MARIA MARIA: ORC Rating

GPH

616.5

OSN

596.9

LOA

11.97 m

Displacement

7164 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6594

Medium

0.9025

High

1.0427

Triple Offshore

Low

0.8493

Medium

1.1006

High

1.2264

Boat Specifications

Dimensions

Length overall: 11.97 m
Beam: 3.88 m
Draft: 2.17 m
Displacement: 7164 kg
Crew weight: 830 kg
Wetted surface: 30.9 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

Performance data

Polar CSV

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

6,42.9,4.94169,52,5.52,60,5.8,75,5.97,90,5.81,110,5.54,120,5.37,135,4.82,143.7,4.342818,150,4.05
8,40.9,5.821234,52,6.5,60,6.72,75,6.86,90,6.79,110,6.73,120,6.56,135,6.02,148.2,5.294786,150,5.19
10,39.2,6.37465,52,7.02,60,7.18,75,7.29,90,7.29,110,7.36,120,7.28,135,6.91,150,6.18,150.9,6.134322
12,37.8,6.618954,52,7.28,60,7.43,75,7.56,90,7.59,110,7.73,120,7.69,135,7.43,150,6.96,156.3,6.661843
14,37,6.723968,52,7.42,60,7.58,75,7.75,90,7.82,110,8.03,120,8.02,135,7.8,150,7.43,166.4,6.903569
16,36.8,6.818766,52,7.5,60,7.67,75,7.91,90,8.02,110,8.29,120,8.33,135,8.14,150,7.78,177.2,7.22863
20,36.5,6.891774,52,7.58,60,7.77,75,8.09,90,8.35,110,8.67,120,8.95,135,8.86,150,8.43,179,7.901203
24,36.9,6.915226,52,7.61,60,7.83,75,8.21,90,8.58,110,8.96,120,9.46,135,9.8,150,9.2,178.6,8.522544

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.52	5.8	5.97	5.81	5.54	5.37	4.82	4.05
8	6.5	6.72	6.86	6.79	6.73	6.56	6.02	5.19
10	7.02	7.18	7.29	7.29	7.36	7.28	6.91	6.18
12	7.28	7.43	7.56	7.59	7.73	7.69	7.43	6.96
14	7.42	7.58	7.75	7.82	8.03	8.02	7.8	7.43
16	7.5	7.67	7.91	8.02	8.29	8.33	8.14	7.78
20	7.58	7.77	8.09	8.35	8.67	8.95	8.86	8.43
24	7.61	7.83	8.21	8.58	8.96	9.46	9.8	9.2

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	3.62	143.7°	3.5
8	40.9°	4.4	148.2°	4.5
10	39.2°	4.94	150.9°	5.36
12	37.8°	5.23	156.3°	6.1
14	37°	5.37	166.4°	6.71
16	36.8°	5.46	177.2°	7.22
20	36.5°	5.54	179°	7.9
24	36.9°	5.53	178.6°	8.52

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°	5.52	6.50	7.02	7.28	7.42	7.50	7.58	7.61
60°	5.80	6.72	7.18	7.43	7.58	7.67	7.77	7.83
75°	5.97	6.86	7.29	7.56	7.75	7.91	8.09	8.21
90°	5.81	6.79	7.29	7.59	7.82	8.02	8.35	8.58
110°	5.54	6.73	7.36	7.73	8.03	8.29	8.67	8.96
120°	5.37	6.56	7.28	7.69	8.02	8.33	8.95	9.46
135°	4.82	6.02	6.91	7.43	7.80	8.14	8.86	9.80
150°	4.05	5.19	6.18	6.96	7.43	7.78	8.43	9.20