ARIADNI II: ORC Rating

GPH

787

OSN

758.1

LOA

9.1 m

Displacement

4500 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5537

Medium

0.7893

High

0.9521

Triple Offshore

Low

0.718

Medium

0.9807

High

1.1378

Boat Specifications

Dimensions

Length overall: 9.1 m
Beam: 3.24 m
Draft: 1.67 m
Displacement: 4500 kg
Crew weight: 496 kg
Wetted surface: 21.56 m²

Sails

Mainsail: 20.57 m²
Genoa: 30.6 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 0 m²

Design

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

Performance data

Polar CSV

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

6,44.5,3.743426,52,4.14,60,4.41,75,4.62,90,4.58,110,4.23,120,3.96,135,3.48,150,2.97,167.4,2.674408
8,42.9,4.4366,52,4.94,60,5.23,75,5.48,90,5.44,110,5.13,120,4.87,135,4.41,150,3.87,168.1,3.525772
10,42.6,4.985755,52,5.6,60,5.9,75,6.11,90,6.11,110,5.9,120,5.65,135,5.15,150,4.63,169.4,4.262742
12,42.9,5.528686,52,6.06,60,6.27,75,6.43,90,6.45,110,6.36,120,6.22,135,5.83,150,5.28,170.3,4.910199
14,41.7,5.772542,52,6.3,60,6.47,75,6.64,90,6.7,110,6.64,120,6.54,135,6.29,150,5.89,170.5,5.515644
16,41,5.843307,52,6.4,60,6.59,75,6.81,90,6.93,110,6.88,120,6.79,135,6.57,150,6.3,172.5,6.021515
20,41.3,5.856795,52,6.43,60,6.65,75,7.02,90,7.27,110,7.39,120,7.29,135,7.03,150,6.79,175.7,6.608602

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.14	4.41	4.62	4.58	4.23	3.96	3.48	2.97
8	4.94	5.23	5.48	5.44	5.13	4.87	4.41	3.87
10	5.6	5.9	6.11	6.11	5.9	5.65	5.15	4.63
12	6.06	6.27	6.43	6.45	6.36	6.22	5.83	5.28
14	6.3	6.47	6.64	6.7	6.64	6.54	6.29	5.89
16	6.4	6.59	6.81	6.93	6.88	6.79	6.57	6.3
20	6.43	6.65	7.02	7.27	7.39	7.29	7.03	6.79

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.5°	2.67	167.4°	2.61
8	42.9°	3.25	168.1°	3.45
10	42.6°	3.67	169.4°	4.19
12	42.9°	4.05	170.3°	4.84
14	41.7°	4.31	170.5°	5.44
16	41°	4.41	172.5°	5.97
20	41.3°	4.4	175.7°	6.59

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°	4.14	4.94	5.60	6.06	6.30	6.40	6.43
60°	4.41	5.23	5.90	6.27	6.47	6.59	6.65
75°	4.62	5.48	6.11	6.43	6.64	6.81	7.02
90°	4.58	5.44	6.11	6.45	6.70	6.93	7.27
110°	4.23	5.13	5.90	6.36	6.64	6.88	7.39
120°	3.96	4.87	5.65	6.22	6.54	6.79	7.29
135°	3.48	4.41	5.15	5.83	6.29	6.57	7.03
150°	2.97	3.87	4.63	5.28	5.89	6.30	6.79