089

Medium

0.9189

High

1.0241

Boat Specifications

Dimensions

Length overall: 9.387 m
Beam: 3.02 m
Draft: 1.74 m
Displacement: 4768 kg
Crew weight: 454 kg
Wetted surface: 20.31 m²

Sails

Mainsail: 18.05 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.

6,43.5,3.791146,52,4.23,60,4.47,75,4.88,90,5.06,110,4.91,120,4.76,135,4.37,148,3.855913,150,3.77
8,42.2,4.441117,52,4.96,60,5.23,75,5.77,90,5.97,110,5.91,120,5.82,135,5.35,150,4.7,152,4.60956
10,41.2,4.904209,52,5.56,60,5.82,75,6.24,90,6.4,110,6.41,120,6.37,135,6.15,150,5.56,150.5,5.537966
12,42,5.382531,52,5.95,60,6.16,75,6.46,90,6.64,110,6.71,120,6.69,135,6.52,150,6.2,160,5.842336
14,42,5.624745,52,6.15,60,6.34,75,6.57,90,6.84,110,6.96,120,6.98,135,6.81,150,6.53,180,6.06
16,42,5.705483,52,6.24,60,6.44,75,6.65,90,6.99,110,7.17,120,7.27,135,7.12,150,6.79,180,6.42
20,43.1,5.73845,52,6.25,60,6.48,75,6.82,90,7.16,110,7.55,120,7.66,135,7.69,150,7.36,180,6.95

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.23	4.47	4.88	5.06	4.91	4.76	4.37	3.77
8	4.96	5.23	5.77	5.97	5.91	5.82	5.35	4.7
10	5.56	5.82	6.24	6.4	6.41	6.37	6.15	5.56
12	5.95	6.16	6.46	6.64	6.71	6.69	6.52	6.2
14	6.15	6.34	6.57	6.84	6.96	6.98	6.81	6.53
16	6.24	6.44	6.65	6.99	7.17	7.27	7.12	6.79
20	6.25	6.48	6.82	7.16	7.55	7.66	7.69	7.36

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	2.75	148°	3.27
8	42.2°	3.29	152°	4.07
10	41.2°	3.69	150.5°	4.82
12	42°	4	160°	5.49
14	42°	4.18	180°	6.06
16	42°	4.24	180°	6.42
20	43.1°	4.19	180°	6.95

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