Isidora — ORC Rating | RegattaPages

GPH

819.4

OSN

789.5

LOA

7.45 m

Displacement

1700 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.4842

Medium

0.6773

High

0.801

Triple Offshore

Low

0.6235

Medium

0.8339

High

0.9511

Boat Specifications

Dimensions

Length overall: 7.45 m
Beam: 2.51 m
Draft: 1.43 m
Displacement: 1700 kg
Crew weight: 356 kg
Wetted surface: 12.62 m²

Sails

Mainsail: 10.58 m²
Genoa: 17.91 m²
Spinnaker: 37.15 m²
Asymmetric spinnaker: 0 m²

Design

Type: BRIGAND 750
Builder: DROMOR
Designer: CAMPER & NICHOLSON
Year built: 1991
Stability index: 115.3

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.

6,44.4,3.40111,52,3.76,60,3.99,75,4.14,90,4.19,110,4.29,120,4.17,135,3.77,148.4,3.322661,150,3.27
8,42.6,4.034794,52,4.53,60,4.79,75,4.96,90,5.15,110,5.25,120,5.13,135,4.69,150,4.16,152.3,4.077283
10,42.9,4.627715,52,5.13,60,5.35,75,5.49,90,5.69,110,5.76,120,5.69,135,5.44,150,4.95,153.8,4.792377
12,41.4,4.99926,52,5.47,60,5.62,75,5.75,90,5.97,110,6.09,120,6.02,135,5.83,150,5.54,161.3,5.204758
14,39.9,5.200966,52,5.67,60,5.8,75,5.95,90,6.13,110,6.41,120,6.35,135,6.14,150,5.87,174.8,5.462481
16,39.3,5.272406,52,5.77,60,5.93,75,6.13,90,6.24,110,6.69,120,6.69,135,6.47,150,6.16,179,5.78088
20,39.4,5.305839,52,5.81,60,6.01,75,6.36,90,6.58,110,6.99,120,7.22,135,7.13,150,6.77,178.1,6.333482

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.76	3.99	4.14	4.19	4.29	4.17	3.77	3.27
8	4.53	4.79	4.96	5.15	5.25	5.13	4.69	4.16
10	5.13	5.35	5.49	5.69	5.76	5.69	5.44	4.95
12	5.47	5.62	5.75	5.97	6.09	6.02	5.83	5.54
14	5.67	5.8	5.95	6.13	6.41	6.35	6.14	5.87
16	5.77	5.93	6.13	6.24	6.69	6.69	6.47	6.16
20	5.81	6.01	6.36	6.58	6.99	7.22	7.13	6.77

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.4°	2.43	148.4°	2.83
8	42.6°	2.97	152.3°	3.61
10	42.9°	3.39	153.8°	4.3
12	41.4°	3.75	161.3°	4.93
14	39.9°	3.99	174.8°	5.44
16	39.3°	4.08	179°	5.78
20	39.4°	4.1	178.1°	6.33

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