MARA — ORC Rating | RegattaPages

GPH

779

OSN

751.7

LOA

8.995 m

Displacement

4538 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5661

Medium

0.7978

High

0.9588

Triple Offshore

Low

0.733

Medium

0.9872

High

1.1387

Boat Specifications

Dimensions

Length overall: 8.995 m
Beam: 3.22 m
Draft: 1.83 m
Displacement: 4538 kg
Crew weight: 420 kg
Wetted surface: 20.32 m²

Sails

Mainsail: 18.4 m²
Genoa: 32.52 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 0 m²

Design

Type: NEREIS 30
Builder: AKROPRORO
Designer: VAN DE STADT
Year built: 1981

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.

6,43.9,3.830401,52,4.26,60,4.51,75,4.7,90,4.65,110,4.3,120,4.04,135,3.55,150,3.07,156,2.911733
8,41.9,4.473933,52,5.02,60,5.29,75,5.53,90,5.49,110,5.18,120,4.9,135,4.46,150,3.97,164,3.630645
10,41.5,5.006972,52,5.64,60,5.9,75,6.09,90,6.1,110,5.92,120,5.67,135,5.19,150,4.71,170.6,4.277437
12,41.6,5.496136,52,6.04,60,6.22,75,6.37,90,6.4,110,6.34,120,6.2,135,5.86,150,5.37,172.9,4.887477
14,40.5,5.720628,52,6.25,60,6.41,75,6.56,90,6.64,110,6.59,120,6.5,135,6.28,150,5.96,173.1,5.48976
16,39.8,5.805149,52,6.35,60,6.53,75,6.72,90,6.87,110,6.82,120,6.73,135,6.54,150,6.33,176.8,5.979323
20,39.5,5.818892,52,6.41,60,6.61,75,6.94,90,7.19,110,7.3,120,7.22,135,7.01,150,6.8,179.2,6.56064

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.26	4.51	4.7	4.65	4.3	4.04	3.55	3.07
8	5.02	5.29	5.53	5.49	5.18	4.9	4.46	3.97
10	5.64	5.9	6.09	6.1	5.92	5.67	5.19	4.71
12	6.04	6.22	6.37	6.4	6.34	6.2	5.86	5.37
14	6.25	6.41	6.56	6.64	6.59	6.5	6.28	5.96
16	6.35	6.53	6.72	6.87	6.82	6.73	6.54	6.33
20	6.41	6.61	6.94	7.19	7.3	7.22	7.01	6.8

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.9°	2.76	156°	2.66
8	41.9°	3.33	164°	3.49
10	41.5°	3.75	170.6°	4.22
12	41.6°	4.11	172.9°	4.85
14	40.5°	4.35	173.1°	5.45
16	39.8°	4.46	176.8°	5.97
20	39.5°	4.49	179.2°	6.56

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