Cascade — ORC Rating | RegattaPages

GPH

710.1

OSN

690.2

LOA

10.5 m

Displacement

4350 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5793

Medium

0.7723

High

0.8817

Triple Offshore

Low

0.7423

Medium

0.9539

High

1.0507

Boat Specifications

Dimensions

Length overall: 10.5 m
Beam: 2.3 m
Draft: 1.65 m
Displacement: 4350 kg
Crew weight: 420 kg
Wetted surface: 20.24 m²

Sails

Mainsail: 21.47 m²
Genoa: 29.26 m²
Spinnaker: 63.26 m²
Asymmetric spinnaker: 0 m²

Design

Type: Botnia 6 HR
Year built: 1970
Stability index: 148.5

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.

6,42.4,4.116701,52,4.6,60,4.84,75,5.03,90,4.94,110,4.98,120,4.84,135,4.41,146.9,3.915395,150,3.79
8,40.6,4.79407,52,5.44,60,5.72,75,5.94,90,5.89,110,6.06,120,5.93,135,5.43,150,4.76,151.4,4.703964
10,41.8,5.392528,52,6.01,60,6.25,75,6.43,90,6.43,110,6.61,120,6.56,135,6.28,150,5.65,151.1,5.597029
12,41.8,5.647398,52,6.24,60,6.48,75,6.67,90,6.71,110,6.87,120,6.9,135,6.72,150,6.35,157.7,6.041873
14,41.4,5.745816,52,6.35,60,6.58,75,6.82,90,6.9,110,7.02,120,7.17,135,7.03,150,6.73,171.8,6.223629
16,41.5,5.821439,52,6.41,60,6.64,75,6.91,90,7.06,110,7.14,120,7.35,135,7.34,150,7.02,178.1,6.593625
20,40.6,5.860883,52,6.46,60,6.68,75,7,90,7.29,110,7.3,120,7.63,135,7.95,150,7.63,179,7.161091

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.6	4.84	5.03	4.94	4.98	4.84	4.41	3.79
8	5.44	5.72	5.94	5.89	6.06	5.93	5.43	4.76
10	6.01	6.25	6.43	6.43	6.61	6.56	6.28	5.65
12	6.24	6.48	6.67	6.71	6.87	6.9	6.72	6.35
14	6.35	6.58	6.82	6.9	7.02	7.17	7.03	6.73
16	6.41	6.64	6.91	7.06	7.14	7.35	7.34	7.02
20	6.46	6.68	7	7.29	7.3	7.63	7.95	7.63

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.04	146.9°	3.28
8	40.6°	3.64	151.4°	4.13
10	41.8°	4.02	151.1°	4.9
12	41.8°	4.21	157.7°	5.59
14	41.4°	4.31	171.8°	6.16
16	41.5°	4.36	178.1°	6.59
20	40.6°	4.45	179°	7.16

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