Felicita — ORC Rating

GPH

792

OSN

769.1

LOA

7.4 m

Displacement

1800 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5149

Medium

0.6962

High

0.8037

Triple Offshore

Low

0.6622

Medium

0.8541

High

0.959

Boat Specifications

Dimensions

Length overall: 7.4 m
Beam: 2.41 m
Draft: 1.24 m
Displacement: 1800 kg
Crew weight: 300 kg
Wetted surface: 13.51 m²

Sails

Mainsail: 11.57 m²
Genoa: 16.31 m²
Spinnaker: 41.81 m²
Asymmetric spinnaker: 0 m²

Design

Type: BIRDIE 24
Designer: Harry Becker
Year built: 1976

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.

6,43.9,3.580593,52,3.98,60,4.22,75,4.39,90,4.49,110,4.62,120,4.5,135,4.13,149,3.616564,150,3.58
8,42.8,4.184101,52,4.7,60,4.98,75,5.16,90,5.37,110,5.49,120,5.41,135,5.04,150,4.46,152,4.37172
10,42.8,4.688374,52,5.22,60,5.43,75,5.58,90,5.81,110,5.91,120,5.86,135,5.65,150,5.21,154,5.062339
12,42,5.073035,52,5.53,60,5.68,75,5.81,90,6.05,110,6.23,120,6.19,135,5.99,150,5.71,173,5.208826
14,40.7,5.249729,52,5.71,60,5.85,75,6.01,90,6.16,110,6.55,120,6.53,135,6.31,150,6.01,180,5.64
16,40.5,5.312951,52,5.79,60,5.97,75,6.18,90,6.27,110,6.78,120,6.85,135,6.65,150,6.31,180,5.94
20,41.6,5.322292,52,5.79,60,6.01,75,6.4,90,6.64,110,7.03,120,7.3,135,7.29,150,6.92,180,6.52

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.98	4.22	4.39	4.49	4.62	4.5	4.13	3.58
8	4.7	4.98	5.16	5.37	5.49	5.41	5.04	4.46
10	5.22	5.43	5.58	5.81	5.91	5.86	5.65	5.21
12	5.53	5.68	5.81	6.05	6.23	6.19	5.99	5.71
14	5.71	5.85	6.01	6.16	6.55	6.53	6.31	6.01
16	5.79	5.97	6.18	6.27	6.78	6.85	6.65	6.31
20	5.79	6.01	6.4	6.64	7.03	7.3	7.29	6.92

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.9°	2.58	149°	3.1
8	42.8°	3.07	152°	3.86
10	42.8°	3.44	154°	4.55
12	42°	3.77	173°	5.17
14	40.7°	3.98	180°	5.64
16	40.5°	4.04	180°	5.94
20	41.6°	3.98	180°	6.52

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