IOESSA — ORC Rating | RegattaPages

GPH

726.3

OSN

701.4

LOA

9.98 m

Displacement

5564 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5472

Medium

0.7558

High

0.8932

Triple Offshore

Low

0.7054

Medium

0.9394

High

1.0686

Boat Specifications

Dimensions

Length overall: 9.98 m
Beam: 3.24 m
Draft: 1.74 m
Displacement: 5564 kg
Crew weight: 300 kg
Wetted surface: 23.68 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
Stability index: 110

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.

6,44.7,3.925158,52,4.34,60,4.62,75,4.83,90,4.77,110,4.82,120,4.68,135,4.25,146.9,3.772149,150,3.64
8,42.6,4.605371,52,5.14,60,5.42,75,5.67,90,5.69,110,5.84,120,5.7,135,5.23,150,4.64,151.4,4.578676
10,41.8,5.137657,52,5.79,60,6.06,75,6.28,90,6.42,110,6.54,120,6.45,135,6.07,150,5.46,153.8,5.293904
12,41.8,5.633984,52,6.23,60,6.46,75,6.63,90,6.8,110,6.92,120,6.87,135,6.63,150,6.18,157.4,5.881651
14,41.2,5.900999,52,6.49,60,6.68,75,6.85,90,6.96,110,7.2,120,7.16,135,6.96,150,6.66,168.2,6.149965
16,40.8,5.997397,52,6.59,60,6.8,75,7,90,7.1,110,7.45,120,7.45,135,7.25,150,6.97,177.2,6.517781
20,40.8,6.023817,52,6.64,60,6.86,75,7.19,90,7.43,110,7.77,120,8.02,135,7.9,150,7.53,179,7.101082

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.34	4.62	4.83	4.77	4.82	4.68	4.25	3.64
8	5.14	5.42	5.67	5.69	5.84	5.7	5.23	4.64
10	5.79	6.06	6.28	6.42	6.54	6.45	6.07	5.46
12	6.23	6.46	6.63	6.8	6.92	6.87	6.63	6.18
14	6.49	6.68	6.85	6.96	7.2	7.16	6.96	6.66
16	6.59	6.8	7	7.1	7.45	7.45	7.25	6.97
20	6.64	6.86	7.19	7.43	7.77	8.02	7.9	7.53

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.7°	2.79	146.9°	3.16
8	42.6°	3.39	151.4°	4.02
10	41.8°	3.83	153.8°	4.75
12	41.8°	4.2	157.4°	5.43
14	41.2°	4.44	168.2°	6.02
16	40.8°	4.54	177.2°	6.51
20	40.8°	4.56	179°	7.1

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