MARCI — ORC Rating | RegattaPages

GPH

718.9

OSN

696.9

LOA

9.08 m

Displacement

3500 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.626

Medium

0.8594

High

0.9885

Triple Offshore

Low

0.8099

Medium

1.0658

High

1.194

Boat Specifications

Dimensions

Length overall: 9.08 m
Beam: 3.3 m
Draft: 1.38 m
Displacement: 3500 kg
Crew weight: 400 kg
Wetted surface: 19.25 m²

Sails

Mainsail: 22.3 m²
Genoa: 25.5 m²
Spinnaker: 53.32 m²
Asymmetric spinnaker: 58.09 m²

Design

Type: GIBSEA 312 (SK)
Builder: GIBSEA
Designer: HUMPHREYS
Year built: 1991

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.

6,44.4,3.960963,52,4.37,60,4.64,75,4.86,90,4.92,110,4.99,120,4.82,135,4.36,147.6,3.837372,150,3.74
8,43,4.67626,52,5.22,60,5.52,75,5.77,90,5.96,110,6.04,120,5.88,135,5.38,150,4.73,151.2,4.678727
10,43,5.305231,52,5.89,60,6.14,75,6.32,90,6.51,110,6.59,120,6.5,135,6.2,150,5.59,152.8,5.464257
12,42.3,5.705547,52,6.25,60,6.44,75,6.6,90,6.79,110,6.93,120,6.86,135,6.64,150,6.27,159.5,5.914556
14,41.8,5.848612,52,6.41,60,6.6,75,6.8,90,6.95,110,7.27,120,7.22,135,6.97,150,6.66,180,6.15
16,41.6,5.883941,52,6.47,60,6.69,75,6.97,90,7.1,110,7.57,120,7.59,135,7.33,150,6.97,180,6.56
20,42.8,5.887725,52,6.46,60,6.71,75,7.16,90,7.5,110,7.94,120,8.22,135,8.08,150,7.65,180,7.18

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.37	4.64	4.86	4.92	4.99	4.82	4.36	3.74
8	5.22	5.52	5.77	5.96	6.04	5.88	5.38	4.73
10	5.89	6.14	6.32	6.51	6.59	6.5	6.2	5.59
12	6.25	6.44	6.6	6.79	6.93	6.86	6.64	6.27
14	6.41	6.6	6.8	6.95	7.27	7.22	6.97	6.66
16	6.47	6.69	6.97	7.1	7.57	7.59	7.33	6.97
20	6.46	6.71	7.16	7.5	7.94	8.22	8.08	7.65

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.4°	2.83	147.6°	3.24
8	43°	3.42	151.2°	4.1
10	43°	3.88	152.8°	4.86
12	42.3°	4.22	159.5°	5.54
14	41.8°	4.36	180°	6.15
16	41.6°	4.4	180°	6.56
20	42.8°	4.32	180°	7.18

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