Long Gong — ORC Rating

GPH

745.1

OSN

721.6

LOA

7.62 m

Displacement

1625 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5429

Medium

0.7463

High

0.861

Triple Offshore

Low

0.7

Medium

0.9103

High

1.0234

Boat Specifications

Dimensions

Length overall: 7.62 m
Beam: 2.71 m
Draft: 1.56 m
Displacement: 1625 kg
Crew weight: 340 kg
Wetted surface: 12.28 m²

Sails

Mainsail: 19.88 m²
Genoa: 11.81 m²
Spinnaker: 31.56 m²
Asymmetric spinnaker: 0 m²

Design

Type: POLARIS
Year built: 1984
Stability index: 108.9

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.

6,42.4,3.886491,52,4.34,60,4.57,75,4.74,90,4.85,110,4.8,120,4.61,135,4.12,148.7,3.569511,150,3.52
8,42,4.61552,52,5.18,60,5.41,75,5.56,90,5.73,110,5.72,120,5.57,135,5.05,150,4.43,153.8,4.290849
10,40.6,5.136504,52,5.66,60,5.81,75,5.93,90,6.15,110,6.16,120,6.06,135,5.79,150,5.27,153.8,5.104438
12,38.7,5.420086,52,5.92,60,6.05,75,6.19,90,6.47,110,6.54,120,6.44,135,6.17,150,5.86,164.6,5.466264
14,37.8,5.517905,52,6.07,60,6.24,75,6.43,90,6.7,110,6.9,120,6.81,135,6.54,150,6.21,178.4,5.792258
16,37.6,5.566146,52,6.15,60,6.36,75,6.64,90,6.82,110,7.22,120,7.16,135,6.9,150,6.56,179,6.140935
20,38.4,5.60168,52,6.19,60,6.44,75,6.86,90,7.18,110,7.66,120,7.89,135,7.63,150,7.22,179,6.791034

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.34	4.57	4.74	4.85	4.8	4.61	4.12	3.52
8	5.18	5.41	5.56	5.73	5.72	5.57	5.05	4.43
10	5.66	5.81	5.93	6.15	6.16	6.06	5.79	5.27
12	5.92	6.05	6.19	6.47	6.54	6.44	6.17	5.86
14	6.07	6.24	6.43	6.7	6.9	6.81	6.54	6.21
16	6.15	6.36	6.64	6.82	7.22	7.16	6.9	6.56
20	6.19	6.44	6.86	7.18	7.66	7.89	7.63	7.22

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	2.87	148.7°	3.05
8	42°	3.43	153.8°	3.85
10	40.6°	3.9	153.8°	4.58
12	38.7°	4.23	164.6°	5.27
14	37.8°	4.36	178.4°	5.79
16	37.6°	4.41	179°	6.14
20	38.4°	4.39	179°	6.79

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