μ — ORC Rating | RegattaPages

GPH

812.6

OSN

787.8

LOA

5.535 m

Displacement

500 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.4966

Medium

0.6722

High

0.7798

Triple Offshore

Low

0.6404

Medium

0.8294

High

0.9792

Boat Specifications

Dimensions

Length overall: 5.535 m
Beam: 2.38 m
Draft: 1.04 m
Displacement: 500 kg
Crew weight: 230 kg
Wetted surface: 7.78 m²

Sails

Mainsail: 11.18 m²
Genoa: 5.84 m²
Spinnaker: 20.57 m²
Asymmetric spinnaker: 0 m²

Design

Type: A 55 Microcup
Designer: Eivind Amble
Year built: 1982
Stability index: 101.3

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.

6,43.2,3.415785,52,3.83,60,4.07,75,4.24,90,4.56,110,4.55,120,4.39,135,3.94,149.3,3.419192,150,3.39
8,42.3,4.069596,52,4.55,60,4.77,75,5.03,90,5.25,110,5.24,120,5.15,135,4.8,150,4.28,153.8,4.145963
10,41.8,4.507187,52,4.99,60,5.15,75,5.44,90,5.72,110,5.71,120,5.59,135,5.33,150,4.99,161,4.674683
12,41.2,4.797885,52,5.25,60,5.42,75,5.83,90,6.18,110,6.18,120,6.05,135,5.75,150,5.42,177.2,5.015988
14,40.5,4.971029,52,5.5,60,5.71,75,6.14,90,6.72,110,6.75,120,6.56,135,6.2,150,5.82,179,5.390821
16,40.2,5.106075,52,5.74,60,5.98,75,6.26,90,7.12,110,7.54,120,7.24,135,6.72,150,6.24,178.1,5.763168
20,42,5.221055,52,5.91,60,6.33,75,7.03,90,7.6,110,10.22,120,10.87,135,8.46,150,7.35,177.2,6.587865

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.83	4.07	4.24	4.56	4.55	4.39	3.94	3.39
8	4.55	4.77	5.03	5.25	5.24	5.15	4.8	4.28
10	4.99	5.15	5.44	5.72	5.71	5.59	5.33	4.99
12	5.25	5.42	5.83	6.18	6.18	6.05	5.75	5.42
14	5.5	5.71	6.14	6.72	6.75	6.56	6.2	5.82
16	5.74	5.98	6.26	7.12	7.54	7.24	6.72	6.24
20	5.91	6.33	7.03	7.6	10.22	10.87	8.46	7.35

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	2.49	149.3°	2.94
8	42.3°	3.01	153.8°	3.72
10	41.8°	3.36	161°	4.42
12	41.2°	3.61	177.2°	5.01
14	40.5°	3.78	179°	5.39
16	40.2°	3.9	178.1°	5.76
20	42°	3.88	177.2°	6.58

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