Roelien: ORC Rating

GPH

647.8

OSN

630

LOA

11.2 m

Displacement

5600 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6932

Medium

0.9466

High

1.1006

Triple Offshore

Low

0.9024

Medium

1.1799

High

1.3279

Boat Specifications

Dimensions

Length overall: 11.2 m
Beam: 3.52 m
Draft: 1.83 m
Displacement: 5600 kg
Crew weight: 621 kg
Wetted surface: 26.95 m²

Sails

Mainsail: 42.26 m²
Genoa: 26.03 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 65 m²

Design

Type: Dehler 37 Cws
Builder: Dehler
Designer: vd Stadt
Year built: 1990

Performance data

Polar CSV

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

6,43.2,4.48579,52,5.05,60,5.37,75,5.64,90,5.58,110,5.49,120,5.27,135,4.68,145.3,4.159855,150,3.95
8,41.9,5.320353,52,5.99,60,6.33,75,6.58,90,6.64,110,6.62,120,6.4,135,5.77,147.7,5.110842,150,4.99
10,41.7,6.040409,52,6.69,60,6.91,75,7.08,90,7.21,110,7.22,120,7.09,135,6.67,147.6,6.028463,150,5.87
12,40.1,6.392814,52,7.03,60,7.2,75,7.37,90,7.55,110,7.59,120,7.49,135,7.2,149,6.661477,150,6.6
14,39.7,6.537566,52,7.17,60,7.37,75,7.6,90,7.8,110,7.98,120,7.87,135,7.56,150,7.06,174.6,6.267817
16,39.5,6.596472,52,7.23,60,7.45,75,7.79,90,7.96,110,8.37,120,8.28,135,7.94,150,7.38,177.5,6.826497
20,39.5,6.700149,52,7.29,60,7.51,75,7.97,90,8.41,110,8.94,120,9.11,135,8.73,150,7.98,178.8,7.511647

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.05	5.37	5.64	5.58	5.49	5.27	4.68	3.95
8	5.99	6.33	6.58	6.64	6.62	6.4	5.77	4.99
10	6.69	6.91	7.08	7.21	7.22	7.09	6.67	5.87
12	7.03	7.2	7.37	7.55	7.59	7.49	7.2	6.6
14	7.17	7.37	7.6	7.8	7.98	7.87	7.56	7.06
16	7.23	7.45	7.79	7.96	8.37	8.28	7.94	7.38
20	7.29	7.51	7.97	8.41	8.94	9.11	8.73	7.98

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	3.27	145.3°	3.42
8	41.9°	3.96	147.7°	4.32
10	41.7°	4.51	147.6°	5.09
12	40.1°	4.89	149°	5.71
14	39.7°	5.03	174.6°	6.24
16	39.5°	5.09	177.5°	6.82
20	39.5°	5.17	178.8°	7.51

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°	5.05	5.99	6.69	7.03	7.17	7.23	7.29
60°	5.37	6.33	6.91	7.20	7.37	7.45	7.51
75°	5.64	6.58	7.08	7.37	7.60	7.79	7.97
90°	5.58	6.64	7.21	7.55	7.80	7.96	8.41
110°	5.49	6.62	7.22	7.59	7.98	8.37	8.94
120°	5.27	6.40	7.09	7.49	7.87	8.28	9.11
135°	4.68	5.77	6.67	7.20	7.56	7.94	8.73
150°	3.95	4.99	5.87	6.60	7.06	7.38	7.98