LAFE: ORC Rating

GPH

693.4

OSN

670.3

LOA

8.75 m

Displacement

3500 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5828

Medium

0.8007

High

0.9239

Triple Offshore

Low

0.7504

Medium

0.9803

High

1.0978

Boat Specifications

Dimensions

Length overall: 8.75 m
Beam: 3.02 m
Draft: 1.6 m
Displacement: 3500 kg
Crew weight: 420 kg
Wetted surface: 19.34 m²

Sails

Mainsail: 25.19 m²
Genoa: 18.72 m²
Spinnaker: 56.38 m²
Asymmetric spinnaker: 0 m²

Design

Type: DEHLER 29
Builder: DEHLER
Designer: JUDEL/VROLIJK
Year built: 1998
Stability index: 112.3

Performance data

Polar CSV

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

6,43.6,4.211707,52,4.66,60,4.91,75,5.05,90,5.09,110,5.12,120,4.95,135,4.44,145.7,3.946262,150,3.76
8,41.4,4.959266,52,5.55,60,5.78,75,5.93,90,6.07,110,6.15,120,6,135,5.5,150,4.81,150.2,4.793922
10,40.2,5.511943,52,6.11,60,6.29,75,6.43,90,6.59,110,6.71,120,6.62,135,6.29,150,5.69,153.2,5.545685
12,39,5.803286,52,6.41,60,6.57,75,6.72,90,6.85,110,7.07,120,7.02,135,6.76,150,6.36,160.1,5.987526
14,38.4,5.920682,52,6.56,60,6.74,75,6.94,90,7.01,110,7.38,120,7.38,135,7.13,150,6.78,173.6,6.248944
16,38.2,5.993458,52,6.63,60,6.82,75,7.1,90,7.23,110,7.64,120,7.72,135,7.51,150,7.13,179,6.641011
20,38.4,6.035523,52,6.69,60,6.91,75,7.28,90,7.6,110,7.96,120,8.34,135,8.31,150,7.84,179,7.311114

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.66	4.91	5.05	5.09	5.12	4.95	4.44	3.76
8	5.55	5.78	5.93	6.07	6.15	6	5.5	4.81
10	6.11	6.29	6.43	6.59	6.71	6.62	6.29	5.69
12	6.41	6.57	6.72	6.85	7.07	7.02	6.76	6.36
14	6.56	6.74	6.94	7.01	7.38	7.38	7.13	6.78
16	6.63	6.82	7.1	7.23	7.64	7.72	7.51	7.13
20	6.69	6.91	7.28	7.6	7.96	8.34	8.31	7.84

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	3.05	145.7°	3.26
8	41.4°	3.72	150.2°	4.16
10	40.2°	4.21	153.2°	4.95
12	39°	4.51	160.1°	5.63
14	38.4°	4.64	173.6°	6.21
16	38.2°	4.71	179°	6.64
20	38.4°	4.73	179°	7.31

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°	4.66	5.55	6.11	6.41	6.56	6.63	6.69
60°	4.91	5.78	6.29	6.57	6.74	6.82	6.91
75°	5.05	5.93	6.43	6.72	6.94	7.10	7.28
90°	5.09	6.07	6.59	6.85	7.01	7.23	7.60
110°	5.12	6.15	6.71	7.07	7.38	7.64	7.96
120°	4.95	6.00	6.62	7.02	7.38	7.72	8.34
135°	4.44	5.50	6.29	6.76	7.13	7.51	8.31
150°	3.76	4.81	5.69	6.36	6.78	7.13	7.84