MARIA MARIA: ORC Rating

GPH

616.2

OSN

596.7

LOA

11.97 m

Displacement

7163 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6604

Medium

0.9029

High

1.0431

Triple Offshore

Low

0.8501

Medium

1.1007

High

1.2266

Boat Specifications

Dimensions

Length overall: 11.97 m
Beam: 3.88 m
Draft: 2.17 m
Displacement: 7163 kg
Crew weight: 830 kg
Wetted surface: 30.79 m²

Sails

Mainsail: 40.01 m²
Genoa: 46.74 m²
Spinnaker: 96.53 m²
Asymmetric spinnaker: 0 m²

Design

Type: VOLKER 39.5
Builder: AST. DURILUZ
Designer: NESTOR VOLKER
Year built: 1989
Stability index: 117.8

Performance data

Polar CSV

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

6,42.9,4.955341,52,5.52,60,5.81,75,5.97,90,5.81,110,5.53,120,5.37,135,4.82,144.2,4.32765,150,4.05
8,40.8,5.825666,52,6.5,60,6.73,75,6.86,90,6.79,110,6.73,120,6.56,135,6.02,148.7,5.266491,150,5.2
10,39,6.356592,52,7.02,60,7.18,75,7.3,90,7.29,110,7.36,120,7.28,135,6.92,150,6.19,151.6,6.104711
12,37.8,6.606299,52,7.28,60,7.43,75,7.56,90,7.59,110,7.73,120,7.69,135,7.44,150,6.97,156.8,6.647552
14,37,6.711447,52,7.42,60,7.58,75,7.76,90,7.82,110,8.03,120,8.02,135,7.81,150,7.44,167.6,6.880507
16,36.6,6.788592,52,7.5,60,7.67,75,7.91,90,8.02,110,8.29,120,8.34,135,8.15,150,7.79,177.2,7.248654
20,36.4,6.882896,52,7.58,60,7.77,75,8.09,90,8.36,110,8.68,120,8.95,135,8.88,150,8.45,179,7.921206

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.52	5.81	5.97	5.81	5.53	5.37	4.82	4.05
8	6.5	6.73	6.86	6.79	6.73	6.56	6.02	5.2
10	7.02	7.18	7.3	7.29	7.36	7.28	6.92	6.19
12	7.28	7.43	7.56	7.59	7.73	7.69	7.44	6.97
14	7.42	7.58	7.76	7.82	8.03	8.02	7.81	7.44
16	7.5	7.67	7.91	8.02	8.29	8.34	8.15	7.79
20	7.58	7.77	8.09	8.36	8.68	8.95	8.88	8.45

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	3.63	144.2°	3.51
8	40.8°	4.41	148.7°	4.5
10	39°	4.94	151.6°	5.37
12	37.8°	5.22	156.8°	6.11
14	37°	5.36	167.6°	6.72
16	36.6°	5.45	177.2°	7.24
20	36.4°	5.54	179°	7.92

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°	5.52	6.50	7.02	7.28	7.42	7.50	7.58
60°	5.81	6.73	7.18	7.43	7.58	7.67	7.77
75°	5.97	6.86	7.30	7.56	7.76	7.91	8.09
90°	5.81	6.79	7.29	7.59	7.82	8.02	8.36
110°	5.53	6.73	7.36	7.73	8.03	8.29	8.68
120°	5.37	6.56	7.28	7.69	8.02	8.34	8.95
135°	4.82	6.02	6.92	7.44	7.81	8.15	8.88
150°	4.05	5.20	6.19	6.97	7.44	7.79	8.45