SYLVA — ORC Rating | RegattaPages

GPH

659.2

OSN

639.4

LOA

12.18 m

Displacement

3426 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6079

Medium

0.8304

High

0.9426

Triple Offshore

Low

0.7888

Medium

1.0336

High

1.1458

Boat Specifications

Dimensions

Length overall: 12.18 m
Beam: 2.29 m
Draft: 1.63 m
Displacement: 3426 kg
Crew weight: 350 kg
Wetted surface: 20.32 m²

Sails

Mainsail: 23 m²
Genoa: 19.26 m²
Spinnaker: 71.21 m²
Asymmetric spinnaker: 0 m²

Design

Type: YLVA
Builder: KJOELHEDE
Designer: KJOELHEDE
Year built: 1976
Stability index: 124.6

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.

6,43.6,4.377414,52,4.85,60,5.12,75,5.3,90,5.3,110,5.48,120,5.35,135,4.78,136,4.712655,150,3.91
8,41.8,5.218143,52,5.83,60,6.09,75,6.3,90,6.32,110,6.63,120,6.56,135,6.03,147.1,5.204736,150,5.04
10,40.8,5.706774,52,6.4,60,6.68,75,6.92,90,6.92,110,7.25,120,7.29,135,6.98,147.5,6.296009,150,6.13
12,40.6,5.900394,52,6.63,60,6.93,75,7.24,90,7.33,110,7.56,120,7.72,135,7.57,150,7.01,155,6.763707
14,40.6,6.005758,52,6.74,60,7.05,75,7.41,90,7.6,110,7.78,120,8.05,135,8.06,150,7.56,161.4,7.09034
16,40.8,6.063448,52,6.8,60,7.11,75,7.51,90,7.8,110,7.98,120,8.31,135,8.55,150,8.04,173.6,7.295466
20,41.8,6.116897,52,6.82,60,7.16,75,7.62,90,8.05,110,8.34,120,8.79,135,9.63,150,9.12,175.4,8.186369

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.85	5.12	5.3	5.3	5.48	5.35	4.78	3.91
8	5.83	6.09	6.3	6.32	6.63	6.56	6.03	5.04
10	6.4	6.68	6.92	6.92	7.25	7.29	6.98	6.13
12	6.63	6.93	7.24	7.33	7.56	7.72	7.57	7.01
14	6.74	7.05	7.41	7.6	7.78	8.05	8.06	7.56
16	6.8	7.11	7.51	7.8	7.98	8.31	8.55	8.04
20	6.82	7.16	7.62	8.05	8.34	8.79	9.63	9.12

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	3.17	136°	3.39
8	41.8°	3.89	147.1°	4.37
10	40.8°	4.32	147.5°	5.31
12	40.6°	4.48	155°	6.13
14	40.6°	4.56	161.4°	6.72
16	40.8°	4.59	173.6°	7.25
20	41.8°	4.56	175.4°	8.16

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