IOLI: ORC Rating

GPH

687.2

OSN

667.1

LOA

10.112 m

Displacement

4220 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5855

Medium

0.8013

High

0.9251

Triple Offshore

Low

0.7578

Medium

0.9881

High

1.1083

Boat Specifications

Dimensions

Length overall: 10.112 m
Beam: 3.41 m
Draft: 1.75 m
Displacement: 4220 kg
Crew weight: 550 kg
Wetted surface: 22.43 m²

Sails

Mainsail: 28.65 m²
Genoa: 29.44 m²
Spinnaker: 62.81 m²
Asymmetric spinnaker: 53.98 m²

Design

Type: DEHLER 34
Builder: DEHLER
Designer: VAN DE STADT
Year built: 1981

Performance data

Polar CSV

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

6,43.5,4.218511,52,4.72,60,5.02,75,5.25,90,5.19,110,5.14,120,4.98,135,4.51,147,3.958646,150,3.83
8,42.4,4.983375,52,5.59,60,5.91,75,6.15,90,6.17,110,6.22,120,6.07,135,5.53,150,4.84,151,4.790654
10,42,5.597832,52,6.21,60,6.42,75,6.58,90,6.71,110,6.76,120,6.68,135,6.36,150,5.71,153,5.566738
12,40.5,5.944193,52,6.52,60,6.68,75,6.84,90,7.02,110,7.11,120,7.04,135,6.8,150,6.41,159,6.062681
14,39.8,6.065469,52,6.66,60,6.84,75,7.04,90,7.25,110,7.47,120,7.4,135,7.13,150,6.81,180,6.28
16,39.8,6.130549,52,6.72,60,6.92,75,7.22,90,7.4,110,7.8,120,7.77,135,7.5,150,7.12,180,6.71
20,40.9,6.178446,52,6.74,60,6.97,75,7.4,90,7.77,110,8.29,120,8.45,135,8.25,150,7.81,180,7.33

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.72	5.02	5.25	5.19	5.14	4.98	4.51	3.83
8	5.59	5.91	6.15	6.17	6.22	6.07	5.53	4.84
10	6.21	6.42	6.58	6.71	6.76	6.68	6.36	5.71
12	6.52	6.68	6.84	7.02	7.11	7.04	6.8	6.41
14	6.66	6.84	7.04	7.25	7.47	7.4	7.13	6.81
16	6.72	6.92	7.22	7.4	7.8	7.77	7.5	7.12
20	6.74	6.97	7.4	7.77	8.29	8.45	8.25	7.81

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.06	147°	3.32
8	42.4°	3.68	151°	4.19
10	42°	4.16	153°	4.96
12	40.5°	4.52	159°	5.66
14	39.8°	4.66	180°	6.28
16	39.8°	4.71	180°	6.71
20	40.9°	4.67	180°	7.33

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°	4.72	5.59	6.21	6.52	6.66	6.72	6.74
60°	5.02	5.91	6.42	6.68	6.84	6.92	6.97
75°	5.25	6.15	6.58	6.84	7.04	7.22	7.40
90°	5.19	6.17	6.71	7.02	7.25	7.40	7.77
110°	5.14	6.22	6.76	7.11	7.47	7.80	8.29
120°	4.98	6.07	6.68	7.04	7.40	7.77	8.45
135°	4.51	5.53	6.36	6.80	7.13	7.50	8.25
150°	3.83	4.84	5.71	6.41	6.81	7.12	7.81