ASTERIX: ORC Rating

GPH

821.4

OSN

793.7

LOA

8.17 m

Displacement

2402 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.4771

Medium

0.6665

High

0.7912

Triple Offshore

Low

0.6196

Medium

0.8326

High

0.9518

Boat Specifications

Dimensions

Length overall: 8.17 m
Beam: 2.47 m
Draft: 1.32 m
Displacement: 2402 kg
Crew weight: 250 kg
Wetted surface: 15.07 m²

Sails

Mainsail: 14.61 m²
Genoa: 15.39 m²
Spinnaker: 32.28 m²
Asymmetric spinnaker: 0 m²

Design

Type: DELANTA 78 mod
Builder: MESCHEDE-FREIENOHL
Designer: VAN DE STADT
Year built: 1982
Stability index: 113.3

Performance data

Polar CSV

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

6,45.6,3.430221,52,3.76,60,4.03,75,4.21,90,4.28,110,4.33,120,4.19,135,3.72,148.7,3.265225,150,3.22
8,43.8,4.045665,52,4.5,60,4.78,75,5,90,5.21,110,5.29,120,5.13,135,4.64,150,4.12,153.8,3.989932
10,43.6,4.556929,52,5.07,60,5.38,75,5.59,90,5.83,110,5.88,120,5.8,135,5.47,150,4.9,155.6,4.688785
12,44.1,5.054821,52,5.51,60,5.72,75,5.89,90,6.13,110,6.2,120,6.13,135,5.93,150,5.59,159.2,5.284408
14,42.7,5.279525,52,5.75,60,5.93,75,6.09,90,6.34,110,6.48,120,6.41,135,6.22,150,5.98,173.6,5.544554
16,42.1,5.364056,52,5.86,60,6.05,75,6.25,90,6.44,110,6.76,120,6.71,135,6.51,150,6.25,179,5.900899
20,42.9,5.378525,52,5.88,60,6.11,75,6.47,90,6.7,110,7.16,120,7.28,135,7.12,150,6.8,179,6.420978

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.76	4.03	4.21	4.28	4.33	4.19	3.72	3.22
8	4.5	4.78	5	5.21	5.29	5.13	4.64	4.12
10	5.07	5.38	5.59	5.83	5.88	5.8	5.47	4.9
12	5.51	5.72	5.89	6.13	6.2	6.13	5.93	5.59
14	5.75	5.93	6.09	6.34	6.48	6.41	6.22	5.98
16	5.86	6.05	6.25	6.44	6.76	6.71	6.51	6.25
20	5.88	6.11	6.47	6.7	7.16	7.28	7.12	6.8

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.6°	2.4	148.7°	2.79
8	43.8°	2.92	153.8°	3.58
10	43.6°	3.3	155.6°	4.27
12	44.1°	3.63	159.2°	4.94
14	42.7°	3.88	173.6°	5.51
16	42.1°	3.98	179°	5.9
20	42.9°	3.94	179°	6.42

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°	3.76	4.50	5.07	5.51	5.75	5.86	5.88
60°	4.03	4.78	5.38	5.72	5.93	6.05	6.11
75°	4.21	5.00	5.59	5.89	6.09	6.25	6.47
90°	4.28	5.21	5.83	6.13	6.34	6.44	6.70
110°	4.33	5.29	5.88	6.20	6.48	6.76	7.16
120°	4.19	5.13	5.80	6.13	6.41	6.71	7.28
135°	3.72	4.64	5.47	5.93	6.22	6.51	7.12
150°	3.22	4.12	4.90	5.59	5.98	6.25	6.80