EXPRESS — ORC Rating | RegattaPages

GPH

621

OSN

604.5

LOA

11.294 m

Displacement

4781 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6495

Medium

0.8859

High

1.0252

Triple Offshore

Low

0.8425

Medium

1.0905

High

1.2256

Boat Specifications

Dimensions

Length overall: 11.294 m
Beam: 3.58 m
Draft: 2.11 m
Displacement: 4781 kg
Crew weight: 650 kg
Wetted surface: 22.77 m²

Sails

Mainsail: 40.58 m²
Genoa: 30.36 m²
Spinnaker: 63.5 m²
Asymmetric spinnaker: 0 m²

Design

Type: Davidson 36
Builder: ATKINSON
Designer: DAVIDSON
Year built: 1980

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.

6,42.4,4.820874,52,5.43,60,5.74,75,5.99,90,5.91,110,5.61,120,5.4,135,4.82,145,4.272711,150,4.04
8,41.2,5.688351,52,6.39,60,6.66,75,6.86,90,6.87,110,6.78,120,6.58,135,5.95,150,5.103776
10,40.1,6.314374,52,6.96,60,7.13,75,7.27,90,7.32,110,7.37,120,7.26,135,6.84,150,6.07,151.5,5.985318
12,38.6,6.538536,52,7.21,60,7.39,75,7.57,90,7.67,110,7.79,120,7.69,135,7.36,150,6.87,157,6.539889
14,37.9,6.627938,52,7.32,60,7.53,75,7.82,90,7.96,110,8.22,120,8.12,135,7.77,150,7.35,180,6.69
16,37.5,6.680504,52,7.38,60,7.61,75,8,90,8.24,110,8.59,120,8.53,135,8.19,150,7.73,180,7.21
20,37.5,6.730923,52,7.42,60,7.69,75,8.15,90,8.62,110,9.06,120,9.39,135,9.02,150,8.51,180,7.97

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.43	5.74	5.99	5.91	5.61	5.4	4.82	4.04
8	6.39	6.66	6.86	6.87	6.78	6.58	5.95	5.11
10	6.96	7.13	7.27	7.32	7.37	7.26	6.84	6.07
12	7.21	7.39	7.57	7.67	7.79	7.69	7.36	6.87
14	7.32	7.53	7.82	7.96	8.22	8.12	7.77	7.35
16	7.38	7.61	8	8.24	8.59	8.53	8.19	7.73
20	7.42	7.69	8.15	8.62	9.06	9.39	9.02	8.51

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.56	145°	3.5
8	41.2°	4.28	150°	4.42
10	40.1°	4.83	151.5°	5.26
12	38.6°	5.11	157°	6.02
14	37.9°	5.23	180°	6.69
16	37.5°	5.3	180°	7.21
20	37.5°	5.34	180°	7.97

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