NEARCHOS — ORC Rating

GPH

770.2

OSN

745.8

LOA

8.85 m

Displacement

3441 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5859

Medium

0.8038

High

0.9419

Triple Offshore

Low

0.754

Medium

0.994

High

1.125

Boat Specifications

Dimensions

Length overall: 8.85 m
Beam: 2.97 m
Draft: 1.61 m
Displacement: 3441 kg
Crew weight: 400 kg
Wetted surface: 18.33 m²

Sails

Mainsail: 16.89 m²
Genoa: 25.74 m²
Spinnaker: 51.58 m²
Asymmetric spinnaker: 0 m²

Design

Type: YCA 29
Year built: 1979

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.

6,44.3,3.716679,52,4.11,60,4.36,75,4.55,90,4.5,110,4.56,120,4.43,135,4.04,148.3,3.561308,150,3.5
8,42.3,4.326481,52,4.86,60,5.15,75,5.39,90,5.41,110,5.55,120,5.42,135,4.98,150,4.41,152.3,4.314465
10,42.4,4.888583,52,5.46,60,5.71,75,5.89,90,6.02,110,6.11,120,6.05,135,5.77,150,5.19,153.3,5.059486
12,42,5.315249,52,5.83,60,6.01,75,6.15,90,6.32,110,6.43,120,6.38,135,6.19,150,5.85,160.4,5.487988
14,41.1,5.520438,52,6.02,60,6.18,75,6.34,90,6.49,110,6.73,120,6.68,135,6.49,150,6.21,180,5.75
16,40.8,5.601093,52,6.11,60,6.29,75,6.5,90,6.59,110,7,120,7,135,6.79,150,6.48,180,6.13
20,41.3,5.63051,52,6.14,60,6.35,75,6.71,90,6.95,110,7.31,120,7.51,135,7.39,150,7.05,180,6.66

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.11	4.36	4.55	4.5	4.56	4.43	4.04	3.5
8	4.86	5.15	5.39	5.41	5.55	5.42	4.98	4.41
10	5.46	5.71	5.89	6.02	6.11	6.05	5.77	5.19
12	5.83	6.01	6.15	6.32	6.43	6.38	6.19	5.85
14	6.02	6.18	6.34	6.49	6.73	6.68	6.49	6.21
16	6.11	6.29	6.5	6.59	7	7	6.79	6.48
20	6.14	6.35	6.71	6.95	7.31	7.51	7.39	7.05

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.3°	2.66	148.3°	3.03
8	42.3°	3.2	152.3°	3.82
10	42.4°	3.61	153.3°	4.52
12	42°	3.95	160.4°	5.17
14	41.1°	4.16	180°	5.75
16	40.8°	4.24	180°	6.13
20	41.3°	4.23	180°	6.66

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