ZMPIRIS — ORC Rating | RegattaPages

GPH

785

OSN

762.2

LOA

8.32 m

Displacement

3110 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5081

Medium

0.6895

High

0.8154

Triple Offshore

Low

0.6581

Medium

0.8656

High

0.9874

Boat Specifications

Dimensions

Length overall: 8.32 m
Beam: 3 m
Draft: 1.62 m
Displacement: 3110 kg
Crew weight: 320 kg
Wetted surface: 17.39 m²

Sails

Mainsail: 17.19 m²
Genoa: 13.98 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 53.45 m²

Design

Type: Moody 28
Builder: Moody Yachts
Designer: Bill Dixon
Year built: 1985
Stability index: 115.9

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.

6,44.5,3.47704,52,3.82,60,4.04,75,4.25,90,4.63,110,4.72,120,4.56,135,4.17,146.2,3.754583,150,3.6
8,42.9,4.136277,52,4.58,60,4.82,75,5.16,90,5.6,110,5.7,120,5.58,135,5.14,146.6,4.659532,150,4.49
10,41.8,4.587673,52,5.16,60,5.42,75,5.78,90,6.11,110,6.19,120,6.13,135,5.89,146.2,5.487467,150,5.26
12,42,5.059579,52,5.61,60,5.82,75,6.01,90,6.37,110,6.52,120,6.47,135,6.28,148,5.8841,150,5.77
14,41.2,5.382668,52,5.89,60,6.05,75,6.19,90,6.5,110,6.83,120,6.81,135,6.6,150,6.08,169.4,5.453054
16,40.5,5.549667,52,6.05,60,6.2,75,6.37,90,6.6,110,7.1,120,7.15,135,6.94,150,6.32,174.5,5.856964
20,40.8,5.614304,52,6.13,60,6.34,75,6.65,90,6.83,110,7.37,120,7.67,135,7.56,150,6.81,177.2,6.377614

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.82	4.04	4.25	4.63	4.72	4.56	4.17	3.6
8	4.58	4.82	5.16	5.6	5.7	5.58	5.14	4.49
10	5.16	5.42	5.78	6.11	6.19	6.13	5.89	5.26
12	5.61	5.82	6.01	6.37	6.52	6.47	6.28	5.77
14	5.89	6.05	6.19	6.5	6.83	6.81	6.6	6.08
16	6.05	6.2	6.37	6.6	7.1	7.15	6.94	6.32
20	6.13	6.34	6.65	6.83	7.37	7.67	7.56	6.81

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.5°	2.48	146.2°	3.12
8	42.9°	3.03	146.6°	3.89
10	41.8°	3.42	146.2°	4.56
12	42°	3.76	148°	4.99
14	41.2°	4.05	169.4°	5.36
16	40.5°	4.22	174.5°	5.83
20	40.8°	4.25	177.2°	6.37

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