JULIE III — ORC Rating

GPH

732.7

OSN

709.1

LOA

9.33 m

Displacement

5180 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6137

Medium

0.8433

High

1.0136

Triple Offshore

Low

0.7895

Medium

1.0437

High

1.1996

Boat Specifications

Dimensions

Length overall: 9.33 m
Beam: 3.15 m
Draft: 1.8 m
Displacement: 5180 kg
Crew weight: 535 kg
Wetted surface: 23.28 m²

Sails

Mainsail: 19.28 m²
Genoa: 32.4 m²
Spinnaker: 65.9 m²
Asymmetric spinnaker: 0 m²

Design

Type: MIURA
Builder: ROBIN GREEN
Designer: BERCKMEYER
Year built: 1970

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.

6,43.6,3.894103,52,4.34,60,4.59,75,4.78,90,4.72,110,4.77,120,4.64,135,4.22,147.8,3.710737,150,3.62
8,41.6,4.519937,52,5.11,60,5.39,75,5.61,90,5.62,110,5.77,120,5.63,135,5.16,150,4.57,151.9,4.48915
10,41.5,5.073731,52,5.73,60,6,75,6.19,90,6.32,110,6.41,120,6.34,135,6.01,150,5.37,153.3,5.216196
12,41.8,5.607156,52,6.16,60,6.34,75,6.48,90,6.66,110,6.75,120,6.7,135,6.49,150,6.09,157.7,5.771664
14,40,5.861279,52,6.4,60,6.55,75,6.68,90,6.89,110,7.04,120,6.98,135,6.79,150,6.5,176.5,5.961119
16,39.3,6.021915,52,6.55,60,6.7,75,6.86,90,7,110,7.33,120,7.29,135,7.07,150,6.78,180,6.4
20,38.7,6.086385,52,6.65,60,6.84,75,7.14,90,7.28,110,7.73,120,7.86,135,7.67,150,7.31,180,6.93

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.34	4.59	4.78	4.72	4.77	4.64	4.22	3.62
8	5.11	5.39	5.61	5.62	5.77	5.63	5.16	4.57
10	5.73	6	6.19	6.32	6.41	6.34	6.01	5.37
12	6.16	6.34	6.48	6.66	6.75	6.7	6.49	6.09
14	6.4	6.55	6.68	6.89	7.04	6.98	6.79	6.5
16	6.55	6.7	6.86	7	7.33	7.29	7.07	6.78
20	6.65	6.84	7.14	7.28	7.73	7.86	7.67	7.31

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	2.82	147.8°	3.14
8	41.6°	3.38	151.9°	3.96
10	41.5°	3.8	153.3°	4.66
12	41.8°	4.18	157.7°	5.34
14	40°	4.49	176.5°	5.95
16	39.3°	4.66	180°	6.4
20	38.7°	4.75	180°	6.93

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