Red King — ORC Rating

GPH

740.9

OSN

719.6

LOA

9.387 m

Displacement

4768 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5417

Medium

0.7388

High

0.8577

Triple Offshore

Low

0.7019

Medium

0.9168

High

1.0278

Boat Specifications

Dimensions

Length overall: 9.387 m
Beam: 3.02 m
Draft: 1.74 m
Displacement: 4768 kg
Crew weight: 456 kg
Wetted surface: 20.19 m²

Sails

Mainsail: 18.07 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: 137.3

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.

6,43.8,3.75471,52,4.17,60,4.41,75,4.83,90,5,110,4.86,120,4.71,135,4.32,148.4,3.804036,150,3.74
8,41.8,4.386459,52,4.91,60,5.18,75,5.73,90,5.93,110,5.88,120,5.78,135,5.29,150,4.66,152.3,4.574237
10,41.4,4.892609,52,5.52,60,5.8,75,6.23,90,6.38,110,6.4,120,6.36,135,6.12,150,5.54,150.7,5.50415
12,41.8,5.365699,52,5.94,60,6.14,75,6.47,90,6.64,110,6.71,120,6.69,135,6.51,150,6.19,159.2,5.872753
14,41.8,5.647398,52,6.16,60,6.34,75,6.6,90,6.85,110,6.96,120,6.98,135,6.81,150,6.53,173,6.065209
16,41.7,5.745755,52,6.27,60,6.46,75,6.66,90,7.01,110,7.2,120,7.27,135,7.13,150,6.81,178.1,6.403521
20,42.4,5.795882,52,6.31,60,6.54,75,6.86,90,7.19,110,7.55,120,7.71,135,7.71,150,7.39,179,6.931056

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.17	4.41	4.83	5	4.86	4.71	4.32	3.74
8	4.91	5.18	5.73	5.93	5.88	5.78	5.29	4.66
10	5.52	5.8	6.23	6.38	6.4	6.36	6.12	5.54
12	5.94	6.14	6.47	6.64	6.71	6.69	6.51	6.19
14	6.16	6.34	6.6	6.85	6.96	6.98	6.81	6.53
16	6.27	6.46	6.66	7.01	7.2	7.27	7.13	6.81
20	6.31	6.54	6.86	7.19	7.55	7.71	7.71	7.39

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	2.71	148.4°	3.24
8	41.8°	3.27	152.3°	4.05
10	41.4°	3.67	150.7°	4.8
12	41.8°	4	159.2°	5.49
14	41.8°	4.21	173°	6.02
16	41.7°	4.29	178.1°	6.4
20	42.4°	4.28	179°	6.93

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