NORA LII — ORC Rating

GPH

639.1

OSN

618.6

LOA

10.594 m

Displacement

6127 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6364

Medium

0.8661

High

1.0066

Triple Offshore

Low

0.8177

Medium

1.0612

High

1.1905

Boat Specifications

Dimensions

Length overall: 10.594 m
Beam: 3.4 m
Draft: 1.98 m
Displacement: 6127 kg
Crew weight: 655 kg
Wetted surface: 27.05 m²

Sails

Mainsail: 34.39 m²
Genoa: 32.99 m²
Spinnaker: 90.16 m²
Asymmetric spinnaker: 93.02 m²

Design

Type: Ridas 35
Builder: Ridas Jaht
Designer: Lönngren/Ridas
Year built: 1997

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.

6,43.5,4.590733,52,5.09,60,5.36,75,5.52,90,5.51,110,5.55,120,5.39,135,4.87,144,4.412763,150,4.13
8,41.4,5.3992,52,6.02,60,6.27,75,6.43,90,6.54,110,6.65,120,6.5,135,6,147.6,5.35337,150,5.22
10,39.9,5.970031,52,6.62,60,6.81,75,6.95,90,7.12,110,7.24,120,7.16,135,6.82,147.9,6.244674,150,6.11
12,38.6,6.308216,52,6.96,60,7.11,75,7.25,90,7.42,110,7.61,120,7.57,135,7.31,150,6.81,157.4,6.48823
14,38,6.471993,52,7.14,60,7.3,75,7.48,90,7.59,110,7.94,120,7.93,135,7.69,150,7.27,169.1,6.711076
16,37.4,6.5457,52,7.23,60,7.41,75,7.65,90,7.74,110,8.21,120,8.28,135,8.07,150,7.62,177.7,7.085708
20,37.2,6.641307,52,7.32,60,7.53,75,7.86,90,8.11,110,8.57,120,8.93,135,8.81,150,8.31,178.6,7.762317
24,38,6.700416,52,7.36,60,7.58,75,7.98,90,8.35,110,8.84,120,9.41,135,9.75,150,9.06,178.6,8.412511

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.09	5.36	5.52	5.51	5.55	5.39	4.87	4.13
8	6.02	6.27	6.43	6.54	6.65	6.5	6	5.22
10	6.62	6.81	6.95	7.12	7.24	7.16	6.82	6.11
12	6.96	7.11	7.25	7.42	7.61	7.57	7.31	6.81
14	7.14	7.3	7.48	7.59	7.94	7.93	7.69	7.27
16	7.23	7.41	7.65	7.74	8.21	8.28	8.07	7.62
20	7.32	7.53	7.86	8.11	8.57	8.93	8.81	8.31
24	7.36	7.58	7.98	8.35	8.84	9.41	9.75	9.06

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.33	144°	3.57
8	41.4°	4.05	147.6°	4.52
10	39.9°	4.58	147.9°	5.29
12	38.6°	4.93	157.4°	5.99
14	38°	5.1	169.1°	6.59
16	37.4°	5.2	177.7°	7.08
20	37.2°	5.29	178.6°	7.76
24	38°	5.28	178.6°	8.41

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