MERAK — ORC Rating | RegattaPages

GPH

609.1

OSN

592.9

LOA

8.083 m

Displacement

970 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6881

Medium

0.8889

High

1.0276

Triple Offshore

Low

0.8765

Medium

1.0978

High

1.2632

Boat Specifications

Dimensions

Length overall: 8.083 m
Beam: 2.69 m
Draft: 1.57 m
Displacement: 970 kg
Crew weight: 420 kg
Wetted surface: 12.73 m²

Sails

Mainsail: 22.52 m²
Genoa: 17.1 m²
Spinnaker: 57.61 m²
Asymmetric spinnaker: 0 m²

Design

Type: Dolphin 81
Builder: Maxi Dolphin
Designer: Santarelli
Year built: 1992
Stability index: 103.9

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.

6,42.4,5.051084,52,5.65,60,5.9,75,6.03,90,5.91,110,5.85,120,5.71,135,5.17,141.9,4.790739,150,4.36
8,39.4,5.771718,52,6.39,60,6.57,75,6.7,90,6.65,110,6.79,120,6.72,135,6.31,147.3,5.60896,150,5.45
10,37.6,6.045769,52,6.73,60,6.96,75,7.19,90,7.24,110,7.46,120,7.49,135,7.06,150,6.35,153.7,6.168526
12,37,6.147986,52,6.9,60,7.18,75,7.59,90,7.79,110,7.96,120,8.25,135,7.88,150,7.08,156.8,6.723711
14,36.9,6.21495,52,7.01,60,7.32,75,7.85,90,8.32,110,8.41,120,8.92,135,8.86,150,7.81,156.3,7.426316
16,37,6.2732,52,7.09,60,7.43,75,8.06,90,8.72,110,8.85,120,9.5,135,9.99,150,8.68,150.5,8.640146
20,37.8,6.289905,52,7.15,60,7.55,75,8.33,90,9.28,110,10.38,120,10.86,135,12.62,144,12.484287,150,11.67

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.65	5.9	6.03	5.91	5.85	5.71	5.17	4.36
8	6.39	6.57	6.7	6.65	6.79	6.72	6.31	5.45
10	6.73	6.96	7.19	7.24	7.46	7.49	7.06	6.35
12	6.9	7.18	7.59	7.79	7.96	8.25	7.88	7.08
14	7.01	7.32	7.85	8.32	8.41	8.92	8.86	7.81
16	7.09	7.43	8.06	8.72	8.85	9.5	9.99	8.68
20	7.15	7.55	8.33	9.28	10.38	10.86	12.62	11.67

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.73	141.9°	3.77
8	39.4°	4.46	147.3°	4.72
10	37.6°	4.79	153.7°	5.53
12	37°	4.91	156.8°	6.18
14	36.9°	4.97	156.3°	6.8
16	37°	5.01	150.5°	7.52
20	37.8°	4.97	144°	10.1

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