SHOWTIME: ORC Rating

GPH

509

OSN

495.3

LOA

12.15 m

Displacement

4410 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8916

Medium

1.1899

High

1.3976

Triple Offshore

Low

1.1582

Medium

1.4889

High

1.7326

Boat Specifications

Dimensions

Length overall: 12.15 m
Beam: 4.2 m
Draft: 2.95 m
Displacement: 4410 kg
Crew weight: 803 kg
Wetted surface: 30.13 m²

Sails

Mainsail: 59.61 m²
Genoa: 41.29 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 179.35 m²

Design

Type: KER 40
Builder: McConaughy Yachts
Designer: Jason Ker
Year built: 2011

Performance data

Polar CSV

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

6,43.2,5.692975,52,6.39,60,6.84,75,7.25,90,7.25,110,7.16,120,6.92,135,6.12,141.9,5.616728,150,5.11
8,42.3,6.895329,52,7.64,60,7.93,75,8.15,90,8.16,110,8.32,120,8.19,135,7.7,143.3,6.99697,150,6.48
10,39.7,7.356386,52,8.14,60,8.45,75,8.86,90,8.86,110,9.04,120,9.17,135,8.51,149,7.688114,150,7.6
12,37.9,7.515042,52,8.38,60,8.78,75,9.48,90,9.72,110,9.61,120,9.9,135,9.45,150,8.44,152,8.256436
14,36.8,7.605547,52,8.55,60,9.01,75,9.81,90,10.5,110,10.26,120,10.52,135,10.63,148.4,9.310496,150,9.16
16,36.1,7.710493,52,8.71,60,9.16,75,10.04,90,10.99,110,10.92,120,11.28,135,11.98,145.7,10.64038,150,10.15
20,36.1,7.797127,52,8.98,60,9.54,75,10.46,90,11.55,110,12.91,120,12.98,135,13.76,141.9,14.295971,150,12.99

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.39	6.84	7.25	7.25	7.16	6.92	6.12	5.11
8	7.64	7.93	8.15	8.16	8.32	8.19	7.7	6.48
10	8.14	8.45	8.86	8.86	9.04	9.17	8.51	7.6
12	8.38	8.78	9.48	9.72	9.61	9.9	9.45	8.44
14	8.55	9.01	9.81	10.5	10.26	10.52	10.63	9.16
16	8.71	9.16	10.04	10.99	10.92	11.28	11.98	10.15
20	8.98	9.54	10.46	11.55	12.91	12.98	13.76	12.99

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	4.15	141.9°	4.42
8	42.3°	5.1	143.3°	5.61
10	39.7°	5.66	149°	6.59
12	37.9°	5.93	152°	7.29
14	36.8°	6.09	148.4°	7.93
16	36.1°	6.23	145.7°	8.79
20	36.1°	6.3	141.9°	11.25

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°	6.39	7.64	8.14	8.38	8.55	8.71	8.98
60°	6.84	7.93	8.45	8.78	9.01	9.16	9.54
75°	7.25	8.15	8.86	9.48	9.81	10.04	10.46
90°	7.25	8.16	8.86	9.72	10.50	10.99	11.55
110°	7.16	8.32	9.04	9.61	10.26	10.92	12.91
120°	6.92	8.19	9.17	9.90	10.52	11.28	12.98
135°	6.12	7.70	8.51	9.45	10.63	11.98	13.76
150°	5.11	6.48	7.60	8.44	9.16	10.15	12.99