KING BILLY — ORC Rating

GPH

634

OSN

614.5

LOA

11.5 m

Displacement

7463 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6406

Medium

0.8734

High

1.0129

Triple Offshore

Low

0.8241

Medium

1.0694

High

1.1975

Boat Specifications

Dimensions

Length overall: 11.5 m
Beam: 3.83 m
Draft: 2.06 m
Displacement: 7463 kg
Crew weight: 670 kg
Wetted surface: 30.1 m²

Sails

Mainsail: 36.89 m²
Genoa: 49.66 m²
Spinnaker: 105.34 m²
Asymmetric spinnaker: 0 m²

Design

Type: KING 38 CUSTOM
Builder: SAILORS BAY B'SHED
Designer: KING
Year built: 1992
Stability index: 119.1

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.

6,43,4.662587,52,5.19,60,5.48,75,5.7,90,5.62,110,5.46,120,5.32,135,4.84,145.7,4.32152,150,4.12
8,41.4,5.439194,52,6.13,60,6.44,75,6.64,90,6.61,110,6.63,120,6.48,135,5.94,150,5.19,150.5,5.1703
10,41.8,6.197383,52,6.78,60,6.96,75,7.09,90,7.12,110,7.23,120,7.16,135,6.84,150,6.12,151.1,6.065351
12,40,6.513982,52,7.08,60,7.23,75,7.36,90,7.43,110,7.59,120,7.54,135,7.31,150,6.89,156.5,6.608073
14,38.8,6.621004,52,7.23,60,7.4,75,7.57,90,7.64,110,7.92,120,7.89,135,7.66,150,7.32,168.5,6.796441
16,38.2,6.680606,52,7.31,60,7.49,75,7.75,90,7.87,110,8.21,120,8.25,135,8.02,150,7.64,177.2,7.138522
20,38.1,6.722283,52,7.37,60,7.58,75,7.96,90,8.28,110,8.54,120,8.87,135,8.77,150,8.33,179,7.771184

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.19	5.48	5.7	5.62	5.46	5.32	4.84	4.12
8	6.13	6.44	6.64	6.61	6.63	6.48	5.94	5.19
10	6.78	6.96	7.09	7.12	7.23	7.16	6.84	6.12
12	7.08	7.23	7.36	7.43	7.59	7.54	7.31	6.89
14	7.23	7.4	7.57	7.64	7.92	7.89	7.66	7.32
16	7.31	7.49	7.75	7.87	8.21	8.25	8.02	7.64
20	7.37	7.58	7.96	8.28	8.54	8.87	8.77	8.33

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	3.41	145.7°	3.57
8	41.4°	4.08	150.5°	4.5
10	41.8°	4.62	151.1°	5.31
12	40°	4.99	156.5°	6.06
14	38.8°	5.16	168.5°	6.66
16	38.2°	5.25	177.2°	7.13
20	38.1°	5.29	179°	7.77

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