Fair Wind — ORC Rating

GPH

773.9

OSN

749.6

LOA

7.94 m

Displacement

2589 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5908

Medium

0.8054

High

0.9312

Triple Offshore

Low

0.7566

Medium

0.9871

High

1.1077

Boat Specifications

Dimensions

Length overall: 7.94 m
Beam: 2.96 m
Draft: 1.58 m
Displacement: 2589 kg
Crew weight: 375 kg
Wetted surface: 14.91 m²

Sails

Mainsail: 15.74 m²
Genoa: 21.29 m²
Spinnaker: 40.37 m²
Asymmetric spinnaker: 0 m²

Design

Type: FIRST 27
Builder: BENETEAU
Designer: ANDRE MAURIC
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.

6,42.8,3.720715,52,4.16,60,4.38,75,4.54,90,4.48,110,4.52,120,4.39,135,4,148.8,3.518969,150,3.47
8,41.5,4.352727,52,4.93,60,5.2,75,5.37,90,5.4,110,5.48,120,5.35,135,4.91,150,4.36,153,4.242393
10,41.7,4.928759,52,5.47,60,5.66,75,5.8,90,5.92,110,5.98,120,5.91,135,5.65,150,5.12,154.4,4.956574
12,40.3,5.244744,52,5.75,60,5.9,75,6.03,90,6.19,110,6.3,120,6.24,135,6.04,150,5.73,168.8,5.209209
14,39.7,5.406814,52,5.91,60,6.06,75,6.22,90,6.38,110,6.61,120,6.55,135,6.34,150,6.07,180,5.66
16,39.5,5.468981,52,5.98,60,6.16,75,6.39,90,6.49,110,6.88,120,6.86,135,6.65,150,6.34,180,6.01
20,40.4,5.475759,52,5.99,60,6.21,75,6.6,90,6.84,110,7.19,120,7.35,135,7.25,150,6.93,180,6.55

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.16	4.38	4.54	4.48	4.52	4.39	4	3.47
8	4.93	5.2	5.37	5.4	5.48	5.35	4.91	4.36
10	5.47	5.66	5.8	5.92	5.98	5.91	5.65	5.12
12	5.75	5.9	6.03	6.19	6.3	6.24	6.04	5.73
14	5.91	6.06	6.22	6.38	6.61	6.55	6.34	6.07
16	5.98	6.16	6.39	6.49	6.88	6.86	6.65	6.34
20	5.99	6.21	6.6	6.84	7.19	7.35	7.25	6.93

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	2.73	148.8°	3.01
8	41.5°	3.26	153°	3.78
10	41.7°	3.68	154.4°	4.47
12	40.3°	4	168.8°	5.11
14	39.7°	4.16	180°	5.66
16	39.5°	4.22	180°	6.01
20	40.4°	4.17	180°	6.55

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