Tshaika — ORC Rating | RegattaPages

GPH

839

OSN

815.2

LOA

7.68 m

Displacement

2030 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.4879

Medium

0.6547

High

0.7372

Triple Offshore

Low

0.6284

Medium

0.8073

High

0.8878

Boat Specifications

Dimensions

Length overall: 7.68 m
Beam: 2.21 m
Draft: 1.15 m
Displacement: 2030 kg
Crew weight: 200 kg
Wetted surface: 14.59 m²

Sails

Mainsail: 19.61 m²
Genoa: 7.9 m²
Spinnaker: 23.94 m²
Asymmetric spinnaker: 0 m²

Design

Type: FOLKBOAT
Builder: SET
Year built: 1941
Stability index: 133

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.

6,43.8,3.519174,52,3.89,60,4.09,75,4.23,90,4.41,110,4.36,120,4.17,135,3.67,150,3.18,150.2,3.180583
8,41.4,4.066065,52,4.55,60,4.76,75,4.94,90,5.18,110,5.17,120,5.02,135,4.55,150,4.06,156.8,3.851446
10,40.8,4.438602,52,4.98,60,5.19,75,5.37,90,5.61,110,5.64,120,5.55,135,5.27,150,4.8,164,4.400467
12,41.4,4.665976,52,5.2,60,5.41,75,5.62,90,5.83,110,5.94,120,5.88,135,5.68,150,5.38,173.6,4.910603
14,41.8,4.775472,52,5.3,60,5.52,75,5.77,90,5.95,110,6.19,120,6.15,135,5.97,150,5.74,179,5.370818
16,42.3,4.853771,52,5.36,60,5.59,75,5.87,90,6.05,110,6.39,120,6.4,135,6.25,150,6.01,179,5.71087
20,43.5,4.921597,52,5.4,60,5.65,75,5.97,90,6.25,110,6.65,120,6.85,135,6.79,150,6.54,179,6.230949

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.89	4.09	4.23	4.41	4.36	4.17	3.67	3.18
8	4.55	4.76	4.94	5.18	5.17	5.02	4.55	4.06
10	4.98	5.19	5.37	5.61	5.64	5.55	5.27	4.8
12	5.2	5.41	5.62	5.83	5.94	5.88	5.68	5.38
14	5.3	5.52	5.77	5.95	6.19	6.15	5.97	5.74
16	5.36	5.59	5.87	6.05	6.39	6.4	6.25	6.01
20	5.4	5.65	5.97	6.25	6.65	6.85	6.79	6.54

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	2.54	150.2°	2.76
8	41.4°	3.05	156.8°	3.54
10	40.8°	3.36	164°	4.23
12	41.4°	3.5	173.6°	4.88
14	41.8°	3.56	179°	5.37
16	42.3°	3.59	179°	5.71
20	43.5°	3.57	179°	6.23

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