KRONOS: ORC Rating

GPH

748.8

OSN

723.3

LOA

9.2 m

Displacement

4517 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5295

Medium

0.7312

High

0.8574

Triple Offshore

Low

0.6825

Medium

0.9132

High

1.0353

Boat Specifications

Dimensions

Length overall: 9.2 m
Beam: 3.17 m
Draft: 1.76 m
Displacement: 4517 kg
Crew weight: 400 kg
Wetted surface: 22.33 m²

Sails

Mainsail: 19.66 m²
Genoa: 31.93 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 54.21 m²

Design

Type: ATTALIA 32
Builder: JEANNEAU
Designer: JOUBERT & NIVELT
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.

6,44.4,3.904978,52,4.3,60,4.54,75,4.67,90,4.56,110,4.56,120,4.39,135,3.95,144.4,3.591191,150,3.37
8,42.4,4.658372,52,5.16,60,5.39,75,5.55,90,5.51,110,5.59,120,5.43,135,4.99,145.2,4.566771,150,4.33
10,41,5.180801,52,5.76,60,5.96,75,6.13,90,6.21,110,6.29,120,6.19,135,5.82,145.2,5.3827,150,5.1
12,40.1,5.556126,52,6.14,60,6.31,75,6.46,90,6.59,110,6.69,120,6.62,135,6.38,145.8,5.972816,150,5.71
14,39.4,5.771718,52,6.35,60,6.51,75,6.67,90,6.81,110,6.98,120,6.94,135,6.73,150,6.11,170.3,5.427596
16,39,5.841888,52,6.45,60,6.62,75,6.83,90,6.95,110,7.24,120,7.22,135,7.02,150,6.45,171.9,5.939252
20,39.1,5.863051,52,6.48,60,6.68,75,7.01,90,7.22,110,7.67,120,7.76,135,7.57,150,6.93,174.9,6.596114
24,40.3,5.821666,52,6.45,60,6.69,75,7.07,90,7.41,110,7.91,120,8.27,135,8.12,150,7.37,175.4,7.042685

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.3	4.54	4.67	4.56	4.56	4.39	3.95	3.37
8	5.16	5.39	5.55	5.51	5.59	5.43	4.99	4.33
10	5.76	5.96	6.13	6.21	6.29	6.19	5.82	5.1
12	6.14	6.31	6.46	6.59	6.69	6.62	6.38	5.71
14	6.35	6.51	6.67	6.81	6.98	6.94	6.73	6.11
16	6.45	6.62	6.83	6.95	7.24	7.22	7.02	6.45
20	6.48	6.68	7.01	7.22	7.67	7.76	7.57	6.93
24	6.45	6.69	7.07	7.41	7.91	8.27	8.12	7.37

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.4°	2.79	144.4°	2.92
8	42.4°	3.44	145.2°	3.75
10	41°	3.91	145.2°	4.42
12	40.1°	4.25	145.8°	4.94
14	39.4°	4.46	170.3°	5.35
16	39°	4.54	171.9°	5.88
20	39.1°	4.55	174.9°	6.57
24	40.3°	4.44	175.4°	7.02

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 kt24 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)	Boat speed in 24 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	4.30	5.16	5.76	6.14	6.35	6.45	6.48	6.45
60°	4.54	5.39	5.96	6.31	6.51	6.62	6.68	6.69
75°	4.67	5.55	6.13	6.46	6.67	6.83	7.01	7.07
90°	4.56	5.51	6.21	6.59	6.81	6.95	7.22	7.41
110°	4.56	5.59	6.29	6.69	6.98	7.24	7.67	7.91
120°	4.39	5.43	6.19	6.62	6.94	7.22	7.76	8.27
135°	3.95	4.99	5.82	6.38	6.73	7.02	7.57	8.12
150°	3.37	4.33	5.10	5.71	6.11	6.45	6.93	7.37