ESSENTIALLY CHICKEN — ORC Rating

GPH

594.4

OSN

581.7

LOA

8.5 m

Displacement

1222 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7067

Medium

0.8972

High

1.0418

Triple Offshore

Low

0.9092

Medium

1.1204

High

1.276

Boat Specifications

Dimensions

Length overall: 8.5 m
Beam: 2.19 m
Draft: 2 m
Displacement: 1222 kg
Crew weight: 350 kg
Wetted surface: 14.88 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

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.

6,42.8,5.056357,52,5.67,60,6,75,6.34,90,6.52,110,6.36,120,6.09,135,5.45,143,4.970979,150,4.58
8,40.1,5.869884,52,6.51,60,6.71,75,6.9,90,7.14,110,7.18,120,7.03,135,6.61,146.5,6.020009,150,5.8
10,38.6,6.039509,52,6.7,60,6.94,75,7.38,90,7.57,110,8.04,120,7.9,135,7.4,150,6.69,152,6.546255
12,38.2,6.120707,52,6.79,60,7.07,75,7.61,90,8.11,110,8.59,120,8.8,135,8.39,149,7.408122,150,7.33
14,37.9,6.197058,52,6.88,60,7.17,75,7.75,90,8.4,110,9.09,120,9.57,135,9.62,146,8.564147,150,8.19
16,37.9,6.260423,52,6.98,60,7.35,75,7.9,90,8.58,110,9.51,120,10.2,135,10.66,143.5,10.026661,150,9.3
20,39,6.305122,52,7.02,60,7.42,75,8.2,90,8.98,110,10.22,120,11.17,135,12.71,145.2,13.201011,150,12.51

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.67	6	6.34	6.52	6.36	6.09	5.45	4.58
8	6.51	6.71	6.9	7.14	7.18	7.03	6.61	5.8
10	6.7	6.94	7.38	7.57	8.04	7.9	7.4	6.69
12	6.79	7.07	7.61	8.11	8.59	8.8	8.39	7.33
14	6.88	7.17	7.75	8.4	9.09	9.57	9.62	8.19
16	6.98	7.35	7.9	8.58	9.51	10.2	10.66	9.3
20	7.02	7.42	8.2	8.98	10.22	11.17	12.71	12.51

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.71	143°	3.97
8	40.1°	4.49	146.5°	5.02
10	38.6°	4.72	152°	5.78
12	38.2°	4.81	149°	6.35
14	37.9°	4.89	146°	7.1
16	37.9°	4.94	143.5°	8.06
20	39°	4.9	145.2°	10.84

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