Red King — ORC Rating

GPH

748.1

OSN

728.2

LOA

9.387 m

Displacement

4768 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6109

Medium

0.8196

High

0.9334

Triple Offshore

Low

0.7885

Medium

1.019

High

1.1292

Boat Specifications

Dimensions

Length overall: 9.387 m
Beam: 3.02 m
Draft: 1.35 m
Displacement: 4768 kg
Crew weight: 455 kg
Wetted surface: 19.55 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.

6,44.7,3.79854,52,4.2,60,4.47,75,4.68,90,4.76,110,4.94,120,4.8,135,4.42,148.4,3.886222,150,3.82
8,43,4.389121,52,4.92,60,5.22,75,5.48,90,5.7,110,5.92,120,5.84,135,5.39,150,4.74,152.4,4.637761
10,43.1,4.916715,52,5.49,60,5.8,75,6.03,90,6.26,110,6.42,120,6.38,135,6.16,150,5.59,150.8,5.556051
12,43.5,5.348962,52,5.89,60,6.13,75,6.31,90,6.52,110,6.7,120,6.69,135,6.53,150,6.22,160.7,5.848691
14,44.1,5.597901,52,6.08,60,6.3,75,6.49,90,6.64,110,6.94,120,6.98,135,6.81,150,6.53,180,6.07
16,44.2,5.677137,52,6.16,60,6.39,75,6.62,90,6.72,110,7.15,120,7.26,135,7.11,150,6.8,180,6.43
20,45.8,5.723178,52,6.15,60,6.42,75,6.77,90,6.98,110,7.42,120,7.64,135,7.68,150,7.35,180,6.95

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.2	4.47	4.68	4.76	4.94	4.8	4.42	3.82
8	4.92	5.22	5.48	5.7	5.92	5.84	5.39	4.74
10	5.49	5.8	6.03	6.26	6.42	6.38	6.16	5.59
12	5.89	6.13	6.31	6.52	6.7	6.69	6.53	6.22
14	6.08	6.3	6.49	6.64	6.94	6.98	6.81	6.53
16	6.16	6.39	6.62	6.72	7.15	7.26	7.11	6.8
20	6.15	6.42	6.77	6.98	7.42	7.64	7.68	7.35

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.7°	2.7	148.4°	3.31
8	43°	3.21	152.4°	4.11
10	43.1°	3.59	150.8°	4.85
12	43.5°	3.88	160.7°	5.52
14	44.1°	4.02	180°	6.07
16	44.2°	4.07	180°	6.43
20	45.8°	3.99	180°	6.95

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