Isabelo — ORC Rating | RegattaPages

GPH

753.1

OSN

734.3

LOA

8.3 m

Displacement

2424 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5326

Medium

0.7242

High

0.8198

Triple Offshore

Low

0.6948

Medium

0.9012

High

0.9973

Boat Specifications

Dimensions

Length overall: 8.3 m
Beam: 2.79 m
Draft: 1.13 m
Displacement: 2424 kg
Crew weight: 260 kg
Wetted surface: 15.29 m²

Sails

Mainsail: 21 m²
Genoa: 18.06 m²
Spinnaker: 37.04 m²
Asymmetric spinnaker: 0 m²

Design

Type: Finn Express 83
Designer: Eivind Still
Year built: 1981

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.

6,45,3.903229,52,4.32,60,4.64,75,4.9,90,4.87,110,4.82,120,4.66,135,4.12,149,3.558232,150,3.52
8,44.2,4.603084,52,5.1,60,5.44,75,5.71,90,5.73,110,5.8,120,5.66,135,5.1,150,4.47,153.5,4.335513
10,44.1,5.152297,52,5.67,60,5.92,75,6.11,90,6.22,110,6.29,120,6.22,135,5.94,150,5.32,153,5.185147
12,44.1,5.472575,52,5.93,60,6.14,75,6.33,90,6.49,110,6.61,120,6.55,135,6.34,150,6.01,166,5.513783
14,43.5,5.541966,52,6.03,60,6.25,75,6.5,90,6.64,110,6.93,120,6.88,135,6.65,150,6.36,180,5.93
16,43.5,5.569538,52,6.06,60,6.29,75,6.62,90,6.83,110,7.24,120,7.23,135,6.99,150,6.66,180,6.3
20,45,5.557859,52,6.03,60,6.29,75,6.7,90,7.15,110,7.59,120,7.88,135,7.71,150,7.31,180,6.89

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.32	4.64	4.9	4.87	4.82	4.66	4.12	3.52
8	5.1	5.44	5.71	5.73	5.8	5.66	5.1	4.47
10	5.67	5.92	6.11	6.22	6.29	6.22	5.94	5.32
12	5.93	6.14	6.33	6.49	6.61	6.55	6.34	6.01
14	6.03	6.25	6.5	6.64	6.93	6.88	6.65	6.36
16	6.06	6.29	6.62	6.83	7.24	7.23	6.99	6.66
20	6.03	6.29	6.7	7.15	7.59	7.88	7.71	7.31

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45°	2.76	149°	3.05
8	44.2°	3.3	153.5°	3.88
10	44.1°	3.7	153°	4.62
12	44.1°	3.93	166°	5.35
14	43.5°	4.02	180°	5.93
16	43.5°	4.04	180°	6.3
20	45°	3.93	180°	6.89

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