JAY HAWKER — ORC Rating

GPH

565.5

OSN

549

LOA

12.244 m

Displacement

6802 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7224

Medium

0.976

High

1.1021

Triple Offshore

Low

0.9316

Medium

1.1964

High

1.3322

Boat Specifications

Dimensions

Length overall: 12.244 m
Beam: 3.67 m
Draft: 2.16 m
Displacement: 6802 kg
Crew weight: 1010 kg
Wetted surface: 32.96 m²

Sails

Mainsail: 47.45 m²
Genoa: 52.09 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 164.94 m²

Design

Type: J 120
Builder: TILLOTSON-PEARSON
Designer: JOHNSTONE
Year built: 1994
Stability index: 124.1

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.

6,43,5.291557,52,5.9,60,6.21,75,6.4,90,6.48,110,6.3,120,6.06,135,5.39,143.4,4.920172,150,4.57
8,41.1,6.263574,52,6.96,60,7.19,75,7.32,90,7.5,110,7.41,120,7.33,135,6.82,146.9,5.992465,150,5.79
10,39,6.832693,52,7.53,60,7.69,75,7.8,90,8,110,8.04,120,8.01,135,7.71,147.8,7.055127,150,6.89
12,37.5,7.058646,52,7.79,60,7.96,75,8.11,90,8.31,110,8.47,120,8.52,135,8.28,150,7.69,150.5,7.652044
14,36.6,7.174732,52,7.92,60,8.11,75,8.36,90,8.55,110,8.89,120,8.99,135,8.82,150,8.11,150.1,8.09785
16,36.3,7.271118,52,8.01,60,8.22,75,8.53,90,8.74,110,9.27,120,9.42,135,9.38,150,8.48,172.1,7.440615
20,35.7,7.351461,52,8.12,60,8.35,75,8.76,90,9.16,110,9.94,120,10.27,135,10.84,150,9.26,174.8,8.233887

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.9	6.21	6.4	6.48	6.3	6.06	5.39	4.57
8	6.96	7.19	7.32	7.5	7.41	7.33	6.82	5.79
10	7.53	7.69	7.8	8	8.04	8.01	7.71	6.89
12	7.79	7.96	8.11	8.31	8.47	8.52	8.28	7.69
14	7.92	8.11	8.36	8.55	8.89	8.99	8.82	8.11
16	8.01	8.22	8.53	8.74	9.27	9.42	9.38	8.48
20	8.12	8.35	8.76	9.16	9.94	10.27	10.84	9.26

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	3.87	143.4°	3.95
8	41.1°	4.72	146.9°	5.02
10	39°	5.31	147.8°	5.97
12	37.5°	5.6	150.5°	6.66
14	36.6°	5.76	150.1°	7.02
16	36.3°	5.86	172.1°	7.37
20	35.7°	5.97	174.8°	8.2

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