TATANKA — ORC Rating | RegattaPages

GPH

604

OSN

587.2

LOA

8.083 m

Displacement

970 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6932

Medium

0.8965

High

1.0473

Triple Offshore

Low

0.8819

Medium

1.107

High

1.2818

Boat Specifications

Dimensions

Length overall: 8.083 m
Beam: 2.69 m
Draft: 1.57 m
Displacement: 970 kg
Crew weight: 420 kg
Wetted surface: 12.73 m²

Sails

Mainsail: 22.53 m²
Genoa: 16.11 m²
Spinnaker: 44.86 m²
Asymmetric spinnaker: 64.46 m²

Design

Type: Dolphin 81
Builder: Maxi Dolphin
Designer: Santarelli
Year built: 1992
Stability index: 103.9

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.

6,42.4,5.010459,52,5.59,60,5.84,75,5.98,90,5.89,110,6,120,5.87,135,5.28,142.6,4.871512,150,4.46
8,39.4,5.745836,52,6.37,60,6.53,75,6.67,90,6.65,110,6.89,120,6.85,135,6.42,147.8,5.696099,150,5.57
10,37.3,6.046713,52,6.73,60,6.94,75,7.16,90,7.2,110,7.57,120,7.62,135,7.25,150,6.43,153.2,6.2515
12,36.6,6.153329,52,6.91,60,7.18,75,7.58,90,7.75,110,8.07,120,8.4,135,8.15,150,7.22,152.3,7.09289
14,36.4,6.224424,52,7.03,60,7.34,75,7.86,90,8.3,110,8.56,120,9.07,135,9.19,150,7.99,151.4,7.881702
16,36.4,6.27412,52,7.12,60,7.45,75,8.08,90,8.74,110,9.02,120,9.69,135,10.5,145.1,9.461662,150,8.96
20,37,6.298242,52,7.19,60,7.59,75,8.37,90,9.31,110,10.33,120,11.18,135,13,145.1,13.046364,150,12.36

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.59	5.84	5.98	5.89	6	5.87	5.28	4.46
8	6.37	6.53	6.67	6.65	6.89	6.85	6.42	5.57
10	6.73	6.94	7.16	7.2	7.57	7.62	7.25	6.43
12	6.91	7.18	7.58	7.75	8.07	8.4	8.15	7.22
14	7.03	7.34	7.86	8.3	8.56	9.07	9.19	7.99
16	7.12	7.45	8.08	8.74	9.02	9.69	10.5	8.96
20	7.19	7.59	8.37	9.31	10.33	11.18	13	12.36

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.7	142.6°	3.87
8	39.4°	4.44	147.8°	4.82
10	37.3°	4.81	153.2°	5.58
12	36.6°	4.94	152.3°	6.28
14	36.4°	5.01	151.4°	6.92
16	36.4°	5.05	145.1°	7.76
20	37°	5.03	145.1°	10.7

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