Firefly — ORC Rating | RegattaPages

GPH

800.1

OSN

774.2

LOA

7.5 m

Displacement

1901 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5115

Medium

0.6919

High

0.787

Triple Offshore

Low

0.6545

Medium

0.848

High

0.9403

Boat Specifications

Dimensions

Length overall: 7.5 m
Beam: 2.3 m
Draft: 1.25 m
Displacement: 1901 kg
Crew weight: 170 kg
Wetted surface: 12.37 m²

Sails

Mainsail: 12.52 m²
Genoa: 14.27 m²
Spinnaker: 32.11 m²
Asymmetric spinnaker: 0 m²

Design

Type: Flamenca
Builder: Nebe
Designer: Berckemeyer
Year built: 1976
Stability index: 107.7

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.

6,44.2,3.682467,52,4.05,60,4.26,75,4.39,90,4.36,110,4.45,120,4.32,135,3.92,147.5,3.462212,150,3.37
8,42,4.279112,52,4.76,60,4.96,75,5.12,90,5.22,110,5.33,120,5.22,135,4.83,150,4.29,152,4.213161
10,41.2,4.718141,52,5.23,60,5.41,75,5.57,90,5.72,110,5.83,120,5.77,135,5.51,150,5.04,155.6,4.831535
12,40.6,5.017969,52,5.52,60,5.69,75,5.84,90,5.98,110,6.14,120,6.11,135,5.93,150,5.6,164.6,5.186209
14,40.2,5.119168,52,5.67,60,5.84,75,6.02,90,6.1,110,6.38,120,6.38,135,6.23,150,5.96,175.4,5.517773
16,40.2,5.158445,52,5.73,60,5.91,75,6.15,90,6.26,110,6.59,120,6.64,135,6.52,150,6.25,179,5.870894
20,41.2,5.156729,52,5.73,60,5.95,75,6.28,90,6.53,110,6.87,120,7.17,135,7.14,150,6.8,179,6.400975

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.05	4.26	4.39	4.36	4.45	4.32	3.92	3.37
8	4.76	4.96	5.12	5.22	5.33	5.22	4.83	4.29
10	5.23	5.41	5.57	5.72	5.83	5.77	5.51	5.04
12	5.52	5.69	5.84	5.98	6.14	6.11	5.93	5.6
14	5.67	5.84	6.02	6.1	6.38	6.38	6.23	5.96
16	5.73	5.91	6.15	6.26	6.59	6.64	6.52	6.25
20	5.73	5.95	6.28	6.53	6.87	7.17	7.14	6.8

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	2.64	147.5°	2.92
8	42°	3.18	152°	3.72
10	41.2°	3.55	155.6°	4.4
12	40.6°	3.81	164.6°	5
14	40.2°	3.91	175.4°	5.5
16	40.2°	3.94	179°	5.87
20	41.2°	3.88	179°	6.4

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