KAIROS 4 — ORC Rating

GPH

639.4

OSN

625.9

LOA

8 m

Displacement

1463 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6726

Medium

0.8435

High

0.9557

Triple Offshore

Low

0.8544

Medium

1.0372

High

1.1687

Boat Specifications

Dimensions

Length overall: 8 m
Beam: 2.8 m
Draft: 1.76 m
Displacement: 1463 kg
Crew weight: 325 kg
Wetted surface: 13.85 m²

Sails

Mainsail: 26.62 m²
Genoa: 20.68 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 66.91 m²

Design

Type: BEPOX 800
Designer: David Reard
Year built: 2007

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.

6,42,4.830821,52,5.41,60,5.68,75,5.87,90,5.85,110,5.84,120,5.71,135,5.14,144.5,4.643076,150,4.36
8,39.8,5.544828,52,6.12,60,6.26,75,6.38,90,6.41,110,6.55,120,6.47,135,6.15,148.5,5.500562,150,5.42
10,37.9,5.766179,52,6.37,60,6.55,75,6.76,90,6.8,110,7.12,120,7.09,135,6.72,150,6.18,150.8,6.12884
12,37.5,5.873801,52,6.48,60,6.7,75,7.1,90,7.26,110,7.54,120,7.78,135,7.35,150,6.63,151,6.574286
14,36.9,5.902327,52,6.54,60,6.79,75,7.29,90,7.7,110,7.92,120,8.33,135,8.11,150,7.09,177,6.268591
16,36.8,5.99452,52,6.61,60,6.85,75,7.41,90,8.02,110,8.29,120,8.77,135,9.05,144,8.331098,150,7.78
20,38.2,5.980733,52,6.67,60,7.02,75,7.6,90,8.34,110,9.18,120,9.75,135,11.32,140.2,11.519185,150,10.22

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.41	5.68	5.87	5.85	5.84	5.71	5.14	4.36
8	6.12	6.26	6.38	6.41	6.55	6.47	6.15	5.42
10	6.37	6.55	6.76	6.8	7.12	7.09	6.72	6.18
12	6.48	6.7	7.1	7.26	7.54	7.78	7.35	6.63
14	6.54	6.79	7.29	7.7	7.92	8.33	8.11	7.09
16	6.61	6.85	7.41	8.02	8.29	8.77	9.05	7.78
20	6.67	7.02	7.6	8.34	9.18	9.75	11.32	10.22

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.59	144.5°	3.78
8	39.8°	4.26	148.5°	4.69
10	37.9°	4.55	150.8°	5.35
12	37.5°	4.66	151°	5.75
14	36.9°	4.72	177°	6.26
16	36.8°	4.8	144°	6.74
20	38.2°	4.7	140.2°	8.85

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