Boreas: ORC Rating

GPH

628

OSN

612.9

LOA

9.99 m

Displacement

3760 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6579

Medium

0.8727

High

0.9869

Triple Offshore

Low

0.8498

Medium

1.0725

High

1.1839

Boat Specifications

Dimensions

Length overall: 9.99 m
Beam: 2.98 m
Draft: 2 m
Displacement: 3760 kg
Crew weight: 450 kg
Wetted surface: 22.17 m²

Sails

Mainsail: 35.69 m²
Genoa: 28.22 m²
Spinnaker: 63.12 m²
Asymmetric spinnaker: 0 m²

Design

Type: DEHLER 33 COMP
Builder: DEHLER
Designer: JUDEL/VROLIJK
Year built: 1995

Performance data

Polar CSV

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

6,42,4.87119,52,5.46,60,5.74,75,5.98,90,5.92,110,5.66,120,5.47,135,4.89,144,4.36332,150,4.08
8,40.5,5.707478,52,6.42,60,6.65,75,6.8,90,6.79,110,6.76,120,6.61,135,6.03,149,5.214851,150,5.16
10,39.8,6.156581,52,6.83,60,7.02,75,7.18,90,7.2,110,7.29,120,7.2,135,6.86,150,6.13,151,6.07121
12,38.6,6.257034,52,6.95,60,7.15,75,7.4,90,7.5,110,7.69,120,7.63,135,7.32,150,6.88,158,6.535921
14,38.4,6.316245,52,7.01,60,7.21,75,7.52,90,7.77,110,8.01,120,8.11,135,7.74,150,7.31,180,6.7
16,38.4,6.329005,52,7.04,60,7.24,75,7.59,90,7.99,110,8.25,120,8.57,135,8.25,150,7.71,180,7.17
20,39,6.433798,52,7.11,60,7.33,75,7.64,90,8.18,110,8.65,120,9.14,135,9.46,150,8.69,180,7.97

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.46	5.74	5.98	5.92	5.66	5.47	4.89	4.08
8	6.42	6.65	6.8	6.79	6.76	6.61	6.03	5.16
10	6.83	7.02	7.18	7.2	7.29	7.2	6.86	6.13
12	6.95	7.15	7.4	7.5	7.69	7.63	7.32	6.88
14	7.01	7.21	7.52	7.77	8.01	8.11	7.74	7.31
16	7.04	7.24	7.59	7.99	8.25	8.57	8.25	7.71
20	7.11	7.33	7.64	8.18	8.65	9.14	9.46	8.69

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.62	144°	3.53
8	40.5°	4.34	149°	4.47
10	39.8°	4.73	151°	5.31
12	38.6°	4.89	158°	6.06
14	38.4°	4.95	180°	6.7
16	38.4°	4.96	180°	7.17
20	39°	5	180°	7.97

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°	5.46	6.42	6.83	6.95	7.01	7.04	7.11
60°	5.74	6.65	7.02	7.15	7.21	7.24	7.33
75°	5.98	6.80	7.18	7.40	7.52	7.59	7.64
90°	5.92	6.79	7.20	7.50	7.77	7.99	8.18
110°	5.66	6.76	7.29	7.69	8.01	8.25	8.65
120°	5.47	6.61	7.20	7.63	8.11	8.57	9.14
135°	4.89	6.03	6.86	7.32	7.74	8.25	9.46
150°	4.08	5.16	6.13	6.88	7.31	7.71	8.69