Sirocco — ORC Rating | RegattaPages

GPH

532.4

OSN

525.2

LOA

18.55 m

Displacement

9151 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7988

Medium

1.0132

High

1.1516

Triple Offshore

Low

1.0315

Medium

1.2456

High

1.3725

Boat Specifications

Dimensions

Length overall: 18.55 m
Beam: 2.91 m
Draft: 1.84 m
Displacement: 9151 kg
Crew weight: 900 kg
Wetted surface: 38.85 m²

Sails

Mainsail: 73.38 m²
Genoa: 45.61 m²
Spinnaker: 265.86 m²
Asymmetric spinnaker: 234.45 m²

Design

Type: 75 Skerry Cruiser
Builder: Balatonfüred SY
Designer: Jenő Benacsek
Year built: 1943

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.

6,44.4,5.948443,52,6.57,60,7.04,75,7.48,90,7.48,110,6.92,120,6.78,135,6.26,143.1,5.752267,150,5.32
8,42.5,6.483313,52,7.24,60,7.65,75,8.05,90,8.21,110,7.91,120,7.96,135,7.75,146,6.996064,150,6.69
10,41.3,6.775247,52,7.6,60,7.94,75,8.32,90,8.54,110,8.48,120,8.5,135,8.56,148.5,7.975228,150,7.85
12,40.8,7.014577,52,7.82,60,8.14,75,8.5,90,8.74,110,8.84,120,8.86,135,9.1,150,8.7,154.1,8.459712
14,40.3,7.159075,52,7.98,60,8.29,75,8.65,90,8.94,110,9.12,120,9.16,135,9.59,150,9.29,159.7,8.764364
16,40.1,7.294867,52,8.1,60,8.4,75,8.78,90,9.1,110,9.37,120,9.44,135,10,150,9.89,160.4,9.277566
20,40,7.46693,52,8.26,60,8.55,75,8.96,90,9.38,110,9.73,120,9.96,135,10.84,150,11.46,153.8,11.122772
24,41,7.473073,52,8.28,60,8.61,75,9.07,90,9.6,110,10.19,120,10.44,135,11.87,150,14.12,152.7,14.20184

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.57	7.04	7.48	7.48	6.92	6.78	6.26	5.32
8	7.24	7.65	8.05	8.21	7.91	7.96	7.75	6.69
10	7.6	7.94	8.32	8.54	8.48	8.5	8.56	7.85
12	7.82	8.14	8.5	8.74	8.84	8.86	9.1	8.7
14	7.98	8.29	8.65	8.94	9.12	9.16	9.59	9.29
16	8.1	8.4	8.78	9.1	9.37	9.44	10	9.89
20	8.26	8.55	8.96	9.38	9.73	9.96	10.84	11.46
24	8.28	8.61	9.07	9.6	10.19	10.44	11.87	14.12

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.4°	4.25	143.1°	4.6
8	42.5°	4.78	146°	5.8
10	41.3°	5.09	148.5°	6.8
12	40.8°	5.31	154.1°	7.61
14	40.3°	5.46	159.7°	8.22
16	40.1°	5.58	160.4°	8.74
20	40°	5.72	153.8°	9.98
24	41°	5.64	152.7°	12.62

Loading polar chart…