Flyer: ORC Rating

GPH

607.5

OSN

591.2

LOA

11.785 m

Displacement

7966 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6667

Medium

0.8979

High

1.0173

Triple Offshore

Low

0.863

Medium

1.116

High

1.238

Boat Specifications

Dimensions

Length overall: 11.785 m
Beam: 3.79 m
Draft: 1.97 m
Displacement: 7966 kg
Crew weight: 700 kg
Wetted surface: 33.03 m²

Sails

Mainsail: 47.18 m²
Genoa: 47.35 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 121.13 m²

Design

Type: DEHLER 39
Builder: DEHLER
Designer: JUDEL/VROLIJK
Year built: 1998
Stability index: 123.6

Performance data

Polar CSV

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

6,44.2,4.840213,52,5.35,60,5.69,75,5.98,90,5.92,110,5.87,120,5.71,135,5.15,144.2,4.672875,150,4.37
8,42.4,5.687548,52,6.36,60,6.71,75,6.97,90,6.95,110,7.09,120,6.94,135,6.37,147.8,5.637011,150,5.5
10,41.8,6.385182,52,7.07,60,7.31,75,7.48,90,7.58,110,7.71,120,7.63,135,7.3,147.8,6.64151,150,6.49
12,41.1,6.728034,52,7.4,60,7.6,75,7.77,90,7.84,110,8.1,120,8.04,135,7.79,149.6,7.257856,150,7.23
14,40.2,6.834285,52,7.52,60,7.74,75,7.99,90,8.08,110,8.47,120,8.48,135,8.18,150,7.63,151.6,7.525733
16,39.9,6.882482,52,7.58,60,7.81,75,8.14,90,8.34,110,8.74,120,8.94,135,8.63,150,7.92,172.7,7.168101
20,39.9,6.921587,52,7.61,60,7.86,75,8.28,90,8.76,110,9.16,120,9.63,135,9.64,150,8.53,177.2,7.869395

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.35	5.69	5.98	5.92	5.87	5.71	5.15	4.37
8	6.36	6.71	6.97	6.95	7.09	6.94	6.37	5.5
10	7.07	7.31	7.48	7.58	7.71	7.63	7.3	6.49
12	7.4	7.6	7.77	7.84	8.1	8.04	7.79	7.23
14	7.52	7.74	7.99	8.08	8.47	8.48	8.18	7.63
16	7.58	7.81	8.14	8.34	8.74	8.94	8.63	7.92
20	7.61	7.86	8.28	8.76	9.16	9.63	9.64	8.53

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	3.47	144.2°	3.79
8	42.4°	4.2	147.8°	4.77
10	41.8°	4.76	147.8°	5.62
12	41.1°	5.07	149.6°	6.26
14	40.2°	5.22	151.6°	6.62
16	39.9°	5.28	172.7°	7.11
20	39.9°	5.31	177.2°	7.86

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°	5.35	6.36	7.07	7.40	7.52	7.58	7.61
60°	5.69	6.71	7.31	7.60	7.74	7.81	7.86
75°	5.98	6.97	7.48	7.77	7.99	8.14	8.28
90°	5.92	6.95	7.58	7.84	8.08	8.34	8.76
110°	5.87	7.09	7.71	8.10	8.47	8.74	9.16
120°	5.71	6.94	7.63	8.04	8.48	8.94	9.63
135°	5.15	6.37	7.30	7.79	8.18	8.63	9.64
150°	4.37	5.50	6.49	7.23	7.63	7.92	8.53