ASTERIX: ORC Rating

GPH

814.4

OSN

789.4

LOA

8 m

Displacement

2480 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5447

Medium

0.7528

High

0.9002

Triple Offshore

Low

0.7064

Medium

0.9417

High

1.0811

Boat Specifications

Dimensions

Length overall: 8 m
Beam: 2.47 m
Draft: 1.33 m
Displacement: 2480 kg
Crew weight: 280 kg
Wetted surface: 14.1 m²

Sails

Mainsail: 14 m²
Genoa: 15.69 m²
Spinnaker: 32.76 m²
Asymmetric spinnaker: 0 m²

Design

Type: DELANTA 78 st.ext.
Builder: MESCHEDE-FREIENOHL
Designer: VAN DE STADT
Year built: 1982

Performance data

Polar CSV

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

6,45.4,3.489268,52,3.83,60,4.09,75,4.28,90,4.3,110,4.37,120,4.25,135,3.77,149,3.301573,150,3.27
8,43.9,4.107967,52,4.55,60,4.83,75,5.07,90,5.22,110,5.32,120,5.17,135,4.68,150,4.14,153.7,4.015677
10,43.5,4.563161,52,5.09,60,5.4,75,5.63,90,5.84,110,5.91,120,5.83,135,5.52,150,4.93,155.5,4.703497
12,43.6,5.012622,52,5.52,60,5.75,75,5.93,90,6.15,110,6.22,120,6.16,135,5.97,150,5.61,169.3,5.03759
14,42.5,5.303296,52,5.78,60,5.96,75,6.12,90,6.35,110,6.49,120,6.43,135,6.25,150,6,180,5.54
16,42.1,5.444921,52,5.92,60,6.09,75,6.28,90,6.47,110,6.76,120,6.71,135,6.51,150,6.25,180,5.93
20,42.9,5.501384,52,5.96,60,6.17,75,6.51,90,6.71,110,7.18,120,7.25,135,7.08,150,6.76,180,6.43

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.83	4.09	4.28	4.3	4.37	4.25	3.77	3.27
8	4.55	4.83	5.07	5.22	5.32	5.17	4.68	4.14
10	5.09	5.4	5.63	5.84	5.91	5.83	5.52	4.93
12	5.52	5.75	5.93	6.15	6.22	6.16	5.97	5.61
14	5.78	5.96	6.12	6.35	6.49	6.43	6.25	6
16	5.92	6.09	6.28	6.47	6.76	6.71	6.51	6.25
20	5.96	6.17	6.51	6.71	7.18	7.25	7.08	6.76

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.4°	2.45	149°	2.83
8	43.9°	2.96	153.7°	3.6
10	43.5°	3.31	155.5°	4.28
12	43.6°	3.63	169.3°	4.95
14	42.5°	3.91	180°	5.54
16	42.1°	4.04	180°	5.93
20	42.9°	4.03	180°	6.43

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°	3.83	4.55	5.09	5.52	5.78	5.92	5.96
60°	4.09	4.83	5.40	5.75	5.96	6.09	6.17
75°	4.28	5.07	5.63	5.93	6.12	6.28	6.51
90°	4.30	5.22	5.84	6.15	6.35	6.47	6.71
110°	4.37	5.32	5.91	6.22	6.49	6.76	7.18
120°	4.25	5.17	5.83	6.16	6.43	6.71	7.25
135°	3.77	4.68	5.52	5.97	6.25	6.51	7.08
150°	3.27	4.14	4.93	5.61	6.00	6.25	6.76