TANGO — ORC Rating | RegattaPages

GPH

733.4

OSN

711.4

LOA

8.45 m

Displacement

2981 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5532

Medium

0.7551

High

0.8767

Triple Offshore

Low

0.7113

Medium

0.9244

High

1.0395

Boat Specifications

Dimensions

Length overall: 8.45 m
Beam: 2.99 m
Draft: 1.68 m
Displacement: 2981 kg
Crew weight: 435 kg
Wetted surface: 17.26 m²

Sails

Mainsail: 15.68 m²
Genoa: 23.52 m²
Spinnaker: 64.47 m²
Asymmetric spinnaker: 0 m²

Design

Type: First 28
Builder: Benetau
Year built: 1980

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.

6,43.3,3.902317,52,4.34,60,4.57,75,4.73,90,4.77,110,4.93,120,4.75,135,4.32,148,3.796954,150,3.72
8,42,4.575151,52,5.12,60,5.39,75,5.57,90,5.74,110,5.9,120,5.81,135,5.34,150,4.65,151.5,4.58571
10,41.2,5.076986,52,5.68,60,5.88,75,6.03,90,6.22,110,6.35,120,6.31,135,6.1,150,5.54,150.2,5.531449
12,40.1,5.451541,52,5.99,60,6.13,75,6.27,90,6.47,110,6.68,120,6.65,135,6.45,150,6.14,162,5.751498
14,39,5.636007,52,6.17,60,6.31,75,6.46,90,6.59,110,7,120,7.01,135,6.79,150,6.46,180,6.01
16,39,5.738948,52,6.27,60,6.44,75,6.64,90,6.72,110,7.24,120,7.34,135,7.15,150,6.76,180,6.35
20,39.4,5.758777,52,6.3,60,6.52,75,6.9,90,7.1,110,7.51,120,7.81,135,7.81,150,7.41,180,6.93

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.34	4.57	4.73	4.77	4.93	4.75	4.32	3.72
8	5.12	5.39	5.57	5.74	5.9	5.81	5.34	4.65
10	5.68	5.88	6.03	6.22	6.35	6.31	6.1	5.54
12	5.99	6.13	6.27	6.47	6.68	6.65	6.45	6.14
14	6.17	6.31	6.46	6.59	7	7.01	6.79	6.46
16	6.27	6.44	6.64	6.72	7.24	7.34	7.15	6.76
20	6.3	6.52	6.9	7.1	7.51	7.81	7.81	7.41

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.3°	2.84	148°	3.22
8	42°	3.4	151.5°	4.03
10	41.2°	3.82	150.2°	4.8
12	40.1°	4.17	162°	5.47
14	39°	4.38	180°	6.01
16	39°	4.46	180°	6.35
20	39.4°	4.45	180°	6.93

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