CHINATOWN — ORC Rating

GPH

715.6

OSN

698.6

LOA

7.61 m

Displacement

1333 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5995

Medium

0.7751

High

0.858

Triple Offshore

Low

0.7617

Medium

0.9314

High

1.0234

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: 11.17 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.

6,41.5,4.499598,52,5.03,60,5.22,75,5.32,90,5.25,110,5.03,120,4.85,135,4.34,146,3.835773,150,3.67
8,39.1,5.089902,52,5.61,60,5.74,75,5.83,90,5.81,110,5.78,120,5.66,135,5.25,150,4.65,151.8,4.572772
10,37.4,5.337263,52,5.86,60,5.98,75,6.1,90,6.15,110,6.2,120,6.1,135,5.82,150,5.41,157.8,5.130307
12,37.1,5.416358,52,5.97,60,6.11,75,6.3,90,6.4,110,6.55,120,6.46,135,6.2,150,5.89,173.2,5.408043
14,37.3,5.468441,52,6.02,60,6.18,75,6.44,90,6.62,110,6.9,120,6.83,135,6.55,150,6.24,179,5.84089
16,37.6,5.503038,52,6.06,60,6.24,75,6.54,90,6.84,110,7.29,120,7.26,135,6.94,150,6.58,179.4,6.180339
20,38.5,5.532782,52,6.1,60,6.31,75,6.71,90,7.18,110,7.97,120,8.6,135,8.14,150,7.39,179.7,6.840094
24,41.2,5.542155,52,6.06,60,6.31,75,6.79,90,7.44,110,8.66,120,10,135,10.73,143.1,9.966429,150,9.2

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.03	5.22	5.32	5.25	5.03	4.85	4.34	3.67
8	5.61	5.74	5.83	5.81	5.78	5.66	5.25	4.65
10	5.86	5.98	6.1	6.15	6.2	6.1	5.82	5.41
12	5.97	6.11	6.3	6.4	6.55	6.46	6.2	5.89
14	6.02	6.18	6.44	6.62	6.9	6.83	6.55	6.24
16	6.06	6.24	6.54	6.84	7.29	7.26	6.94	6.58
20	6.1	6.31	6.71	7.18	7.97	8.6	8.14	7.39
24	6.06	6.31	6.79	7.44	8.66	10	10.73	9.2

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.5°	3.37	146°	3.18
8	39.1°	3.95	151.8°	4.03
10	37.4°	4.24	157.8°	4.75
12	37.1°	4.32	173.2°	5.37
14	37.3°	4.35	179°	5.84
16	37.6°	4.36	179.4°	6.18
20	38.5°	4.33	179.7°	6.84
24	41.2°	4.17	143.1°	7.97

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