ARCTOS — ORC Rating | RegattaPages

GPH

524.4

OSN

507.1

LOA

16.4 m

Displacement

10040 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7393

Medium

1.0461

High

1.2283

Triple Offshore

Low

0.9645

Medium

1.3103

High

1.4953

Boat Specifications

Dimensions

Length overall: 16.4 m
Beam: 3.69 m
Draft: 2.7 m
Displacement: 10040 kg
Crew weight: 1198 kg
Wetted surface: 46.61 m²

Sails

Mainsail: 61.72 m²
Genoa: 59.41 m²
Spinnaker: 164.77 m²
Asymmetric spinnaker: 0 m²

Design

Type: RADFORD 55
Builder: McIntyre
Designer: Graham Radford
Year built: 2001
Stability index: 122.8

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.

6,44.4,5.444575,52,6.02,60,6.41,75,6.74,90,6.62,110,6.38,120,6.21,135,5.56,142.1,5.11986,150,4.67
8,43,6.686231,52,7.46,60,7.89,75,8.19,90,8.08,110,8.04,120,7.85,135,7.08,141.2,6.646667,150,5.98
10,41.8,7.605879,52,8.44,60,8.74,75,8.95,90,8.92,110,9.05,120,8.96,135,8.42,145.1,7.62054,150,7.21
12,40.2,7.8555,52,8.74,60,9.02,75,9.34,90,9.4,110,9.52,120,9.61,135,9.18,150,8.35,150.9,8.285912
14,39.4,7.984641,52,8.87,60,9.15,75,9.57,90,9.87,110,9.87,120,10.23,135,9.83,150,9.08,156.8,8.703832
16,39,8.067982,52,8.95,60,9.24,75,9.73,90,10.25,110,10.22,120,10.66,135,10.61,150,9.67,164,8.946575
20,38.2,8.271226,52,9.16,60,9.44,75,9.9,90,10.65,110,11.06,120,11.49,135,12.41,150,11.16,157.4,10.52848

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.02	6.41	6.74	6.62	6.38	6.21	5.56	4.67
8	7.46	7.89	8.19	8.08	8.04	7.85	7.08	5.98
10	8.44	8.74	8.95	8.92	9.05	8.96	8.42	7.21
12	8.74	9.02	9.34	9.4	9.52	9.61	9.18	8.35
14	8.87	9.15	9.57	9.87	9.87	10.23	9.83	9.08
16	8.95	9.24	9.73	10.25	10.22	10.66	10.61	9.67
20	9.16	9.44	9.9	10.65	11.06	11.49	12.41	11.16

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.4°	3.89	142.1°	4.04
8	43°	4.89	141.2°	5.18
10	41.8°	5.67	145.1°	6.25
12	40.2°	6	150.9°	7.24
14	39.4°	6.17	156.8°	8
16	39°	6.27	164°	8.6
20	38.2°	6.5	157.4°	9.72

Loading polar chart…