MARTINI: ORC Rating

GPH

626

OSN

607

LOA

11.97 m

Displacement

8464 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6419

Medium

0.8761

High

1.0092

Triple Offshore

Low

0.8313

Medium

1.0862

High

1.2139

Boat Specifications

Dimensions

Length overall: 11.97 m
Beam: 3.95 m
Draft: 2 m
Displacement: 8464 kg
Crew weight: 350 kg
Wetted surface: 33.69 m²

Sails

Mainsail: 48.26 m²
Genoa: 34.62 m²
Spinnaker: 106.95 m²
Asymmetric spinnaker: 92.99 m²

Design

Type: DEHLER 41 MOD
Builder: DEHLER
Designer: JUDEL/VROLIJK
Year built: 1997

Performance data

Polar CSV

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

6,44.2,4.672828,52,5.14,60,5.44,75,5.66,90,5.74,110,5.73,120,5.52,135,4.95,143.3,4.490034,150,4.16
8,42,5.503638,52,6.12,60,6.4,75,6.62,90,6.83,110,6.87,120,6.7,135,6.15,147.1,5.47867,150,5.31
10,41,6.06856,52,6.77,60,7.02,75,7.22,90,7.44,110,7.53,120,7.44,135,7.06,150,6.3,151.6,6.218392
12,40.6,6.427215,52,7.13,60,7.36,75,7.56,90,7.77,110,7.93,120,7.88,135,7.62,150,7.09,156.3,6.781974
14,40.3,6.569042,52,7.3,60,7.54,75,7.79,90,7.97,110,8.27,120,8.26,135,8.02,150,7.61,165.9,7.062788
16,40.2,6.65099,52,7.38,60,7.63,75,7.94,90,8.1,110,8.56,120,8.62,135,8.4,150,7.99,176.8,7.401541
20,40.4,6.723234,52,7.45,60,7.72,75,8.11,90,8.44,110,9.05,120,9.28,135,9.18,150,8.72,178.6,8.142431
24,41.7,6.723471,52,7.42,60,7.71,75,8.18,90,8.65,110,9.39,120,9.93,135,10.12,150,9.54,178.6,8.832637

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.14	5.44	5.66	5.74	5.73	5.52	4.95	4.16
8	6.12	6.4	6.62	6.83	6.87	6.7	6.15	5.31
10	6.77	7.02	7.22	7.44	7.53	7.44	7.06	6.3
12	7.13	7.36	7.56	7.77	7.93	7.88	7.62	7.09
14	7.3	7.54	7.79	7.97	8.27	8.26	8.02	7.61
16	7.38	7.63	7.94	8.1	8.56	8.62	8.4	7.99
20	7.45	7.72	8.11	8.44	9.05	9.28	9.18	8.72
24	7.42	7.71	8.18	8.65	9.39	9.93	10.12	9.54

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	3.35	143.3°	3.6
8	42°	4.09	147.1°	4.6
10	41°	4.58	151.6°	5.47
12	40.6°	4.88	156.3°	6.21
14	40.3°	5.01	165.9°	6.85
16	40.2°	5.08	176.8°	7.39
20	40.4°	5.12	178.6°	8.14
24	41.7°	5.02	178.6°	8.83

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°	5.14	6.12	6.77	7.13	7.30	7.38	7.45	7.42
60°	5.44	6.40	7.02	7.36	7.54	7.63	7.72	7.71
75°	5.66	6.62	7.22	7.56	7.79	7.94	8.11	8.18
90°	5.74	6.83	7.44	7.77	7.97	8.10	8.44	8.65
110°	5.73	6.87	7.53	7.93	8.27	8.56	9.05	9.39
120°	5.52	6.70	7.44	7.88	8.26	8.62	9.28	9.93
135°	4.95	6.15	7.06	7.62	8.02	8.40	9.18	10.12
150°	4.16	5.31	6.30	7.09	7.61	7.99	8.72	9.54