ESSENTIALLY CHICKEN — ORC Rating

GPH

589.8

OSN

575.8

LOA

8.5 m

Displacement

1222 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.707

Medium

0.9053

High

1.0625

Triple Offshore

Low

0.9103

Medium

1.1316

High

1.2991

Boat Specifications

Dimensions

Length overall: 8.5 m
Beam: 2.19 m
Draft: 2 m
Displacement: 1222 kg
Crew weight: 350 kg
Wetted surface: 14.47 m²

Sails

Mainsail: 28.06 m²
Genoa: 17.44 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 70.06 m²

Design

Type: Esse 850
Builder: Proteus Yachts
Designer: Felci
Year built: 2004
Stability index: 121

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.

6,43.5,5.087028,52,5.65,60,5.99,75,6.34,90,6.53,110,6.37,120,6.09,135,5.46,143,4.9835,150,4.59
8,40.2,5.86544,52,6.52,60,6.74,75,6.94,90,7.19,110,7.24,120,7.09,135,6.65,146.4,6.08701,150,5.85
10,38.8,6.056423,52,6.73,60,6.99,75,7.45,90,7.66,110,8.13,120,7.99,135,7.52,150,6.72,151.8,6.626548
12,38.4,6.150364,52,6.83,60,7.13,75,7.7,90,8.23,110,8.68,120,8.95,135,8.63,148.7,7.595451,150,7.49
14,38.1,6.239397,52,6.94,60,7.26,75,7.85,90,8.53,110,9.21,120,9.7,135,9.91,145.6,8.883626,150,8.46
16,38,6.29433,52,7.05,60,7.44,75,8.04,90,8.73,110,9.66,120,10.37,135,10.86,140.6,10.896382,150,9.72
20,38.7,6.355467,52,7.12,60,7.55,75,8.37,90,9.23,110,10.48,120,11.39,135,13.05,146.4,13.638745,150,13.11

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.65	5.99	6.34	6.53	6.37	6.09	5.46	4.59
8	6.52	6.74	6.94	7.19	7.24	7.09	6.65	5.85
10	6.73	6.99	7.45	7.66	8.13	7.99	7.52	6.72
12	6.83	7.13	7.7	8.23	8.68	8.95	8.63	7.49
14	6.94	7.26	7.85	8.53	9.21	9.7	9.91	8.46
16	7.05	7.44	8.04	8.73	9.66	10.37	10.86	9.72
20	7.12	7.55	8.37	9.23	10.48	11.39	13.05	13.11

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.69	143°	3.98
8	40.2°	4.48	146.4°	5.07
10	38.8°	4.72	151.8°	5.84
12	38.4°	4.82	148.7°	6.49
14	38.1°	4.91	145.6°	7.33
16	38°	4.96	140.6°	8.42
20	38.7°	4.96	146.4°	11.36

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