ARIADNI II: ORC Rating

GPH

751

OSN

727.4

LOA

9.1 m

Displacement

4499 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5317

Medium

0.7251

High

0.8429

Triple Offshore

Low

0.6868

Medium

0.9077

High

1.0228

Boat Specifications

Dimensions

Length overall: 9.1 m
Beam: 3.24 m
Draft: 1.67 m
Displacement: 4499 kg
Crew weight: 474 kg
Wetted surface: 21.37 m²

Sails

Mainsail: 20.57 m²
Genoa: 29.4 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 66.78 m²

Design

Type: DISCOVERY 3000
Builder: DROMOR
Designer: ED DUBOIS
Year built: 1987
Stability index: 110.8

Performance data

Polar CSV

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

6,45.4,3.816832,52,4.18,60,4.44,75,4.6,90,4.64,110,4.74,120,4.59,135,4.17,145.2,3.763019,150,3.57
8,43.5,4.549375,52,5.03,60,5.29,75,5.46,90,5.62,110,5.75,120,5.61,135,5.19,146.2,4.717296,150,4.53
10,42.1,5.054073,52,5.62,60,5.85,75,6.03,90,6.24,110,6.36,120,6.29,135,5.98,146,5.53654,150,5.31
12,41.2,5.42254,52,6,60,6.19,75,6.36,90,6.56,110,6.72,120,6.68,135,6.46,146.9,6.052151,150,5.86
14,40.6,5.663325,52,6.22,60,6.4,75,6.57,90,6.74,110,6.99,120,6.98,135,6.8,150,6.22,169.4,5.493749
16,40.2,5.747608,52,6.33,60,6.52,75,6.73,90,6.83,110,7.22,120,7.26,135,7.09,150,6.52,173,5.944308
20,40.2,5.786885,52,6.39,60,6.6,75,6.91,90,7.1,110,7.59,120,7.82,135,7.67,150,6.97,177.2,6.557829

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.18	4.44	4.6	4.64	4.74	4.59	4.17	3.57
8	5.03	5.29	5.46	5.62	5.75	5.61	5.19	4.53
10	5.62	5.85	6.03	6.24	6.36	6.29	5.98	5.31
12	6	6.19	6.36	6.56	6.72	6.68	6.46	5.86
14	6.22	6.4	6.57	6.74	6.99	6.98	6.8	6.22
16	6.33	6.52	6.73	6.83	7.22	7.26	7.09	6.52
20	6.39	6.6	6.91	7.1	7.59	7.82	7.67	6.97

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.4°	2.68	145.2°	3.09
8	43.5°	3.3	146.2°	3.92
10	42.1°	3.75	146°	4.59
12	41.2°	4.08	146.9°	5.07
14	40.6°	4.3	169.4°	5.4
16	40.2°	4.39	173°	5.9
20	40.2°	4.42	177.2°	6.55

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°	4.18	5.03	5.62	6.00	6.22	6.33	6.39
60°	4.44	5.29	5.85	6.19	6.40	6.52	6.60
75°	4.60	5.46	6.03	6.36	6.57	6.73	6.91
90°	4.64	5.62	6.24	6.56	6.74	6.83	7.10
110°	4.74	5.75	6.36	6.72	6.99	7.22	7.59
120°	4.59	5.61	6.29	6.68	6.98	7.26	7.82
135°	4.17	5.19	5.98	6.46	6.80	7.09	7.67
150°	3.57	4.53	5.31	5.86	6.22	6.52	6.97