RITMO — ORC Rating | RegattaPages

GPH

626.8

OSN

608.2

LOA

12.408 m

Displacement

9461 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7314

Medium

0.9893

High

1.1455

Triple Offshore

Low

0.938

Medium

1.2168

High

1.3595

Boat Specifications

Dimensions

Length overall: 12.408 m
Beam: 3.94 m
Draft: 2.29 m
Displacement: 9461 kg
Crew weight: 680 kg
Wetted surface: 34.12 m²

Sails

Mainsail: 36.91 m²
Genoa: 60.5 m²
Spinnaker: 127.92 m²
Asymmetric spinnaker: 0 m²

Design

Type: C-41
Builder: SWEDEN YACHTS
Designer: NORLIN
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.

6,42.5,4.679379,52,5.22,60,5.48,75,5.69,90,5.63,110,5.52,120,5.39,135,4.93,145.9,4.407891,150,4.21
8,40.8,5.442572,52,6.16,60,6.46,75,6.69,90,6.64,110,6.71,120,6.56,135,6.04,150,5.28,150.1,5.271677
10,41,6.16131,52,6.86,60,7.07,75,7.22,90,7.22,110,7.38,120,7.3,135,6.97,150,6.21,150.8,6.163208
12,40.6,6.572091,52,7.17,60,7.35,75,7.5,90,7.53,110,7.73,120,7.69,135,7.46,150,7,155.2,6.74174
14,39.5,6.67423,52,7.32,60,7.5,75,7.69,90,7.76,110,8.02,120,8.03,135,7.81,150,7.45,171,6.824015
16,39.1,6.752174,52,7.39,60,7.58,75,7.84,90,7.97,110,8.21,120,8.37,135,8.15,150,7.77,180,7.26
20,39.2,6.800487,52,7.44,60,7.65,75,8.01,90,8.32,110,8.51,120,8.81,135,8.87,150,8.42,180,7.91

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.22	5.48	5.69	5.63	5.52	5.39	4.93	4.21
8	6.16	6.46	6.69	6.64	6.71	6.56	6.04	5.28
10	6.86	7.07	7.22	7.22	7.38	7.3	6.97	6.21
12	7.17	7.35	7.5	7.53	7.73	7.69	7.46	7
14	7.32	7.5	7.69	7.76	8.02	8.03	7.81	7.45
16	7.39	7.58	7.84	7.97	8.21	8.37	8.15	7.77
20	7.44	7.65	8.01	8.32	8.51	8.81	8.87	8.42

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.5°	3.45	145.9°	3.65
8	40.8°	4.12	150.1°	4.57
10	41°	4.65	150.8°	5.38
12	40.6°	4.99	155.2°	6.12
14	39.5°	5.15	171°	6.74
16	39.1°	5.24	180°	7.26
20	39.2°	5.27	180°	7.91

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