Firefly — ORC Rating | RegattaPages

GPH

602.9

OSN

586.5

LOA

10.6 m

Displacement

4651 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6826

Medium

0.9181

High

1.0477

Triple Offshore

Low

0.8775

Medium

1.119

High

1.2503

Boat Specifications

Dimensions

Length overall: 10.6 m
Beam: 3.25 m
Draft: 2.17 m
Displacement: 4651 kg
Crew weight: 650 kg
Wetted surface: 24.33 m²

Sails

Mainsail: 42.09 m²
Genoa: 32.16 m²
Spinnaker: 92.19 m²
Asymmetric spinnaker: 0 m²

Design

Type: X-35
Builder: X YACHTS
Designer: N. JEPPESEN
Year built: 2005

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.

6,42,4.911559,52,5.51,60,5.81,75,6.06,90,6,110,5.9,120,5.73,135,5.18,142,4.809579,150,4.38
8,40.9,5.821234,52,6.53,60,6.76,75,6.91,90,6.93,110,6.99,120,6.87,135,6.36,149,5.518176,150,5.46
10,39,6.395195,52,7.06,60,7.21,75,7.32,90,7.4,110,7.52,120,7.43,135,7.12,150,6.44,151,6.391349
12,37.9,6.615265,52,7.28,60,7.45,75,7.63,90,7.66,110,7.99,120,7.92,135,7.57,150,7.12,159,6.748213
14,37.3,6.687841,52,7.36,60,7.56,75,7.88,90,8,110,8.35,120,8.44,135,8.05,150,7.55,180,6.92
16,37.1,6.732834,52,7.4,60,7.63,75,8.03,90,8.33,110,8.61,120,8.95,135,8.56,150,7.99,180,7.38
20,36.8,6.818766,52,7.52,60,7.74,75,8.16,90,8.75,110,9.08,120,9.6,135,9.87,150,8.97,180,8.21

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.51	5.81	6.06	6	5.9	5.73	5.18	4.38
8	6.53	6.76	6.91	6.93	6.99	6.87	6.36	5.46
10	7.06	7.21	7.32	7.4	7.52	7.43	7.12	6.44
12	7.28	7.45	7.63	7.66	7.99	7.92	7.57	7.12
14	7.36	7.56	7.88	8	8.35	8.44	8.05	7.55
16	7.4	7.63	8.03	8.33	8.61	8.95	8.56	7.99
20	7.52	7.74	8.16	8.75	9.08	9.6	9.87	8.97

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.65	142°	3.79
8	40.9°	4.4	149°	4.73
10	39°	4.97	151°	5.59
12	37.9°	5.22	159°	6.3
14	37.3°	5.32	180°	6.92
16	37.1°	5.37	180°	7.38
20	36.8°	5.46	180°	8.21

Loading polar chart…