DIGGER — ORC Rating | RegattaPages

GPH

563.3

OSN

548.1

LOA

13.717 m

Displacement

10910 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7191

Medium

0.9736

High

1.1129

Triple Offshore

Low

0.9317

Medium

1.2026

High

1.3394

Boat Specifications

Dimensions

Length overall: 13.717 m
Beam: 4.21 m
Draft: 2.46 m
Displacement: 10910 kg
Crew weight: 1067 kg
Wetted surface: 41.81 m²

Sails

Mainsail: 58.89 m²
Genoa: 73.15 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 171.68 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.

6,42.8,5.315308,52,5.93,60,6.28,75,6.57,90,6.51,110,6.17,120,6.02,135,5.37,143.5,4.87649,150,4.53
8,41.6,6.285119,52,7.06,60,7.36,75,7.57,90,7.54,110,7.48,120,7.33,135,6.68,147.5,5.845447,150,5.69
10,40.7,7.017226,52,7.72,60,7.91,75,8.05,90,8.06,110,8.15,120,8.06,135,7.68,147,6.975325,150,6.75
12,39,7.283059,52,7.99,60,8.17,75,8.33,90,8.37,110,8.56,120,8.5,135,8.22,149.8,7.613319,150,7.6
14,37.7,7.380974,52,8.12,60,8.31,75,8.56,90,8.65,110,8.95,120,8.95,135,8.62,150,8.04,151,7.980611
16,36.8,7.430707,52,8.19,60,8.4,75,8.74,90,8.93,110,9.24,120,9.42,135,9.09,150,8.36,175,7.46842
20,36.6,7.511047,52,8.26,60,8.49,75,8.93,90,9.41,110,9.71,120,10.18,135,10.13,150,9,178,8.285047

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.93	6.28	6.57	6.51	6.17	6.02	5.37	4.53
8	7.06	7.36	7.57	7.54	7.48	7.33	6.68	5.69
10	7.72	7.91	8.05	8.06	8.15	8.06	7.68	6.75
12	7.99	8.17	8.33	8.37	8.56	8.5	8.22	7.6
14	8.12	8.31	8.56	8.65	8.95	8.95	8.62	8.04
16	8.19	8.4	8.74	8.93	9.24	9.42	9.09	8.36
20	8.26	8.49	8.93	9.41	9.71	10.18	10.13	9

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.9	143.5°	3.92
8	41.6°	4.7	147.5°	4.93
10	40.7°	5.32	147°	5.85
12	39°	5.66	149.8°	6.58
14	37.7°	5.84	151°	6.98
16	36.8°	5.95	175°	7.44
20	36.6°	6.03	178°	8.28

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