CHINATOWN — ORC Rating

GPH

714.3

OSN

697.4

LOA

7.61 m

Displacement

1333 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6015

Medium

0.7759

High

0.8584

Triple Offshore

Low

0.7637

Medium

0.9325

High

1.0254

Boat Specifications

Dimensions

Length overall: 7.61 m
Beam: 2.64 m
Draft: 1.51 m
Displacement: 1333 kg
Crew weight: 304 kg
Wetted surface: 11.06 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
Stability index: 103.5

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.

6,41.2,4.505493,52,5.04,60,5.24,75,5.34,90,5.26,110,5.04,120,4.86,135,4.35,146.6,3.821055,150,3.68
8,39.1,5.102788,52,5.62,60,5.75,75,5.84,90,5.82,110,5.79,120,5.66,135,5.26,150,4.66,152.3,4.562942
10,37.2,5.323089,52,5.86,60,5.99,75,6.11,90,6.16,110,6.21,120,6.11,135,5.83,150,5.42,158.6,5.123216
12,37,5.409226,52,5.97,60,6.12,75,6.31,90,6.41,110,6.57,120,6.48,135,6.21,150,5.9,173.6,5.423802
14,37.5,5.483055,52,6.03,60,6.19,75,6.46,90,6.64,110,6.93,120,6.85,135,6.57,150,6.25,179,5.850891
16,37.6,5.503038,52,6.06,60,6.25,75,6.56,90,6.86,110,7.32,120,7.3,135,6.97,150,6.6,179,6.200944
20,38.8,5.530335,52,6.09,60,6.3,75,6.7,90,7.19,110,8.04,120,8.71,135,8.25,150,7.44,179.3,6.870513

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.04	5.24	5.34	5.26	5.04	4.86	4.35	3.68
8	5.62	5.75	5.84	5.82	5.79	5.66	5.26	4.66
10	5.86	5.99	6.11	6.16	6.21	6.11	5.83	5.42
12	5.97	6.12	6.31	6.41	6.57	6.48	6.21	5.9
14	6.03	6.19	6.46	6.64	6.93	6.85	6.57	6.25
16	6.06	6.25	6.56	6.86	7.32	7.3	6.97	6.6
20	6.09	6.3	6.7	7.19	8.04	8.71	8.25	7.44

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.2°	3.39	146.6°	3.19
8	39.1°	3.96	152.3°	4.04
10	37.2°	4.24	158.6°	4.77
12	37°	4.32	173.6°	5.39
14	37.5°	4.35	179°	5.85
16	37.6°	4.36	179°	6.2
20	38.8°	4.31	179.3°	6.87

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