NAUTILE: ORC Rating

GPH

655.6

OSN

633.9

LOA

11.414 m

Displacement

6545 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6763

Medium

0.9445

High

1.1325

Triple Offshore

Low

0.8757

Medium

1.1708

High

1.3466

Boat Specifications

Dimensions

Length overall: 11.414 m
Beam: 3.78 m
Draft: 1.97 m
Displacement: 6545 kg
Crew weight: 705 kg
Wetted surface: 28.97 m²

Sails

Mainsail: 36.72 m²
Genoa: 34.26 m²
Spinnaker: 80.96 m²
Asymmetric spinnaker: 0 m²

Design

Type: DEHLER 38 (SK)
Builder: DEHLER
Designer: V. DE STADT
Year built: 1986

Performance data

Polar CSV

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

6,43.2,4.334892,52,4.84,60,5.12,75,5.34,90,5.28,110,5.29,120,5.13,135,4.63,146.2,4.043397,150,3.88
8,41.7,5.12966,52,5.77,60,6.07,75,6.32,90,6.36,110,6.45,120,6.26,135,5.7,150,4.93,150.4,4.910897
10,41.5,5.808087,52,6.53,60,6.78,75,6.95,90,7.1,110,7.16,120,7.05,135,6.65,150,5.87,151.2,5.797057
12,40.8,6.367281,52,6.96,60,7.14,75,7.28,90,7.47,110,7.55,120,7.46,135,7.2,150,6.67,155,6.454761
14,39.1,6.584658,52,7.2,60,7.36,75,7.52,90,7.73,110,7.9,120,7.81,135,7.55,150,7.2,171.4,6.563801
16,38.3,6.689804,52,7.33,60,7.51,75,7.73,90,7.88,110,8.26,120,8.19,135,7.89,150,7.53,180,7.04
20,38.2,6.79513,52,7.43,60,7.66,75,8.06,90,8.29,110,8.83,120,8.95,135,8.65,150,8.18,180,7.7

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.84	5.12	5.34	5.28	5.29	5.13	4.63	3.88
8	5.77	6.07	6.32	6.36	6.45	6.26	5.7	4.93
10	6.53	6.78	6.95	7.1	7.16	7.05	6.65	5.87
12	6.96	7.14	7.28	7.47	7.55	7.46	7.2	6.67
14	7.2	7.36	7.52	7.73	7.9	7.81	7.55	7.2
16	7.33	7.51	7.73	7.88	8.26	8.19	7.89	7.53
20	7.43	7.66	8.06	8.29	8.83	8.95	8.65	8.18

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	3.16	146.2°	3.36
8	41.7°	3.83	150.4°	4.27
10	41.5°	4.35	151.2°	5.08
12	40.8°	4.82	155°	5.85
14	39.1°	5.11	171.4°	6.49
16	38.3°	5.25	180°	7.04
20	38.2°	5.34	180°	7.7

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°	4.84	5.77	6.53	6.96	7.20	7.33	7.43
60°	5.12	6.07	6.78	7.14	7.36	7.51	7.66
75°	5.34	6.32	6.95	7.28	7.52	7.73	8.06
90°	5.28	6.36	7.10	7.47	7.73	7.88	8.29
110°	5.29	6.45	7.16	7.55	7.90	8.26	8.83
120°	5.13	6.26	7.05	7.46	7.81	8.19	8.95
135°	4.63	5.70	6.65	7.20	7.55	7.89	8.65
150°	3.88	4.93	5.87	6.67	7.20	7.53	8.18