THIASSI — ORC Rating | RegattaPages

GPH

658

OSN

638.1

LOA

9.925 m

Displacement

4070 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6224

Medium

0.8472

High

0.9714

Triple Offshore

Low

0.8019

Medium

1.0275

High

1.1432

Boat Specifications

Dimensions

Length overall: 9.925 m
Beam: 3.31 m
Draft: 1.74 m
Displacement: 4070 kg
Crew weight: 500 kg
Wetted surface: 21.42 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
Stability index: 128.6

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.

6,43.2,4.650406,52,5.17,60,5.43,75,5.59,90,5.46,110,5.38,120,5.19,135,4.65,145.1,4.084609,150,3.87
8,41.2,5.449121,52,6.04,60,6.24,75,6.36,90,6.32,110,6.39,120,6.24,135,5.73,150,4.95,150.2,4.932208
10,39.3,5.905612,52,6.49,60,6.63,75,6.74,90,6.8,110,6.88,120,6.8,135,6.5,150,5.88,152.3,5.76015
12,37.6,6.121499,52,6.72,60,6.85,75,6.98,90,7.09,110,7.22,120,7.17,135,6.93,150,6.55,161,6.155352
14,37.2,6.239565,52,6.85,60,7,75,7.18,90,7.29,110,7.53,120,7.5,135,7.27,150,6.95,175.4,6.420682
16,37,6.310764,52,6.93,60,7.1,75,7.33,90,7.44,110,7.83,120,7.83,135,7.62,150,7.27,179,6.821039
20,37,6.360849,52,7,60,7.2,75,7.54,90,7.81,110,8.39,120,8.65,135,8.43,150,7.95,179,7.441133

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.17	5.43	5.59	5.46	5.38	5.19	4.65	3.87
8	6.04	6.24	6.36	6.32	6.39	6.24	5.73	4.95
10	6.49	6.63	6.74	6.8	6.88	6.8	6.5	5.88
12	6.72	6.85	6.98	7.09	7.22	7.17	6.93	6.55
14	6.85	7	7.18	7.29	7.53	7.5	7.27	6.95
16	6.93	7.1	7.33	7.44	7.83	7.83	7.62	7.27
20	7	7.2	7.54	7.81	8.39	8.65	8.43	7.95

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	3.39	145.1°	3.35
8	41.2°	4.1	150.2°	4.28
10	39.3°	4.57	152.3°	5.1
12	37.6°	4.85	161°	5.82
14	37.2°	4.97	175.4°	6.4
16	37°	5.04	179°	6.82
20	37°	5.08	179°	7.44

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