KOURSAROS — ORC Rating

GPH

793.1

OSN

764.7

LOA

8.22 m

Displacement

2800 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.496

Medium

0.6969

High

0.8142

Triple Offshore

Low

0.6418

Medium

0.8643

High

0.9756

Boat Specifications

Dimensions

Length overall: 8.22 m
Beam: 2.65 m
Draft: 1.55 m
Displacement: 2800 kg
Crew weight: 420 kg
Wetted surface: 16.31 m²

Sails

Mainsail: 20.29 m²
Genoa: 17.02 m²
Spinnaker: 34 m²
Asymmetric spinnaker: 0 m²

Design

Type: SUNWIND 27
Builder: OY NYKRA FINLAND
Designer: TORD SUNDEN
Year built: 1982
Stability index: 131.2

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.

6,44.4,3.569066,52,3.94,60,4.19,75,4.35,90,4.41,110,4.4,120,4.23,135,3.75,149.6,3.269513,150,3.25
8,42.6,4.238571,52,4.75,60,5.02,75,5.21,90,5.4,110,5.39,120,5.2,135,4.69,150,4.18,153.8,4.045657
10,42,4.776996,52,5.37,60,5.62,75,5.79,90,5.99,110,6.01,120,5.9,135,5.53,150,4.97,157.4,4.700988
12,42.1,5.242758,52,5.75,60,5.93,75,6.08,90,6.29,110,6.34,120,6.25,135,6.03,150,5.68,161,5.309256
14,41.4,5.3992,52,5.92,60,6.09,75,6.27,90,6.47,110,6.63,120,6.54,135,6.34,150,6.09,175.4,5.638161
16,41.2,5.449121,52,5.97,60,6.16,75,6.41,90,6.57,110,6.92,120,6.85,135,6.63,150,6.37,179,6.030919
20,42.3,5.489223,52,5.98,60,6.2,75,6.54,90,6.86,110,7.29,120,7.43,135,7.26,150,6.95,179,6.571001

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.94	4.19	4.35	4.41	4.4	4.23	3.75	3.25
8	4.75	5.02	5.21	5.4	5.39	5.2	4.69	4.18
10	5.37	5.62	5.79	5.99	6.01	5.9	5.53	4.97
12	5.75	5.93	6.08	6.29	6.34	6.25	6.03	5.68
14	5.92	6.09	6.27	6.47	6.63	6.54	6.34	6.09
16	5.97	6.16	6.41	6.57	6.92	6.85	6.63	6.37
20	5.98	6.2	6.54	6.86	7.29	7.43	7.26	6.95

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.4°	2.55	149.6°	2.82
8	42.6°	3.12	153.8°	3.63
10	42°	3.55	157.4°	4.34
12	42.1°	3.89	161°	5.02
14	41.4°	4.05	175.4°	5.62
16	41.2°	4.1	179°	6.03
20	42.3°	4.06	179°	6.57

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