MK III — ORC Rating | RegattaPages

GPH

673.8

OSN

654.5

LOA

10.7 m

Displacement

7643 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6824

Medium

0.9181

High

1.0592

Triple Offshore

Low

0.874

Medium

1.1315

High

1.2617

Boat Specifications

Dimensions

Length overall: 10.7 m
Beam: 3.26 m
Draft: 1.98 m
Displacement: 7643 kg
Crew weight: 525 kg
Wetted surface: 28.3 m²

Sails

Mainsail: 34.69 m²
Genoa: 42.44 m²
Spinnaker: 87.78 m²
Asymmetric spinnaker: 0 m²

Design

Type: DRAC ONE TON
Builder: MARYOLA
Designer: ANDRE MAURIC
Year built: 1972

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.

6,42.6,4.360838,52,4.85,60,5.09,75,5.29,90,5.24,110,5.17,120,5.03,135,4.61,147.1,4.073272,150,3.95
8,41,5.0483,52,5.7,60,5.99,75,6.22,90,6.18,110,6.27,120,6.11,135,5.61,150,4.96,151.5,4.881562
10,41.4,5.69249,52,6.36,60,6.58,75,6.73,90,6.78,110,6.89,120,6.81,135,6.48,150,5.81,152.7,5.671733
12,41.4,6.105762,52,6.67,60,6.84,75,6.99,90,7.05,110,7.22,120,7.17,135,6.95,150,6.55,157.1,6.241957
14,40.8,6.221969,52,6.81,60,6.99,75,7.17,90,7.25,110,7.5,120,7.48,135,7.27,150,6.96,180,6.38
16,40.5,6.286116,52,6.88,60,7.07,75,7.32,90,7.44,110,7.71,120,7.78,135,7.57,150,7.25,180,6.84
20,41.2,6.379459,52,6.93,60,7.14,75,7.48,90,7.77,110,7.96,120,8.24,135,8.21,150,7.84,180,7.42

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.85	5.09	5.29	5.24	5.17	5.03	4.61	3.95
8	5.7	5.99	6.22	6.18	6.27	6.11	5.61	4.96
10	6.36	6.58	6.73	6.78	6.89	6.81	6.48	5.81
12	6.67	6.84	6.99	7.05	7.22	7.17	6.95	6.55
14	6.81	6.99	7.17	7.25	7.5	7.48	7.27	6.96
16	6.88	7.07	7.32	7.44	7.71	7.78	7.57	7.25
20	6.93	7.14	7.48	7.77	7.96	8.24	8.21	7.84

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.21	147.1°	3.42
8	41°	3.81	151.5°	4.29
10	41.4°	4.27	152.7°	5.04
12	41.4°	4.58	157.1°	5.75
14	40.8°	4.71	180°	6.38
16	40.5°	4.78	180°	6.84
20	41.2°	4.8	180°	7.42

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