IOESSA — ORC Rating | RegattaPages

GPH

727.3

OSN

704.4

LOA

9.98 m

Displacement

5565 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5488

Medium

0.7514

High

0.888

Triple Offshore

Low

0.7073

Medium

0.9356

High

1.0656

Boat Specifications

Dimensions

Length overall: 9.98 m
Beam: 3.24 m
Draft: 1.74 m
Displacement: 5565 kg
Crew weight: 290 kg
Wetted surface: 24.14 m²

Sails

Mainsail: 21.15 m²
Genoa: 30.78 m²
Spinnaker: 61.26 m²
Asymmetric spinnaker: 0 m²

Design

Type: DISCOVERY 3000EXT
Builder: DROMOR YACHTS
Designer: ED DUBOIS
Year built: 1985

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.

6,45,3.97394,52,4.36,60,4.63,75,4.85,90,4.81,110,4.83,120,4.7,135,4.28,147,3.779792,150,3.66
8,42.8,4.620229,52,5.15,60,5.42,75,5.65,90,5.66,110,5.8,120,5.67,135,5.24,150,4.64,151,4.596283
10,41.6,5.121703,52,5.73,60,6.03,75,6.28,90,6.41,110,6.54,120,6.45,135,6.05,150,5.44,154.5,5.240502
12,41.2,5.528864,52,6.21,60,6.45,75,6.63,90,6.79,110,6.91,120,6.86,135,6.62,150,6.15,159,5.752049
14,42,5.907328,52,6.47,60,6.67,75,6.84,90,6.96,110,7.18,120,7.14,135,6.95,150,6.64,174,6.03305
16,41.6,6.017667,52,6.59,60,6.79,75,6.99,90,7.08,110,7.44,120,7.42,135,7.23,150,6.94,180,6.51
20,41.6,6.044412,52,6.63,60,6.86,75,7.18,90,7.4,110,7.77,120,8,135,7.85,150,7.48,180,7.09

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.36	4.63	4.85	4.81	4.83	4.7	4.28	3.66
8	5.15	5.42	5.65	5.66	5.8	5.67	5.24	4.64
10	5.73	6.03	6.28	6.41	6.54	6.45	6.05	5.44
12	6.21	6.45	6.63	6.79	6.91	6.86	6.62	6.15
14	6.47	6.67	6.84	6.96	7.18	7.14	6.95	6.64
16	6.59	6.79	6.99	7.08	7.44	7.42	7.23	6.94
20	6.63	6.86	7.18	7.4	7.77	8	7.85	7.48

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45°	2.81	147°	3.17
8	42.8°	3.39	151°	4.02
10	41.6°	3.83	154.5°	4.73
12	41.2°	4.16	159°	5.37
14	42°	4.39	174°	6
16	41.6°	4.5	180°	6.51
20	41.6°	4.52	180°	7.09

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