NAFSITHOI — ORC Rating

GPH

730.4

OSN

705.2

LOA

10.15 m

Displacement

5520 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6037

Medium

0.8413

High

1.0225

Triple Offshore

Low

0.7797

Medium

1.0526

High

1.2236

Boat Specifications

Dimensions

Length overall: 10.15 m
Beam: 3.24 m
Draft: 1.73 m
Displacement: 5520 kg
Crew weight: 650 kg
Wetted surface: 24.3 m²

Sails

Mainsail: 22.64 m²
Genoa: 28.11 m²
Spinnaker: 64.28 m²
Asymmetric spinnaker: 0 m²

Design

Type: DISCOVERY 3000EXT
Builder: DROMOR YACHTS
Designer: ED DUBOIS
Year built: 1989

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.

6,44.5,3.785487,52,4.19,60,4.45,75,4.67,90,4.66,110,4.79,120,4.67,135,4.24,147.5,3.723064,150,3.62
8,42.9,4.504856,52,5.01,60,5.29,75,5.53,90,5.68,110,5.83,120,5.69,135,5.23,150,4.61,151.2,4.564612
10,42.2,5.035066,52,5.67,60,6,75,6.25,90,6.49,110,6.59,120,6.5,135,6.13,150,5.45,153.3,5.294551
12,42.8,5.601517,52,6.22,60,6.47,75,6.65,90,6.88,110,6.98,120,6.92,135,6.69,150,6.22,155.2,5.970626
14,42.1,6.010977,52,6.54,60,6.73,75,6.88,90,7.11,110,7.28,120,7.22,135,7.01,150,6.7,172.2,6.106498
16,40.8,6.155919,52,6.71,60,6.89,75,7.07,90,7.23,110,7.57,120,7.53,135,7.3,150,7,180,6.57
20,40.4,6.211112,52,6.8,60,7.02,75,7.34,90,7.52,110,8.03,120,8.16,135,7.94,150,7.56,180,7.16

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.19	4.45	4.67	4.66	4.79	4.67	4.24	3.62
8	5.01	5.29	5.53	5.68	5.83	5.69	5.23	4.61
10	5.67	6	6.25	6.49	6.59	6.5	6.13	5.45
12	6.22	6.47	6.65	6.88	6.98	6.92	6.69	6.22
14	6.54	6.73	6.88	7.11	7.28	7.22	7.01	6.7
16	6.71	6.89	7.07	7.23	7.57	7.53	7.3	7
20	6.8	7.02	7.34	7.52	8.03	8.16	7.94	7.56

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.5°	2.7	147.5°	3.14
8	42.9°	3.3	151.2°	4
10	42.2°	3.73	153.3°	4.73
12	42.8°	4.11	155.2°	5.42
14	42.1°	4.46	172.2°	6.05
16	40.8°	4.66	180°	6.57
20	40.4°	4.73	180°	7.16

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