CHINATOWN — ORC Rating

GPH

705.8

OSN

689.1

LOA

7.61 m

Displacement

1333 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6699

Medium

0.8792

High

0.9741

Triple Offshore

Low

0.8567

Medium

1.0689

High

1.179

Boat Specifications

Dimensions

Length overall: 7.61 m
Beam: 2.64 m
Draft: 1.51 m
Displacement: 1333 kg
Crew weight: 314 kg
Wetted surface: 11.13 m²

Sails

Mainsail: 20.48 m²
Genoa: 15.62 m²
Spinnaker: 27.93 m²
Asymmetric spinnaker: 0 m²

Design

Type: PROTO 1/4 TON 1981
Builder: FONTAINE PAJOT
Designer: JOUBERT - NIVELT
Year built: 1981

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.

6,41.7,4.366238,52,4.91,60,5.15,75,5.33,90,5.3,110,5.08,120,4.89,135,4.39,148,3.808746,150,3.74
8,41,5.1278,52,5.65,60,5.8,75,5.91,90,5.92,110,5.9,120,5.78,135,5.35,150,4.7,152.1,4.605293
10,39,5.455861,52,5.97,60,6.11,75,6.24,90,6.34,110,6.34,120,6.23,135,5.95,150,5.51,156.4,5.259926
12,38.6,5.553277,52,6.1,60,6.29,75,6.53,90,6.69,110,6.79,120,6.66,135,6.34,150,6.01,180,5.49
14,38.8,5.594492,52,6.16,60,6.39,75,6.75,90,6.94,110,7.21,120,7.07,135,6.76,150,6.39,180,5.98
16,39.1,5.605335,52,6.18,60,6.44,75,6.86,90,7.19,110,7.62,120,7.53,135,7.16,150,6.77,180,6.34
20,40.5,5.641723,52,6.2,60,6.45,75,6.94,90,7.49,110,8.25,120,8.89,135,8.23,150,7.57,180,7.07

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.91	5.15	5.33	5.3	5.08	4.89	4.39	3.74
8	5.65	5.8	5.91	5.92	5.9	5.78	5.35	4.7
10	5.97	6.11	6.24	6.34	6.34	6.23	5.95	5.51
12	6.1	6.29	6.53	6.69	6.79	6.66	6.34	6.01
14	6.16	6.39	6.75	6.94	7.21	7.07	6.76	6.39
16	6.18	6.44	6.86	7.19	7.62	7.53	7.16	6.77
20	6.2	6.45	6.94	7.49	8.25	8.89	8.23	7.57

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.7°	3.26	148°	3.23
8	41°	3.87	152.1°	4.07
10	39°	4.24	156.4°	4.82
12	38.6°	4.34	180°	5.49
14	38.8°	4.36	180°	5.98
16	39.1°	4.35	180°	6.34
20	40.5°	4.29	180°	7.07

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