MARTA III: ORC Rating

GPH

622.8

OSN

603.7

LOA

11.317 m

Displacement

6611 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6428

Medium

0.8794

High

1.0137

Triple Offshore

Low

0.8323

Medium

1.0923

High

1.2282

Boat Specifications

Dimensions

Length overall: 11.317 m
Beam: 3.67 m
Draft: 1.94 m
Displacement: 6611 kg
Crew weight: 450 kg
Wetted surface: 28.64 m²

Sails

Mainsail: 42.74 m²
Genoa: 37.22 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 75.85 m²

Design

Type: Grand Soleil 37 BC
Builder: Cantiere del Pardo
Designer: Botin/Carkeek
Year built: 2005

Performance data

Polar CSV

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

6,44.2,4.798367,52,5.29,60,5.6,75,5.83,90,5.73,110,5.58,120,5.38,135,4.8,143.5,4.366449,150,4.05
8,42.2,5.669511,52,6.31,60,6.58,75,6.78,90,6.72,110,6.75,120,6.55,135,5.98,147.1,5.335748,150,5.18
10,40.6,6.29551,52,6.97,60,7.17,75,7.32,90,7.39,110,7.45,120,7.32,135,6.89,147.9,6.256478,150,6.11
12,39.1,6.623315,52,7.32,60,7.5,75,7.65,90,7.78,110,7.89,120,7.79,135,7.48,148.5,6.94314,150,6.83
14,38.9,6.797361,52,7.49,60,7.69,75,7.9,90,8.05,110,8.28,120,8.21,135,7.9,150,7.31,150.5,7.284378
16,38.7,6.880819,52,7.57,60,7.79,75,8.09,90,8.23,110,8.64,120,8.61,135,8.31,150,7.66,175.2,6.93432
20,39,6.948502,52,7.64,60,7.89,75,8.3,90,8.66,110,9.24,120,9.49,135,9.17,150,8.29,177.4,7.727955
24,40.2,6.96521,52,7.63,60,7.91,75,8.42,90,8.92,110,9.66,120,10.48,135,10.34,150,8.97,177.2,8.369993

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.29	5.6	5.83	5.73	5.58	5.38	4.8	4.05
8	6.31	6.58	6.78	6.72	6.75	6.55	5.98	5.18
10	6.97	7.17	7.32	7.39	7.45	7.32	6.89	6.11
12	7.32	7.5	7.65	7.78	7.89	7.79	7.48	6.83
14	7.49	7.69	7.9	8.05	8.28	8.21	7.9	7.31
16	7.57	7.79	8.09	8.23	8.64	8.61	8.31	7.66
20	7.64	7.89	8.3	8.66	9.24	9.49	9.17	8.29
24	7.63	7.91	8.42	8.92	9.66	10.48	10.34	8.97

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	3.44	143.5°	3.51
8	42.2°	4.2	147.1°	4.48
10	40.6°	4.78	147.9°	5.3
12	39.1°	5.14	148.5°	5.92
14	38.9°	5.29	150.5°	6.34
16	38.7°	5.37	175.2°	6.91
20	39°	5.4	177.4°	7.72
24	40.2°	5.32	177.2°	8.36

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 kt24 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)	Boat speed in 24 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	5.29	6.31	6.97	7.32	7.49	7.57	7.64	7.63
60°	5.60	6.58	7.17	7.50	7.69	7.79	7.89	7.91
75°	5.83	6.78	7.32	7.65	7.90	8.09	8.30	8.42
90°	5.73	6.72	7.39	7.78	8.05	8.23	8.66	8.92
110°	5.58	6.75	7.45	7.89	8.28	8.64	9.24	9.66
120°	5.38	6.55	7.32	7.79	8.21	8.61	9.49	10.48
135°	4.80	5.98	6.89	7.48	7.90	8.31	9.17	10.34
150°	4.05	5.18	6.11	6.83	7.31	7.66	8.29	8.97