THIASSI — ORC Rating | RegattaPages

GPH

662.3

OSN

643.6

LOA

9.925 m

Displacement

4071 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.61

Medium

0.8351

High

0.9614

Triple Offshore

Low

0.7898

Medium

1.023

High

1.1467

Boat Specifications

Dimensions

Length overall: 9.925 m
Beam: 3.31 m
Draft: 1.74 m
Displacement: 4071 kg
Crew weight: 500 kg
Wetted surface: 21.52 m²

Sails

Mainsail: 31.75 m²
Genoa: 27.85 m²
Spinnaker: 65.11 m²
Asymmetric spinnaker: 0 m²

Design

Type: IMPALA 33
Builder: IMPALA
Designer: JENSEN
Year built: 1995

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.

6,42.8,4.429423,52,4.98,60,5.28,75,5.5,90,5.43,110,5.36,120,5.18,135,4.67,146,4.077017,150,3.91
8,42,5.261424,52,5.89,60,6.17,75,6.36,90,6.36,110,6.42,120,6.27,135,5.72,150,4.94,151,4.882122
10,41.2,5.887709,52,6.46,60,6.63,75,6.76,90,6.86,110,6.92,120,6.84,135,6.54,150,5.86,151,5.808239
12,39.4,6.147009,52,6.72,60,6.87,75,7.02,90,7.16,110,7.29,120,7.21,135,6.96,150,6.58,160,6.193515
14,38.8,6.261725,52,6.86,60,7.03,75,7.24,90,7.37,110,7.68,120,7.61,135,7.32,150,6.96,180,6.44
16,38.6,6.321012,52,6.92,60,7.13,75,7.44,90,7.57,110,8.04,120,8.01,135,7.71,150,7.3,180,6.86
20,39.4,6.367007,52,6.95,60,7.19,75,7.66,90,8.02,110,8.48,120,8.8,135,8.55,150,8.04,180,7.52

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.98	5.28	5.5	5.43	5.36	5.18	4.67	3.91
8	5.89	6.17	6.36	6.36	6.42	6.27	5.72	4.94
10	6.46	6.63	6.76	6.86	6.92	6.84	6.54	5.86
12	6.72	6.87	7.02	7.16	7.29	7.21	6.96	6.58
14	6.86	7.03	7.24	7.37	7.68	7.61	7.32	6.96
16	6.92	7.13	7.44	7.57	8.04	8.01	7.71	7.3
20	6.95	7.19	7.66	8.02	8.48	8.8	8.55	8.04

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.25	146°	3.38
8	42°	3.91	151°	4.27
10	41.2°	4.43	151°	5.08
12	39.4°	4.75	160°	5.82
14	38.8°	4.88	180°	6.44
16	38.6°	4.94	180°	6.86
20	39.4°	4.92	180°	7.52

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