NAFSITHOI — ORC Rating

GPH

727.8

OSN

703.8

LOA

10.15 m

Displacement

5520 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.54

Medium

0.7507

High

0.9001

Triple Offshore

Low

0.6993

Medium

0.9383

High

1.0788

Boat Specifications

Dimensions

Length overall: 10.15 m
Beam: 3.24 m
Draft: 1.73 m
Displacement: 5520 kg
Crew weight: 400 kg
Wetted surface: 24.25 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.

6,45,3.860803,52,4.27,60,4.56,75,4.78,90,4.73,110,4.83,120,4.7,135,4.26,147,3.755944,150,3.63
8,43.5,4.590733,52,5.08,60,5.38,75,5.63,90,5.7,110,5.87,120,5.73,135,5.25,150,4.62,151,4.58485
10,42.4,5.105251,52,5.72,60,6.05,75,6.3,90,6.48,110,6.61,120,6.52,135,6.14,150,5.46,153,5.319826
12,42.4,5.606297,52,6.24,60,6.48,75,6.66,90,6.85,110,6.98,120,6.92,135,6.69,150,6.23,155,5.991342
14,42,5.961153,52,6.52,60,6.71,75,6.88,90,7.03,110,7.26,120,7.22,135,7.02,150,6.7,172,6.129653
16,41.2,6.073777,52,6.66,60,6.85,75,7.05,90,7.13,110,7.53,120,7.52,135,7.31,150,7.01,180,6.57
20,41.2,6.126939,52,6.72,60,6.94,75,7.27,90,7.48,110,7.89,120,8.11,135,7.95,150,7.56,180,7.16

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.27	4.56	4.78	4.73	4.83	4.7	4.26	3.63
8	5.08	5.38	5.63	5.7	5.87	5.73	5.25	4.62
10	5.72	6.05	6.3	6.48	6.61	6.52	6.14	5.46
12	6.24	6.48	6.66	6.85	6.98	6.92	6.69	6.23
14	6.52	6.71	6.88	7.03	7.26	7.22	7.02	6.7
16	6.66	6.85	7.05	7.13	7.53	7.52	7.31	7.01
20	6.72	6.94	7.27	7.48	7.89	8.11	7.95	7.56

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45°	2.73	147°	3.15
8	43.5°	3.33	151°	4.01
10	42.4°	3.77	153°	4.74
12	42.4°	4.14	155°	5.43
14	42°	4.43	172°	6.07
16	41.2°	4.57	180°	6.57
20	41.2°	4.61	180°	7.16

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