NEARCHOS — ORC Rating

GPH

775.5

OSN

749

LOA

8.85 m

Displacement

3440 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.515

Medium

0.711

High

0.8377

Triple Offshore

Low

0.6626

Medium

0.8792

High

0.9979

Boat Specifications

Dimensions

Length overall: 8.85 m
Beam: 2.97 m
Draft: 1.61 m
Displacement: 3440 kg
Crew weight: 400 kg
Wetted surface: 18.25 m²

Sails

Mainsail: 16.89 m²
Genoa: 25.74 m²
Spinnaker: 51.83 m²
Asymmetric spinnaker: 0 m²

Design

Type: YCA 29
Designer: J.EVERITT
Year built: 1979
Stability index: 119.2

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.

6,44.4,3.653044,52,4.04,60,4.3,75,4.48,90,4.43,110,4.52,120,4.39,135,4,148.4,3.522256,150,3.47
8,42.6,4.292912,52,4.81,60,5.09,75,5.32,90,5.38,110,5.52,120,5.38,135,4.94,150,4.39,152.3,4.303171
10,42.6,4.849904,52,5.42,60,5.67,75,5.85,90,6,110,6.1,120,6.03,135,5.75,150,5.19,153.8,5.026423
12,42.3,5.31346,52,5.8,60,5.98,75,6.13,90,6.31,110,6.42,120,6.37,135,6.18,150,5.85,159.2,5.530443
14,41.2,5.515574,52,6.01,60,6.17,75,6.32,90,6.48,110,6.71,120,6.67,135,6.48,150,6.21,173.6,5.755871
16,40.6,5.597472,52,6.11,60,6.29,75,6.49,90,6.58,110,6.99,120,6.98,135,6.79,150,6.49,179,6.110931
20,40.8,5.640724,52,6.16,60,6.36,75,6.71,90,6.94,110,7.3,120,7.5,135,7.39,150,7.07,179,6.641011

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.04	4.3	4.48	4.43	4.52	4.39	4	3.47
8	4.81	5.09	5.32	5.38	5.52	5.38	4.94	4.39
10	5.42	5.67	5.85	6	6.1	6.03	5.75	5.19
12	5.8	5.98	6.13	6.31	6.42	6.37	6.18	5.85
14	6.01	6.17	6.32	6.48	6.71	6.67	6.48	6.21
16	6.11	6.29	6.49	6.58	6.99	6.98	6.79	6.49
20	6.16	6.36	6.71	6.94	7.3	7.5	7.39	7.07

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.4°	2.61	148.4°	3
8	42.6°	3.16	152.3°	3.81
10	42.6°	3.57	153.8°	4.51
12	42.3°	3.93	159.2°	5.17
14	41.2°	4.15	173.6°	5.72
16	40.6°	4.25	179°	6.11
20	40.8°	4.27	179°	6.64

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