CHINATOWN — ORC Rating

GPH

702.3

OSN

685.8

LOA

7.61 m

Displacement

1333 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6728

Medium

0.8845

High

0.984

Triple Offshore

Low

0.8619

Medium

1.0733

High

1.1861

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.

6,41.9,4.420192,52,4.98,60,5.24,75,5.41,90,5.37,110,5.12,120,4.92,135,4.4,147.7,3.833132,150,3.74
8,40.7,5.144207,52,5.67,60,5.83,75,5.94,90,5.96,110,5.92,120,5.8,135,5.37,150,4.71,151.9,4.625185
10,38.5,5.456115,52,5.98,60,6.12,75,6.25,90,6.33,110,6.36,120,6.25,135,5.96,150,5.52,156.2,5.267992
12,37.8,5.555872,52,6.12,60,6.31,75,6.54,90,6.69,110,6.8,120,6.68,135,6.35,150,6.02,180,5.49
14,37.9,5.601431,52,6.18,60,6.41,75,6.76,90,6.94,110,7.21,120,7.08,135,6.77,150,6.39,180,5.98
16,38.1,5.616728,52,6.21,60,6.46,75,6.87,90,7.19,110,7.62,120,7.53,135,7.17,150,6.78,180,6.34
20,39.5,5.676335,52,6.24,60,6.49,75,6.95,90,7.49,110,8.25,120,8.88,135,8.23,150,7.57,180,7.07

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.98	5.24	5.41	5.37	5.12	4.92	4.4	3.74
8	5.67	5.83	5.94	5.96	5.92	5.8	5.37	4.71
10	5.98	6.12	6.25	6.33	6.36	6.25	5.96	5.52
12	6.12	6.31	6.54	6.69	6.8	6.68	6.35	6.02
14	6.18	6.41	6.76	6.94	7.21	7.08	6.77	6.39
16	6.21	6.46	6.87	7.19	7.62	7.53	7.17	6.78
20	6.24	6.49	6.95	7.49	8.25	8.88	8.23	7.57

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.9°	3.29	147.7°	3.24
8	40.7°	3.9	151.9°	4.08
10	38.5°	4.27	156.2°	4.82
12	37.8°	4.39	180°	5.49
14	37.9°	4.42	180°	5.98
16	38.1°	4.42	180°	6.34
20	39.5°	4.38	180°	7.07

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