Illusion — ORC Rating

GPH

647.3

OSN

630.9

LOA

8.3 m

Displacement

2721 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7274

Medium

0.9585

High

1.0785

Triple Offshore

Low

0.9302

Medium

1.1671

High

1.2936

Boat Specifications

Dimensions

Length overall: 8.3 m
Beam: 3.03 m
Draft: 2.14 m
Displacement: 2721 kg
Crew weight: 524 kg
Wetted surface: 19.35 m²

Sails

Mainsail: 29.08 m²
Genoa: 25.17 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 65.07 m²

Design

Type: First 27.7
Builder: Beneteau
Designer: Groupe Finot
Year built: 2004

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.

6,41.3,4.632192,52,5.22,60,5.48,75,5.69,90,5.62,110,5.57,120,5.4,135,4.86,145.1,4.365045,150,4.14
8,40,5.430494,52,6.09,60,6.27,75,6.4,90,6.46,110,6.51,120,6.39,135,5.95,148.2,5.259488,150,5.16
10,37.9,5.9436,52,6.53,60,6.65,75,6.75,90,6.87,110,6.96,120,6.87,135,6.6,149,6.07816,150,6.02
12,36.2,6.07217,52,6.7,60,6.86,75,7.03,90,7.08,110,7.42,120,7.33,135,7.01,150,6.52,151.1,6.465139
14,35.6,6.124702,52,6.77,60,6.95,75,7.26,90,7.41,110,7.82,120,7.86,135,7.47,150,6.84,175.6,6.188238
16,35.4,6.158544,52,6.81,60,7,75,7.37,90,7.72,110,8.1,120,8.4,135,8,150,7.15,177.8,6.614876
20,35.8,6.251049,52,6.88,60,7.07,75,7.47,90,8.05,110,8.56,120,9.19,135,9.38,150,8.08,177.6,7.266374

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.22	5.48	5.69	5.62	5.57	5.4	4.86	4.14
8	6.09	6.27	6.4	6.46	6.51	6.39	5.95	5.16
10	6.53	6.65	6.75	6.87	6.96	6.87	6.6	6.02
12	6.7	6.86	7.03	7.08	7.42	7.33	7.01	6.52
14	6.77	6.95	7.26	7.41	7.82	7.86	7.47	6.84
16	6.81	7	7.37	7.72	8.1	8.4	8	7.15
20	6.88	7.07	7.47	8.05	8.56	9.19	9.38	8.08

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.3°	3.48	145.1°	3.58
8	40°	4.16	148.2°	4.47
10	37.9°	4.69	149°	5.21
12	36.2°	4.9	151.1°	5.66
14	35.6°	4.98	175.6°	6.17
16	35.4°	5.02	177.8°	6.61
20	35.8°	5.07	177.6°	7.26

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