PRESTO — ORC Rating | RegattaPages

GPH

643.8

OSN

627.3

LOA

8.3 m

Displacement

1857 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6389

Medium

0.8449

High

0.9589

Triple Offshore

Low

0.8246

Medium

1.0446

High

1.1819

Boat Specifications

Dimensions

Length overall: 8.3 m
Beam: 2.66 m
Draft: 1.72 m
Displacement: 1857 kg
Crew weight: 485 kg
Wetted surface: 17.38 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

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.

6,42.8,4.456681,52,4.99,60,5.32,75,5.57,90,5.73,110,5.84,120,5.69,135,5.03,145,4.516866,150,4.27
8,41.6,5.30892,52,5.94,60,6.18,75,6.36,90,6.58,110,6.69,120,6.61,135,6.21,148,5.471388,150,5.36
10,39.8,5.844197,52,6.44,60,6.6,75,6.75,90,6.86,110,7.28,120,7.22,135,6.85,149.2,6.275031,150,6.23
12,38.2,5.993458,52,6.64,60,6.85,75,7.12,90,7.18,110,7.74,120,7.93,135,7.47,150,6.75,151,6.700055
14,38.4,6.086564,52,6.71,60,6.97,75,7.44,90,7.64,110,8.08,120,8.54,135,8.21,150,7.18,176,6.335433
16,38.6,6.116283,52,6.75,60,7.03,75,7.61,90,8.09,110,8.48,120,9.01,135,9.12,144,8.392902,150,7.84
20,39.4,6.198773,52,6.83,60,7.14,75,7.73,90,8.56,110,9.29,120,10.11,135,11.67,138.8,11.443154,150,9.94

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.99	5.32	5.57	5.73	5.84	5.69	5.03	4.27
8	5.94	6.18	6.36	6.58	6.69	6.61	6.21	5.36
10	6.44	6.6	6.75	6.86	7.28	7.22	6.85	6.23
12	6.64	6.85	7.12	7.18	7.74	7.93	7.47	6.75
14	6.71	6.97	7.44	7.64	8.08	8.54	8.21	7.18
16	6.75	7.03	7.61	8.09	8.48	9.01	9.12	7.84
20	6.83	7.14	7.73	8.56	9.29	10.11	11.67	9.94

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.27	145°	3.7
8	41.6°	3.97	148°	4.64
10	39.8°	4.49	149.2°	5.39
12	38.2°	4.71	151°	5.86
14	38.4°	4.77	176°	6.32
16	38.6°	4.78	144°	6.79
20	39.4°	4.79	138.8°	8.61

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