AUNT JEAN — ORC Rating

GPH

615.1

OSN

599

LOA

10.79 m

Displacement

4643 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6754

Medium

0.8992

High

1.0233

Triple Offshore

Low

0.8669

Medium

1.0937

High

1.2135

Boat Specifications

Dimensions

Length overall: 10.79 m
Beam: 3.65 m
Draft: 2.12 m
Displacement: 4643 kg
Crew weight: 548 kg
Wetted surface: 25.14 m²

Sails

Mainsail: 32.97 m²
Genoa: 50.67 m²
Spinnaker: 94.52 m²
Asymmetric spinnaker: 0 m²

Design

Type: J-35
Builder: J-Boats
Designer: Johnstone
Year built: 1983

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.

6,42,4.965385,52,5.59,60,5.88,75,6.12,90,6.06,110,5.63,120,5.49,135,4.99,145.5,4.441067,150,4.23
8,41.2,5.887709,52,6.53,60,6.73,75,6.87,90,6.86,110,6.74,120,6.63,135,6.14,149,5.366514,150,5.31
10,39,6.317989,52,6.95,60,7.09,75,7.22,90,7.24,110,7.27,120,7.21,135,6.93,150,6.26,151,6.208413
12,37.9,6.488535,52,7.11,60,7.27,75,7.47,90,7.53,110,7.66,120,7.63,135,7.36,150,6.95,158,6.611418
14,37.1,6.557304,52,7.19,60,7.37,75,7.67,90,7.82,110,8.03,120,8.08,135,7.79,150,7.35,180,6.73
16,36.8,6.593972,52,7.24,60,7.43,75,7.79,90,8.07,110,8.27,120,8.49,135,8.25,150,7.74,180,7.18
20,36.4,6.621992,52,7.27,60,7.49,75,7.92,90,8.39,110,8.66,120,9.08,135,9.26,150,8.61,180,7.93

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.59	5.88	6.12	6.06	5.63	5.49	4.99	4.23
8	6.53	6.73	6.87	6.86	6.74	6.63	6.14	5.31
10	6.95	7.09	7.22	7.24	7.27	7.21	6.93	6.26
12	7.11	7.27	7.47	7.53	7.66	7.63	7.36	6.95
14	7.19	7.37	7.67	7.82	8.03	8.08	7.79	7.35
16	7.24	7.43	7.79	8.07	8.27	8.49	8.25	7.74
20	7.27	7.49	7.92	8.39	8.66	9.08	9.26	8.61

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.69	145.5°	3.66
8	41.2°	4.43	149°	4.6
10	39°	4.91	151°	5.43
12	37.9°	5.12	158°	6.13
14	37.1°	5.23	180°	6.73
16	36.8°	5.28	180°	7.18
20	36.4°	5.33	180°	7.93

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