Bella J — ORC Rating | RegattaPages

GPH

559.2

OSN

542.5

LOA

13.14 m

Displacement

8785 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7248

Medium

0.9873

High

1.1207

Triple Offshore

Low

0.9367

Medium

1.2134

High

1.3528

Boat Specifications

Dimensions

Length overall: 13.14 m
Beam: 3.87 m
Draft: 2.28 m
Displacement: 8785 kg
Crew weight: 840 kg
Wetted surface: 37.17 m²

Sails

Mainsail: 56.58 m²
Genoa: 46 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 209.04 m²

Design

Type: J133
Builder: TPI
Designer: Rod Johnstone
Year built: 2004
Stability index: 125.1

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.

6,43.6,5.081667,52,5.66,60,6.02,75,6.32,90,6.28,110,6.5,120,6.39,135,5.73,143.8,5.217109,150,4.86
8,41.8,6.06324,52,6.81,60,7.15,75,7.4,90,7.5,110,7.77,120,7.72,135,7.26,146.6,6.336484,150,6.11
10,40.8,6.816425,52,7.57,60,7.8,75,7.96,90,7.97,110,8.31,120,8.34,135,8.1,147.3,7.498418,150,7.29
12,39.4,7.13053,52,7.88,60,8.09,75,8.28,90,8.32,110,8.59,120,8.81,135,8.62,150,8.08,151.8,7.965474
14,38.4,7.247732,52,8.01,60,8.23,75,8.51,90,8.62,110,8.86,120,9.18,135,9.22,150,8.49,150.9,8.423248
16,38.1,7.332245,52,8.08,60,8.31,75,8.68,90,8.93,110,9.13,120,9.53,135,9.87,147.5,9.153519,150,8.91
20,37.6,7.522501,52,8.22,60,8.42,75,8.86,90,9.4,110,9.62,120,10.18,135,11.23,143.4,10.899115,150,10.1

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.66	6.02	6.32	6.28	6.5	6.39	5.73	4.86
8	6.81	7.15	7.4	7.5	7.77	7.72	7.26	6.11
10	7.57	7.8	7.96	7.97	8.31	8.34	8.1	7.29
12	7.88	8.09	8.28	8.32	8.59	8.81	8.62	8.08
14	8.01	8.23	8.51	8.62	8.86	9.18	9.22	8.49
16	8.08	8.31	8.68	8.93	9.13	9.53	9.87	8.91
20	8.22	8.42	8.86	9.4	9.62	10.18	11.23	10.1

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	3.68	143.8°	4.21
8	41.8°	4.52	146.6°	5.29
10	40.8°	5.16	147.3°	6.31
12	39.4°	5.51	151.8°	7.02
14	38.4°	5.68	150.9°	7.36
16	38.1°	5.77	147.5°	7.72
20	37.6°	5.96	143.4°	8.75

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