Tir Na nOg — ORC Rating

GPH

811.7

OSN

786.1

LOA

6.6 m

Displacement

1182 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.4919

Medium

0.6749

High

0.7994

Triple Offshore

Low

0.6366

Medium

0.836

High

0.9623

Boat Specifications

Dimensions

Length overall: 6.6 m
Beam: 2.5 m
Draft: 1.25 m
Displacement: 1182 kg
Crew weight: 328 kg
Wetted surface: 11.3 m²

Sails

Mainsail: 12.52 m²
Genoa: 9.23 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 29.69 m²

Design

Type: Waarschip660x1.25
Builder: 't Waar
Designer: K Kremer
Year built: 1984
Stability index: 106.8

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.

6,44.4,3.387113,52,3.72,60,3.94,75,4.16,90,4.49,110,4.53,120,4.39,135,4,146.6,3.593469,150,3.46
8,43.2,4.019377,52,4.46,60,4.7,75,5.07,90,5.37,110,5.4,120,5.3,135,4.95,146.9,4.476443,150,4.34
10,42.6,4.510275,52,5.06,60,5.25,75,5.54,90,5.8,110,5.83,120,5.75,135,5.54,150,5.03,153.8,4.870392
12,41.8,4.923029,52,5.39,60,5.53,75,5.79,90,6.14,110,6.24,120,6.15,135,5.91,150,5.55,166.7,5.148077
14,39.9,5.135791,52,5.59,60,5.73,75,5.91,90,6.41,110,6.63,120,6.55,135,6.29,150,5.87,178.4,5.482137
16,39,5.249979,52,5.73,60,5.9,75,6.11,90,6.55,110,7.03,120,6.96,135,6.67,150,6.21,179,5.790882
20,40,5.273845,52,5.78,60,6.04,75,6.47,90,6.74,110,7.63,120,7.97,135,7.5,150,6.9,179,6.430979

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.72	3.94	4.16	4.49	4.53	4.39	4	3.46
8	4.46	4.7	5.07	5.37	5.4	5.3	4.95	4.34
10	5.06	5.25	5.54	5.8	5.83	5.75	5.54	5.03
12	5.39	5.53	5.79	6.14	6.24	6.15	5.91	5.55
14	5.59	5.73	5.91	6.41	6.63	6.55	6.29	5.87
16	5.73	5.9	6.11	6.55	7.03	6.96	6.67	6.21
20	5.78	6.04	6.47	6.74	7.63	7.97	7.5	6.9

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.4°	2.42	146.6°	3
8	43.2°	2.93	146.9°	3.75
10	42.6°	3.32	153.8°	4.37
12	41.8°	3.67	166.7°	5.01
14	39.9°	3.94	178.4°	5.48
16	39°	4.08	179°	5.79
20	40°	4.04	179°	6.43

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