Follow Me — ORC Rating

GPH

784.6

OSN

758

LOA

8.6 m

Displacement

3275 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.499

Medium

0.698

High

0.8435

Triple Offshore

Low

0.6464

Medium

0.8711

High

1.0097

Boat Specifications

Dimensions

Length overall: 8.6 m
Beam: 2.94 m
Draft: 1.58 m
Displacement: 3275 kg
Crew weight: 431 kg
Wetted surface: 18.35 m²

Sails

Mainsail: 17.09 m²
Genoa: 23.73 m²
Spinnaker: 41.84 m²
Asymmetric spinnaker: 0 m²

Design

Type: Gib Sea 28
Builder: Gibert Marine
Designer: Joubert
Year built: 1978

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.

6,45.4,3.588961,52,3.95,60,4.23,75,4.43,90,4.38,110,4.43,120,4.3,135,3.88,148,3.419617,150,3.35
8,43.9,4.274506,52,4.75,60,5.06,75,5.29,90,5.32,110,5.43,120,5.28,135,4.82,150,4.27,152,4.201835
10,43.5,4.825095,52,5.37,60,5.67,75,5.88,90,6.01,110,6.09,120,6,135,5.64,150,5.06,156,4.8164
12,43.1,5.286496,52,5.8,60,6.01,75,6.17,90,6.35,110,6.43,120,6.36,135,6.14,150,5.75,160,5.374098
14,41.6,5.549626,52,6.05,60,6.21,75,6.37,90,6.6,110,6.74,120,6.65,135,6.45,150,6.17,180,5.67
16,40.5,5.681176,52,6.2,60,6.36,75,6.55,90,6.81,110,7.05,120,6.97,135,6.74,150,6.45,180,6.1
20,40.9,5.768314,52,6.28,60,6.51,75,6.86,90,7.04,110,7.56,120,7.57,135,7.37,150,7.02,180,6.65

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.95	4.23	4.43	4.38	4.43	4.3	3.88	3.35
8	4.75	5.06	5.29	5.32	5.43	5.28	4.82	4.27
10	5.37	5.67	5.88	6.01	6.09	6	5.64	5.06
12	5.8	6.01	6.17	6.35	6.43	6.36	6.14	5.75
14	6.05	6.21	6.37	6.6	6.74	6.65	6.45	6.17
16	6.2	6.36	6.55	6.81	7.05	6.97	6.74	6.45
20	6.28	6.51	6.86	7.04	7.56	7.57	7.37	7.02

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.4°	2.52	148°	2.9
8	43.9°	3.08	152°	3.71
10	43.5°	3.5	156°	4.4
12	43.1°	3.86	160°	5.05
14	41.6°	4.15	180°	5.67
16	40.5°	4.32	180°	6.1
20	40.9°	4.36	180°	6.65

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