JUNIOR — ORC Rating | RegattaPages

GPH

664.1

OSN

647.1

LOA

8.032 m

Displacement

1544 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.703

Medium

0.9266

High

1.0531

Triple Offshore

Low

0.9037

Medium

1.1374

High

1.2827

Boat Specifications

Dimensions

Length overall: 8.032 m
Beam: 2.49 m
Draft: 1.51 m
Displacement: 1544 kg
Crew weight: 417 kg
Wetted surface: 13.92 m²

Sails

Mainsail: 21.64 m²
Genoa: 14.53 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 64.63 m²

Design

Type: J-80
Builder: J. COMPOSITE
Designer: R. JOHNSTONE
Year built: 1997

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.

6,42.5,4.32673,52,4.89,60,5.17,75,5.39,90,5.54,110,5.66,120,5.51,135,4.94,145,4.44362,150,4.2
8,41.6,5.161821,52,5.77,60,5.99,75,6.15,90,6.33,110,6.46,120,6.39,135,6.04,147.9,5.371128,150,5.26
10,39.1,5.643992,52,6.21,60,6.35,75,6.49,90,6.63,110,6.98,120,6.94,135,6.62,149.8,6.086027,150,6.07
12,37.6,5.805958,52,6.41,60,6.58,75,6.8,90,6.88,110,7.42,120,7.55,135,7.18,150,6.54,151.2,6.470338
14,37.3,5.883289,52,6.49,60,6.72,75,7.09,90,7.26,110,7.74,120,8.14,135,7.83,150,6.92,176.3,6.142804
16,37.1,5.905335,52,6.54,60,6.79,75,7.28,90,7.64,110,8.04,120,8.59,135,8.62,150,7.41,177.5,6.526212
20,37.2,6.00103,52,6.65,60,6.91,75,7.43,90,8.14,110,8.73,120,9.41,135,10.88,139.3,10.670932,150,9.34

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.89	5.17	5.39	5.54	5.66	5.51	4.94	4.2
8	5.77	5.99	6.15	6.33	6.46	6.39	6.04	5.26
10	6.21	6.35	6.49	6.63	6.98	6.94	6.62	6.07
12	6.41	6.58	6.8	6.88	7.42	7.55	7.18	6.54
14	6.49	6.72	7.09	7.26	7.74	8.14	7.83	6.92
16	6.54	6.79	7.28	7.64	8.04	8.59	8.62	7.41
20	6.65	6.91	7.43	8.14	8.73	9.41	10.88	9.34

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.5°	3.19	145°	3.64
8	41.6°	3.86	147.9°	4.55
10	39.1°	4.38	149.8°	5.26
12	37.6°	4.6	151.2°	5.67
14	37.3°	4.68	176.3°	6.13
16	37.1°	4.71	177.5°	6.52
20	37.2°	4.78	139.3°	8.09

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