Woodlark — ORC Rating

GPH

793

OSN

768.1

LOA

6.25 m

Displacement

1234 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5717

Medium

0.7791

High

0.9247

Triple Offshore

Low

0.7352

Medium

0.9616

High

1.1064

Boat Specifications

Dimensions

Length overall: 6.25 m
Beam: 2.43 m
Draft: 1.81 m
Displacement: 1234 kg
Crew weight: 351 kg
Wetted surface: 12.34 m²

Sails

Mainsail: 13.37 m²
Genoa: 10.62 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 31.42 m²

Design

Type: First 21.7
Builder: Beneteau
Designer: Finot
Year built: 1999

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.

6,41.5,3.431445,52,3.86,60,4.05,75,4.26,90,4.55,110,4.59,120,4.42,135,4,146.2,3.586108,150,3.44
8,40.1,4.091924,52,4.62,60,4.83,75,5.14,90,5.43,110,5.44,120,5.32,135,4.93,146.6,4.46788,150,4.3
10,39.7,4.639982,52,5.2,60,5.36,75,5.63,90,5.85,110,5.86,120,5.77,135,5.55,146.9,5.168799,150,5
12,38.4,5.027476,52,5.52,60,5.64,75,5.9,90,6.22,110,6.25,120,6.15,135,5.9,150,5.43864
14,35.9,5.234299,52,5.74,60,5.86,75,6.04,90,6.5,110,6.67,120,6.56,135,6.27,150,5.73,176,5.252796
16,34.8,5.346166,52,5.9,60,6.06,75,6.24,90,6.63,110,7.09,120,6.98,135,6.66,150,6,177.8,5.614138
20,35.5,5.380072,52,5.98,60,6.21,75,6.63,90,6.86,110,7.66,120,7.94,135,7.49,150,6.62,177.6,6.155399

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.86	4.05	4.26	4.55	4.59	4.42	4	3.44
8	4.62	4.83	5.14	5.43	5.44	5.32	4.93	4.3
10	5.2	5.36	5.63	5.85	5.86	5.77	5.55	5
12	5.52	5.64	5.9	6.22	6.25	6.15	5.9	5.44
14	5.74	5.86	6.04	6.5	6.67	6.56	6.27	5.73
16	5.9	6.06	6.24	6.63	7.09	6.98	6.66	6
20	5.98	6.21	6.63	6.86	7.66	7.94	7.49	6.62

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.5°	2.57	146.2°	2.98
8	40.1°	3.13	146.6°	3.73
10	39.7°	3.57	146.9°	4.33
12	38.4°	3.94	150°	4.71
14	35.9°	4.24	176°	5.24
16	34.8°	4.39	177.8°	5.61
20	35.5°	4.38	177.6°	6.15

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