OPTIMUS — ORC Rating | RegattaPages

GPH

671.4

OSN

652.3

LOA

8.751 m

Displacement

3087 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6042

Medium

0.823

High

0.9468

Triple Offshore

Low

0.7815

Medium

1.0077

High

1.1323

Boat Specifications

Dimensions

Length overall: 8.751 m
Beam: 3.15 m
Draft: 1.64 m
Displacement: 3087 kg
Crew weight: 495 kg
Wetted surface: 18.91 m²

Sails

Mainsail: 27.8 m²
Genoa: 22.01 m²
Spinnaker: 63 m²
Asymmetric spinnaker: 0 m²

Design

Type: CORUM 280 CR
Builder: Ast. CORUM
Designer: P. GUTIERREZ
Year built: 2007

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.

6,44.2,4.352007,52,4.83,60,5.14,75,5.38,90,5.33,110,5.39,120,5.23,135,4.75,146,4.197638,150,4.02
8,42.8,5.124502,52,5.71,60,6,75,6.22,90,6.29,110,6.4,120,6.28,135,5.82,150,5.046041
10,41.6,5.710097,52,6.27,60,6.46,75,6.61,90,6.76,110,6.86,120,6.8,135,6.53,150,5.95,152,5.855387
12,39.8,6.000389,52,6.55,60,6.71,75,6.87,90,7.02,110,7.27,120,7.2,135,6.93,150,6.56,162,6.140539
14,39,6.086373,52,6.69,60,6.87,75,7.1,90,7.2,110,7.68,120,7.65,135,7.34,150,6.93,180,6.43
16,39,6.163578,52,6.74,60,6.95,75,7.3,90,7.49,110,7.97,120,8.11,135,7.78,150,7.31,180,6.82
20,38.6,6.193056,52,6.78,60,7,75,7.47,90,7.96,110,8.39,120,8.87,135,8.82,150,8.16,180,7.55

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.83	5.14	5.38	5.33	5.39	5.23	4.75	4.02
8	5.71	6	6.22	6.29	6.4	6.28	5.82	5.05
10	6.27	6.46	6.61	6.76	6.86	6.8	6.53	5.95
12	6.55	6.71	6.87	7.02	7.27	7.2	6.93	6.56
14	6.69	6.87	7.1	7.2	7.68	7.65	7.34	6.93
16	6.74	6.95	7.3	7.49	7.97	8.11	7.78	7.31
20	6.78	7	7.47	7.96	8.39	8.87	8.82	8.16

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	3.12	146°	3.48
8	42.8°	3.76	150°	4.37
10	41.6°	4.27	152°	5.17
12	39.8°	4.61	162°	5.84
14	39°	4.73	180°	6.43
16	39°	4.79	180°	6.82
20	38.6°	4.84	180°	7.55

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