KAIROS 4: ORC Rating

GPH

635.5

OSN

620.8

LOA

8 m

Displacement

1463 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6784

Medium

0.8504

High

0.9655

Triple Offshore

Low

0.8571

Medium

1.045

High

1.1783

Boat Specifications

Dimensions

Length overall: 8 m
Beam: 2.8 m
Draft: 1.76 m
Displacement: 1463 kg
Crew weight: 325 kg
Wetted surface: 13.74 m²

Sails

Mainsail: 25.33 m²
Genoa: 20.68 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 66.91 m²

Design

Type: BEPOX 800
Designer: David Reard
Year built: 2007
Stability index: 113.6

Performance data

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into Offwind or compatible navigation software.

6,41.4,4.892609,52,5.47,60,5.69,75,5.83,90,5.75,110,5.77,120,5.65,135,5.11,144.2,4.648216,150,4.35
8,39,5.533066,52,6.14,60,6.28,75,6.38,90,6.38,110,6.55,120,6.49,135,6.14,148.8,5.494735,150,5.43
10,37.3,5.770148,52,6.43,60,6.61,75,6.79,90,6.81,110,7.14,120,7.13,135,6.8,150,6.2,150.2,6.188308
12,37,5.897559,52,6.57,60,6.8,75,7.13,90,7.25,110,7.57,120,7.76,135,7.45,149.1,6.794358,150,6.74
14,37,5.972687,52,6.65,60,6.92,75,7.33,90,7.64,110,7.92,120,8.36,135,8.21,146.6,7.51035,150,7.24
16,37,6.010251,52,6.71,60,6.99,75,7.48,90,7.96,110,8.25,120,8.81,135,9.11,144.1,8.456355,150,7.91
20,37.6,5.982661,52,6.73,60,7.06,75,7.65,90,8.36,110,8.93,120,9.75,135,11.79,141.9,11.627389,150,10.57

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.47	5.69	5.83	5.75	5.77	5.65	5.11	4.35
8	6.14	6.28	6.38	6.38	6.55	6.49	6.14	5.43
10	6.43	6.61	6.79	6.81	7.14	7.13	6.8	6.2
12	6.57	6.8	7.13	7.25	7.57	7.76	7.45	6.74
14	6.65	6.92	7.33	7.64	7.92	8.36	8.21	7.24
16	6.71	6.99	7.48	7.96	8.25	8.81	9.11	7.91
20	6.73	7.06	7.65	8.36	8.93	9.75	11.79	10.57

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.4°	3.67	144.2°	3.77
8	39°	4.3	148.8°	4.7
10	37.3°	4.59	150.2°	5.37
12	37°	4.71	149.1°	5.83
14	37°	4.77	146.6°	6.27
16	37°	4.8	144.1°	6.85
20	37.6°	4.74	141.9°	9.15

VPP POLAR · BOAT SPEED BY TWAKT

TRUE WIND ANGLE —

READ AT ANGLE

Hover or tap the chart, or use the slider, to read boat speeds.

True wind speed 6 kt8 kt10 kt12 kt14 kt16 kt20 kt

Data table

Boat speed by true wind angle and true wind speed
TWA	Boat speed in 6 kt (kt)	Boat speed in 8 kt (kt)	Boat speed in 10 kt (kt)	Boat speed in 12 kt (kt)	Boat speed in 14 kt (kt)	Boat speed in 16 kt (kt)	Boat speed in 20 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	5.47	6.14	6.43	6.57	6.65	6.71	6.73
60°	5.69	6.28	6.61	6.80	6.92	6.99	7.06
75°	5.83	6.38	6.79	7.13	7.33	7.48	7.65
90°	5.75	6.38	6.81	7.25	7.64	7.96	8.36
110°	5.77	6.55	7.14	7.57	7.92	8.25	8.93
120°	5.65	6.49	7.13	7.76	8.36	8.81	9.75
135°	5.11	6.14	6.80	7.45	8.21	9.11	11.79
150°	4.35	5.43	6.20	6.74	7.24	7.91	10.57