Yani: ORC Rating

GPH

497.8

OSN

485.8

LOA

15.06 m

Displacement

11936 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8304

Medium

1.0968

High

1.24

Triple Offshore

Low

1.0742

Medium

1.3493

High

1.5052

Boat Specifications

Dimensions

Length overall: 15.06 m
Beam: 4.13 m
Draft: 3.78 m
Displacement: 11936 kg
Crew weight: 1134 kg
Wetted surface: 45.57 m²

Sails

Mainsail: 87.15 m²
Genoa: 60.51 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 237.75 m²

Design

Type: Marten 49
Builder: Marten Marine
Designer: REICHEL / PUGH
Year built: 2004
Stability index: 149.6

Performance data

Polar CSV

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

6,42,6.055347,52,6.77,60,7.11,75,7.46,90,7.69,110,7.48,120,7.11,135,6.23,142.4,5.717606,150,5.23
8,39.9,7.064972,52,7.92,60,8.2,75,8.37,90,8.62,110,8.59,120,8.38,135,7.76,145.1,6.974318,150,6.61
10,38.2,7.571353,52,8.47,60,8.7,75,8.88,90,9.05,110,9.19,120,9.06,135,8.71,148.7,7.888034,150,7.78
12,37,7.800805,52,8.72,60,8.96,75,9.22,90,9.34,110,9.71,120,9.63,135,9.34,150,8.64,151.8,8.521469
14,36.4,7.938936,52,8.86,60,9.11,75,9.47,90,9.63,110,10.17,120,10.21,135,10,150,9.19,151.4,9.077625
16,36,8.022081,52,8.96,60,9.22,75,9.65,90,9.96,110,10.55,120,10.78,135,10.71,148.8,9.820378,150,9.7
20,36,8.145688,52,9.08,60,9.37,75,9.9,90,10.44,110,11.25,120,11.96,135,12.45,144.9,11.746016,150,11.1

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.77	7.11	7.46	7.69	7.48	7.11	6.23	5.23
8	7.92	8.2	8.37	8.62	8.59	8.38	7.76	6.61
10	8.47	8.7	8.88	9.05	9.19	9.06	8.71	7.78
12	8.72	8.96	9.22	9.34	9.71	9.63	9.34	8.64
14	8.86	9.11	9.47	9.63	10.17	10.21	10	9.19
16	8.96	9.22	9.65	9.96	10.55	10.78	10.71	9.7
20	9.08	9.37	9.9	10.44	11.25	11.96	12.45	11.1

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	4.5	142.4°	4.53
8	39.9°	5.42	145.1°	5.72
10	38.2°	5.95	148.7°	6.74
12	37°	6.23	151.8°	7.51
14	36.4°	6.39	151.4°	7.97
16	36°	6.49	148.8°	8.4
20	36°	6.59	144.9°	9.61

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°	6.77	7.92	8.47	8.72	8.86	8.96	9.08
60°	7.11	8.20	8.70	8.96	9.11	9.22	9.37
75°	7.46	8.37	8.88	9.22	9.47	9.65	9.90
90°	7.69	8.62	9.05	9.34	9.63	9.96	10.44
110°	7.48	8.59	9.19	9.71	10.17	10.55	11.25
120°	7.11	8.38	9.06	9.63	10.21	10.78	11.96
135°	6.23	7.76	8.71	9.34	10.00	10.71	12.45
150°	5.23	6.61	7.78	8.64	9.19	9.70	11.10