ZEPHYR — ORC Rating | RegattaPages

GPH

695.3

OSN

675.4

LOA

8.43 m

Displacement

2820 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6647

Medium

0.8988

High

1.0118

Triple Offshore

Low

0.8546

Medium

1.0938

High

1.2091

Boat Specifications

Dimensions

Length overall: 8.43 m
Beam: 3.02 m
Draft: 1.62 m
Displacement: 2820 kg
Crew weight: 459 kg
Wetted surface: 18.26 m²

Sails

Mainsail: 23.04 m²
Genoa: 22.5 m²
Spinnaker: 74.18 m²
Asymmetric spinnaker: 0 m²

Design

Type: First 285
Builder: Beneteau
Designer: Finot
Year built: 1988

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.

6,42.1,4.110646,52,4.6,60,4.84,75,5.04,90,5.19,110,5.31,120,5.14,135,4.59,147.2,4.068684,150,3.95
8,41.1,4.843654,52,5.46,60,5.71,75,5.88,90,6.12,110,6.22,120,6.14,135,5.71,150,4.94,150.8,4.891616
10,40.8,5.468992,52,6.01,60,6.17,75,6.28,90,6.49,110,6.65,120,6.59,135,6.37,150,5.84,151.8,5.752843
12,39,5.687477,52,6.25,60,6.39,75,6.54,90,6.67,110,7.02,120,7,135,6.74,150,6.4,163.6,6.004291
14,38.5,5.762782,52,6.36,60,6.53,75,6.74,90,6.81,110,7.33,120,7.41,135,7.15,150,6.74,180,6.28
16,38.5,5.788337,52,6.4,60,6.6,75,6.91,90,7.06,110,7.53,120,7.79,135,7.58,150,7.12,180,6.62
20,41.1,5.865465,52,6.39,60,6.61,75,7.06,90,7.46,110,7.86,120,8.24,135,8.48,150,7.92,180,7.33

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.6	4.84	5.04	5.19	5.31	5.14	4.59	3.95
8	5.46	5.71	5.88	6.12	6.22	6.14	5.71	4.94
10	6.01	6.17	6.28	6.49	6.65	6.59	6.37	5.84
12	6.25	6.39	6.54	6.67	7.02	7	6.74	6.4
14	6.36	6.53	6.74	6.81	7.33	7.41	7.15	6.74
16	6.4	6.6	6.91	7.06	7.53	7.79	7.58	7.12
20	6.39	6.61	7.06	7.46	7.86	8.24	8.48	7.92

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.1°	3.05	147.2°	3.42
8	41.1°	3.65	150.8°	4.27
10	40.8°	4.14	151.8°	5.07
12	39°	4.42	163.6°	5.76
14	38.5°	4.51	180°	6.28
16	38.5°	4.53	180°	6.62
20	41.1°	4.42	180°	7.33

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