Lady Seoul — ORC Rating

GPH

737.2

OSN

715.9

LOA

12.62 m

Displacement

12474 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5296

Medium

0.7296

High

0.8716

Triple Offshore

Low

0.6927

Medium

0.9255

High

1.0638

Boat Specifications

Dimensions

Length overall: 12.62 m
Beam: 3.71 m
Draft: 1.84 m
Displacement: 12474 kg
Crew weight: 614 kg
Wetted surface: 40.66 m²

Sails

Mainsail: 37.35 m²
Genoa: 30.52 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 0 m²

Design

Type: CT 41
Builder: Ta Chiao Shipbuild
Designer: William Garden
Year built: 1972
Stability index: 140.2

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.

6,45.4,3.80259,52,4.19,60,4.47,75,4.88,90,5.05,110,4.87,120,4.62,135,4.13,146,3.703089,150,3.55
8,43.6,4.54312,52,5.03,60,5.3,75,5.76,90,5.97,110,5.83,120,5.59,135,5.15,146.6,4.683488,150,4.52
10,42.4,5.064626,52,5.63,60,5.91,75,6.4,90,6.64,110,6.56,120,6.39,135,5.96,146.6,5.474051,150,5.28
12,41.8,5.473013,52,6.09,60,6.37,75,6.79,90,7.04,110,7.01,120,6.92,135,6.62,146.6,6.144832,150,5.92
14,41.8,5.768127,52,6.42,60,6.68,75,7.01,90,7.28,110,7.31,120,7.26,135,7.05,150,6.47,179.9,5.750009
16,42.6,6.004643,52,6.62,60,6.87,75,7.14,90,7.45,110,7.56,120,7.53,135,7.34,150,6.87,179.8,6.310038
20,43.5,6.189907,52,6.76,60,7.03,75,7.37,90,7.62,110,7.95,120,8,135,7.85,150,7.4,179.9,7.080011

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.19	4.47	4.88	5.05	4.87	4.62	4.13	3.55
8	5.03	5.3	5.76	5.97	5.83	5.59	5.15	4.52
10	5.63	5.91	6.4	6.64	6.56	6.39	5.96	5.28
12	6.09	6.37	6.79	7.04	7.01	6.92	6.62	5.92
14	6.42	6.68	7.01	7.28	7.31	7.26	7.05	6.47
16	6.62	6.87	7.14	7.45	7.56	7.53	7.34	6.87
20	6.76	7.03	7.37	7.62	7.95	8	7.85	7.4

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.4°	2.67	146°	3.07
8	43.6°	3.29	146.6°	3.91
10	42.4°	3.74	146.6°	4.57
12	41.8°	4.08	146.6°	5.13
14	41.8°	4.3	179.9°	5.75
16	42.6°	4.42	179.8°	6.31
20	43.5°	4.49	179.9°	7.08

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