KING BILLY — ORC Rating

GPH

641

OSN

622.8

LOA

11.5 m

Displacement

7473 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7058

Medium

0.9612

High

1.1299

Triple Offshore

Low

0.9142

Medium

1.1894

High

1.3465

Boat Specifications

Dimensions

Length overall: 11.5 m
Beam: 3.83 m
Draft: 2.06 m
Displacement: 7473 kg
Crew weight: 670 kg
Wetted surface: 30.34 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

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.

6,43.9,4.593706,52,5.1,60,5.41,75,5.7,90,5.7,110,5.4,120,5.26,135,4.79,146.2,4.247973,150,4.08
8,42.5,5.371113,52,6.02,60,6.39,75,6.68,90,6.7,110,6.57,120,6.4,135,5.87,150,5.13,150.6,5.096338
10,43.1,6.094536,52,6.72,60,6.96,75,7.15,90,7.18,110,7.21,120,7.12,135,6.78,150,6.04,151.7,5.951317
12,41.9,6.502653,52,7.07,60,7.26,75,7.43,90,7.47,110,7.59,120,7.51,135,7.28,150,6.83,155.9,6.551026
14,40.4,6.631314,52,7.24,60,7.45,75,7.66,90,7.71,110,7.93,120,7.86,135,7.61,150,7.27,173.9,6.657696
16,39.5,6.700149,52,7.33,60,7.55,75,7.86,90,7.95,110,8.22,120,8.24,135,7.95,150,7.59,180,7.12
20,38.8,6.76215,52,7.41,60,7.65,75,8.11,90,8.42,110,8.54,120,8.86,135,8.69,150,8.24,180,7.76

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.1	5.41	5.7	5.7	5.4	5.26	4.79	4.08
8	6.02	6.39	6.68	6.7	6.57	6.4	5.87	5.13
10	6.72	6.96	7.15	7.18	7.21	7.12	6.78	6.04
12	7.07	7.26	7.43	7.47	7.59	7.51	7.28	6.83
14	7.24	7.45	7.66	7.71	7.93	7.86	7.61	7.27
16	7.33	7.55	7.86	7.95	8.22	8.24	7.95	7.59
20	7.41	7.65	8.11	8.42	8.54	8.86	8.69	8.24

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.9°	3.31	146.2°	3.53
8	42.5°	3.96	150.6°	4.44
10	43.1°	4.45	151.7°	5.24
12	41.9°	4.84	155.9°	5.98
14	40.4°	5.05	173.9°	6.62
16	39.5°	5.17	180°	7.12
20	38.8°	5.27	180°	7.76

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