PRESTO — ORC Rating | RegattaPages

GPH

646.3

OSN

628.7

LOA

8.3 m

Displacement

1857 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6412

Medium

0.8424

High

0.9552

Triple Offshore

Low

0.8222

Medium

1.0409

High

1.1732

Boat Specifications

Dimensions

Length overall: 8.3 m
Beam: 2.66 m
Draft: 1.72 m
Displacement: 1857 kg
Crew weight: 441 kg
Wetted surface: 17.1 m²

Sails

Mainsail: 26.29 m²
Genoa: 18.1 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 78.91 m²

Design

Type: RS 280
Builder: UAB Plastolitas
Designer: UAB Plastolitas
Year built: 1998
Stability index: 109

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.

6,42.9,4.491205,52,5.03,60,5.3,75,5.48,90,5.62,110,5.73,120,5.58,135,5.02,144.2,4.54958,150,4.26
8,41.1,5.308113,52,5.91,60,6.13,75,6.28,90,6.48,110,6.64,120,6.57,135,6.16,147.8,5.483382,150,5.36
10,39.3,5.789309,52,6.42,60,6.59,75,6.73,90,6.8,110,7.24,120,7.21,135,6.87,149.2,6.275031,150,6.22
12,38.4,5.946203,52,6.63,60,6.85,75,7.11,90,7.13,110,7.65,120,7.84,135,7.5,149.6,6.828877,150,6.8
14,38.2,6.018908,52,6.72,60,6.98,75,7.39,90,7.56,110,7.98,120,8.38,135,8.18,147.1,7.503396,150,7.28
16,39,6.112108,52,6.78,60,7.06,75,7.55,90,7.93,110,8.29,120,8.8,135,9.01,144.6,8.34225,150,7.86
20,40,6.161522,52,6.82,60,7.14,75,7.73,90,8.36,110,8.89,120,9.67,135,11.42,140.3,11.34651,150,10.08

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.03	5.3	5.48	5.62	5.73	5.58	5.02	4.26
8	5.91	6.13	6.28	6.48	6.64	6.57	6.16	5.36
10	6.42	6.59	6.73	6.8	7.24	7.21	6.87	6.22
12	6.63	6.85	7.11	7.13	7.65	7.84	7.5	6.8
14	6.72	6.98	7.39	7.56	7.98	8.38	8.18	7.28
16	6.78	7.06	7.55	7.93	8.29	8.8	9.01	7.86
20	6.82	7.14	7.73	8.36	8.89	9.67	11.42	10.08

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	3.29	144.2°	3.69
8	41.1°	4	147.8°	4.64
10	39.3°	4.48	149.2°	5.39
12	38.4°	4.66	149.6°	5.89
14	38.2°	4.73	147.1°	6.3
16	39°	4.75	144.6°	6.8
20	40°	4.72	140.3°	8.73

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