WINDFINDER: ORC Rating

GPH

634.8

OSN

620.6

LOA

10.21 m

Displacement

5458 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6429

Medium

0.8552

High

0.9708

Triple Offshore

Low

0.8398

Medium

1.0609

High

1.1704

Boat Specifications

Dimensions

Length overall: 10.21 m
Beam: 3.25 m
Draft: 1.98 m
Displacement: 5458 kg
Crew weight: 618 kg
Wetted surface: 24.97 m²

Sails

Mainsail: 39.36 m²
Genoa: 29.04 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 103.24 m²

Design

Type: Dehler 34
Builder: Dehler Yachts
Designer: Judel/Vroijk
Year built: 2002
Stability index: 130.1

Performance data

Polar CSV

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

6,44.7,4.74114,52,5.23,60,5.62,75,6.07,90,6.17,110,5.72,120,5.55,135,4.94,145.1,4.450395,150,4.22
8,43.2,5.542077,52,6.21,60,6.57,75,6.86,90,6.91,110,6.8,120,6.7,135,6.17,147.8,5.38884,150,5.27
10,41.2,5.927581,52,6.68,60,6.94,75,7.19,90,7.24,110,7.28,120,7.22,135,6.97,147.3,6.45268,150,6.27
12,40,6.279009,52,6.9,60,7.1,75,7.38,90,7.5,110,7.63,120,7.61,135,7.38,150,6.92,150.5,6.882244
14,39.3,6.409592,52,7.03,60,7.21,75,7.5,90,7.74,110,7.91,120,8.02,135,7.77,150,7.22,164.6,6.56574
16,38.8,6.441365,52,7.09,60,7.28,75,7.58,90,7.93,110,8.12,120,8.42,135,8.21,150,7.48,175.4,6.862104
20,38.8,6.531184,52,7.13,60,7.33,75,7.72,90,8.16,110,8.48,120,8.89,135,9.13,150,8.1,177.2,7.468917

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.23	5.62	6.07	6.17	5.72	5.55	4.94	4.22
8	6.21	6.57	6.86	6.91	6.8	6.7	6.17	5.27
10	6.68	6.94	7.19	7.24	7.28	7.22	6.97	6.27
12	6.9	7.1	7.38	7.5	7.63	7.61	7.38	6.92
14	7.03	7.21	7.5	7.74	7.91	8.02	7.77	7.22
16	7.09	7.28	7.58	7.93	8.12	8.42	8.21	7.48
20	7.13	7.33	7.72	8.16	8.48	8.89	9.13	8.1

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.7°	3.37	145.1°	3.65
8	43.2°	4.04	147.8°	4.56
10	41.2°	4.46	147.3°	5.43
12	40°	4.81	150.5°	5.99
14	39.3°	4.96	164.6°	6.33
16	38.8°	5.02	175.4°	6.84
20	38.8°	5.09	177.2°	7.46

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°	5.23	6.21	6.68	6.90	7.03	7.09	7.13
60°	5.62	6.57	6.94	7.10	7.21	7.28	7.33
75°	6.07	6.86	7.19	7.38	7.50	7.58	7.72
90°	6.17	6.91	7.24	7.50	7.74	7.93	8.16
110°	5.72	6.80	7.28	7.63	7.91	8.12	8.48
120°	5.55	6.70	7.22	7.61	8.02	8.42	8.89
135°	4.94	6.17	6.97	7.38	7.77	8.21	9.13
150°	4.22	5.27	6.27	6.92	7.22	7.48	8.10