BELLA — ORC Rating | RegattaPages

GPH

809.5

OSN

784.8

LOA

7.05 m

Displacement

1835 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5072

Medium

0.6841

High

0.7843

Triple Offshore

Low

0.6484

Medium

0.8364

High

0.9318

Boat Specifications

Dimensions

Length overall: 7.05 m
Beam: 2.5 m
Draft: 1.31 m
Displacement: 1835 kg
Crew weight: 390 kg
Wetted surface: 12.28 m²

Sails

Mainsail: 11.88 m²
Genoa: 15.09 m²
Spinnaker: 37.77 m²
Asymmetric spinnaker: 40.02 m²

Design

Type: BELLONA 23
Builder: Rootsi
Year built: 1976
Stability index: 119.8

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.

6,43.2,3.552965,52,3.93,60,4.11,75,4.22,90,4.38,110,4.47,120,4.32,135,3.96,146,3.582467,150,3.43
8,41.8,4.171831,52,4.65,60,4.84,75,4.96,90,5.23,110,5.31,120,5.21,135,4.86,146,4.450944,150,4.26
10,41.2,4.651689,52,5.15,60,5.3,75,5.41,90,5.67,110,5.75,120,5.69,135,5.48,150,4.98,155.6,4.76565
12,39.7,4.899925,52,5.4,60,5.54,75,5.67,90,5.91,110,6.07,120,6.03,135,5.84,150,5.5,167.6,5.057991
14,39,5.03123,52,5.54,60,5.69,75,5.86,90,6.06,110,6.34,120,6.33,135,6.14,150,5.82,177.2,5.416467
16,39.1,5.102788,52,5.62,60,5.79,75,6.01,90,6.16,110,6.55,120,6.61,135,6.42,150,6.09,179,5.730873
20,39.9,5.161861,52,5.68,60,5.89,75,6.2,90,6.38,110,6.86,120,7.07,135,6.95,150,6.61,179,6.250952

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.93	4.11	4.22	4.38	4.47	4.32	3.96	3.43
8	4.65	4.84	4.96	5.23	5.31	5.21	4.86	4.26
10	5.15	5.3	5.41	5.67	5.75	5.69	5.48	4.98
12	5.4	5.54	5.67	5.91	6.07	6.03	5.84	5.5
14	5.54	5.69	5.86	6.06	6.34	6.33	6.14	5.82
16	5.62	5.79	6.01	6.16	6.55	6.61	6.42	6.09
20	5.68	5.89	6.2	6.38	6.86	7.07	6.95	6.61

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	2.59	146°	2.97
8	41.8°	3.11	146°	3.69
10	41.2°	3.5	155.6°	4.34
12	39.7°	3.77	167.6°	4.94
14	39°	3.91	177.2°	5.41
16	39.1°	3.96	179°	5.73
20	39.9°	3.96	179°	6.25

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