BIRBA — ORC Rating | RegattaPages

GPH

622.1

OSN

603.7

LOA

12.01 m

Displacement

7350 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6637

Medium

0.8923

High

1.0259

Triple Offshore

Low

0.8506

Medium

1.0854

High

1.2055

Boat Specifications

Dimensions

Length overall: 12.01 m
Beam: 3.86 m
Draft: 2.22 m
Displacement: 7350 kg
Crew weight: 631 kg
Wetted surface: 30.41 m²

Sails

Mainsail: 39.43 m²
Genoa: 49.28 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 89.1 m²

Design

Type: RONDO MT12
Builder: BIASI COSNAU
Designer: SCIOMACHEN
Year built: 1995

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.

6,42.4,4.956292,52,5.52,60,5.77,75,5.92,90,5.8,110,5.6,120,5.39,135,4.86,143.8,4.399225,150,4.1
8,40.4,5.777779,52,6.42,60,6.62,75,6.73,90,6.71,110,6.66,120,6.51,135,6,147.3,5.347525,150,5.19
10,38.8,6.274556,52,6.91,60,7.05,75,7.14,90,7.22,110,7.24,120,7.15,135,6.81,150,6.12,151.6,6.025133
12,37.5,6.516642,52,7.16,60,7.29,75,7.41,90,7.53,110,7.6,120,7.55,135,7.29,150,6.82,156.9,6.512133
14,36.9,6.640117,52,7.29,60,7.44,75,7.6,90,7.75,110,7.9,120,7.87,135,7.64,150,7.27,169.1,6.711076
16,36.5,6.705174,52,7.37,60,7.53,75,7.75,90,7.92,110,8.17,120,8.17,135,7.95,150,7.59,177.7,7.085708
20,36.2,6.766132,52,7.45,60,7.64,75,7.93,90,8.17,110,8.68,120,8.82,135,8.64,150,8.19,179,7.721176
24,36.7,6.797413,52,7.48,60,7.69,75,8.05,90,8.4,110,9.18,120,9.48,135,9.54,150,8.92,179,8.301264

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.52	5.77	5.92	5.8	5.6	5.39	4.86	4.1
8	6.42	6.62	6.73	6.71	6.66	6.51	6	5.19
10	6.91	7.05	7.14	7.22	7.24	7.15	6.81	6.12
12	7.16	7.29	7.41	7.53	7.6	7.55	7.29	6.82
14	7.29	7.44	7.6	7.75	7.9	7.87	7.64	7.27
16	7.37	7.53	7.75	7.92	8.17	8.17	7.95	7.59
20	7.45	7.64	7.93	8.17	8.68	8.82	8.64	8.19
24	7.48	7.69	8.05	8.4	9.18	9.48	9.54	8.92

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.66	143.8°	3.55
8	40.4°	4.4	147.3°	4.5
10	38.8°	4.89	151.6°	5.3
12	37.5°	5.17	156.9°	5.99
14	36.9°	5.31	169.1°	6.59
16	36.5°	5.39	177.7°	7.08
20	36.2°	5.46	179°	7.72
24	36.7°	5.45	179°	8.3

Loading polar chart…