ADRIFT — ORC Rating | RegattaPages

GPH

753.1

OSN

724.3

LOA

9.08 m

Displacement

4513 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5236

Medium

0.7362

High

0.8693

Triple Offshore

Low

0.6742

Medium

0.9106

High

1.0353

Boat Specifications

Dimensions

Length overall: 9.08 m
Beam: 3.3 m
Draft: 1.85 m
Displacement: 4513 kg
Crew weight: 320 kg
Wetted surface: 21.04 m²

Sails

Mainsail: 18.47 m²
Genoa: 27.54 m²
Spinnaker: 60.67 m²
Asymmetric spinnaker: 0 m²

Design

Type: GIBSEA 312
Builder: GIB'SEA MARINE
Designer: HUMPHREYS
Year built: 1990
Stability index: 113.8

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.

6,44.5,3.771466,52,4.14,60,4.38,75,4.52,90,4.47,110,4.6,120,4.45,135,3.97,146.6,3.533578,150,3.4
8,42.1,4.488017,52,5,60,5.23,75,5.41,90,5.46,110,5.64,120,5.51,135,5.04,150,4.41,150.2,4.402111
10,41.1,5.016167,52,5.6,60,5.83,75,6.01,90,6.14,110,6.31,120,6.24,135,5.89,150,5.29,152.4,5.179397
12,40.5,5.405008,52,6,60,6.19,75,6.37,90,6.51,110,6.68,120,6.65,135,6.43,150,6,157.7,5.696006
14,40.2,5.65596,52,6.24,60,6.42,75,6.59,90,6.7,110,6.95,120,6.94,135,6.77,150,6.46,169.4,5.941388
16,39.9,5.761471,52,6.36,60,6.55,75,6.75,90,6.82,110,7.18,120,7.2,135,7.05,150,6.77,177.2,6.317542
20,40,5.822117,52,6.43,60,6.65,75,6.95,90,7.11,110,7.48,120,7.7,135,7.62,150,7.3,179,6.901051

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.14	4.38	4.52	4.47	4.6	4.45	3.97	3.4
8	5	5.23	5.41	5.46	5.64	5.51	5.04	4.41
10	5.6	5.83	6.01	6.14	6.31	6.24	5.89	5.29
12	6	6.19	6.37	6.51	6.68	6.65	6.43	6
14	6.24	6.42	6.59	6.7	6.95	6.94	6.77	6.46
16	6.36	6.55	6.75	6.82	7.18	7.2	7.05	6.77
20	6.43	6.65	6.95	7.11	7.48	7.7	7.62	7.3

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.5°	2.69	146.6°	2.95
8	42.1°	3.33	150.2°	3.82
10	41.1°	3.78	152.4°	4.59
12	40.5°	4.11	157.7°	5.27
14	40.2°	4.32	169.4°	5.84
16	39.9°	4.42	177.2°	6.31
20	40°	4.46	179°	6.9

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