DIGGER — ORC Rating | RegattaPages

GPH

556.8

OSN

540.5

LOA

13.716 m

Displacement

10914 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7356

Medium

0.9922

High

1.1236

Triple Offshore

Low

0.9461

Medium

1.2158

High

1.3467

Boat Specifications

Dimensions

Length overall: 13.716 m
Beam: 4.21 m
Draft: 2.46 m
Displacement: 10914 kg
Crew weight: 900 kg
Wetted surface: 41.92 m²

Sails

Mainsail: 58.87 m²
Genoa: 70.44 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 182.01 m²

Design

Type: J 44 NEW RUDDER
Builder: TILLOTSON-PEARSON
Designer: JOHNSTONE
Year built: 1989

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.

6,43,5.51033,52,6.12,60,6.42,75,6.61,90,6.44,110,6.21,120,6.07,135,5.39,143,4.933414,150,4.55
8,40.9,6.469508,52,7.19,60,7.42,75,7.54,90,7.45,110,7.49,120,7.36,135,6.79,146.9,5.968591,150,5.78
10,39,7.038575,52,7.76,60,7.93,75,8.03,90,8.01,110,8.17,120,8.11,135,7.75,147.3,7.0825,150,6.88
12,37.6,7.28269,52,8.03,60,8.19,75,8.33,90,8.35,110,8.58,120,8.57,135,8.31,149.9,7.698074,150,7.7
14,36.6,7.386486,52,8.16,60,8.34,75,8.55,90,8.63,110,8.91,120,8.98,135,8.76,150,8.14,150.4,8.108155
16,36.3,7.482055,52,8.24,60,8.43,75,8.71,90,8.86,110,9.16,120,9.37,135,9.21,150,8.46,170.3,7.527619
20,35.8,7.570304,52,8.34,60,8.56,75,8.91,90,9.24,110,9.57,120,10.03,135,10.17,150,9.1,176.1,8.299219
24,35.9,7.616892,52,8.39,60,8.63,75,9.06,90,9.49,110,9.95,120,10.63,135,11.85,150,9.8,176.2,8.959698

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.12	6.42	6.61	6.44	6.21	6.07	5.39	4.55
8	7.19	7.42	7.54	7.45	7.49	7.36	6.79	5.78
10	7.76	7.93	8.03	8.01	8.17	8.11	7.75	6.88
12	8.03	8.19	8.33	8.35	8.58	8.57	8.31	7.7
14	8.16	8.34	8.55	8.63	8.91	8.98	8.76	8.14
16	8.24	8.43	8.71	8.86	9.16	9.37	9.21	8.46
20	8.34	8.56	8.91	9.24	9.57	10.03	10.17	9.1
24	8.39	8.63	9.06	9.49	9.95	10.63	11.85	9.8

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	4.03	143°	3.94
8	40.9°	4.89	146.9°	5
10	39°	5.47	147.3°	5.96
12	37.6°	5.77	149.9°	6.66
14	36.6°	5.93	150.4°	7.05
16	36.3°	6.03	170.3°	7.42
20	35.8°	6.14	176.1°	8.28
24	35.9°	6.17	176.2°	8.94

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