KRONOS: ORC Rating

GPH

731.8

OSN

711.5

LOA

9.2 m

Displacement

4517 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6213

Medium

0.8365

High

0.9756

Triple Offshore

Low

0.8004

Medium

1.0428

High

1.1723

Boat Specifications

Dimensions

Length overall: 9.2 m
Beam: 3.17 m
Draft: 1.76 m
Displacement: 4517 kg
Crew weight: 300 kg
Wetted surface: 22.47 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.

6,42.8,3.993295,52,4.48,60,4.73,75,4.92,90,4.87,110,4.78,120,4.62,135,4.18,145.8,3.748123,150,3.57
8,41.3,4.672125,52,5.25,60,5.52,75,5.74,90,5.72,110,5.76,120,5.59,135,5.12,146.7,4.642218,150,4.48
10,41.1,5.241762,52,5.87,60,6.09,75,6.26,90,6.34,110,6.39,120,6.3,135,5.94,145.9,5.446463,150,5.21
12,40.9,5.675703,52,6.23,60,6.39,75,6.53,90,6.66,110,6.72,120,6.66,135,6.44,146.7,6.030098,150,5.82
14,39.9,5.839681,52,6.4,60,6.56,75,6.72,90,6.86,110,7,120,6.94,135,6.74,150,6.23,170.3,5.620352
16,39.4,5.888187,52,6.47,60,6.65,75,6.86,90,6.96,110,7.29,120,7.24,135,7.01,150,6.52,172.4,6.113706
20,39.7,5.900705,52,6.49,60,6.7,75,7.03,90,7.29,110,7.71,120,7.83,135,7.6,150,6.97,175.7,6.668772

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.48	4.73	4.92	4.87	4.78	4.62	4.18	3.57
8	5.25	5.52	5.74	5.72	5.76	5.59	5.12	4.48
10	5.87	6.09	6.26	6.34	6.39	6.3	5.94	5.21
12	6.23	6.39	6.53	6.66	6.72	6.66	6.44	5.82
14	6.4	6.56	6.72	6.86	7	6.94	6.74	6.23
16	6.47	6.65	6.86	6.96	7.29	7.24	7.01	6.52
20	6.49	6.7	7.03	7.29	7.71	7.83	7.6	6.97

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	2.93	145.8°	3.1
8	41.3°	3.51	146.7°	3.88
10	41.1°	3.95	145.9°	4.51
12	40.9°	4.29	146.7°	5.04
14	39.9°	4.48	170.3°	5.54
16	39.4°	4.55	172.4°	6.06
20	39.7°	4.54	175.7°	6.65

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°	4.48	5.25	5.87	6.23	6.40	6.47	6.49
60°	4.73	5.52	6.09	6.39	6.56	6.65	6.70
75°	4.92	5.74	6.26	6.53	6.72	6.86	7.03
90°	4.87	5.72	6.34	6.66	6.86	6.96	7.29
110°	4.78	5.76	6.39	6.72	7.00	7.29	7.71
120°	4.62	5.59	6.30	6.66	6.94	7.24	7.83
135°	4.18	5.12	5.94	6.44	6.74	7.01	7.60
150°	3.57	4.48	5.21	5.82	6.23	6.52	6.97