KRONOS: ORC Rating

GPH

725.9

OSN

703.4

LOA

9.2 m

Displacement

4517 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5588

Medium

0.7553

High

0.8743

Triple Offshore

Low

0.7169

Medium

0.9358

High

1.0494

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: 22.23 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
Stability index: 112.1

Performance data

Polar CSV

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

6,43.5,4.108223,52,4.56,60,4.79,75,4.92,90,4.82,110,4.75,120,4.59,135,4.15,145.2,3.738663,150,3.55
8,41.4,4.825952,52,5.38,60,5.6,75,5.75,90,5.69,110,5.75,120,5.6,135,5.16,146.2,4.705262,150,4.51
10,40.5,5.352404,52,5.93,60,6.1,75,6.24,90,6.3,110,6.38,120,6.29,135,5.96,146.2,5.499501,150,5.28
12,39.3,5.673006,52,6.25,60,6.39,75,6.53,90,6.65,110,6.74,120,6.69,135,6.46,146.9,6.040214,150,5.84
14,38.7,5.84293,52,6.43,60,6.57,75,6.73,90,6.86,110,7.03,120,6.99,135,6.79,150,6.23,170.4,5.567974
16,38.2,5.891658,52,6.51,60,6.68,75,6.88,90,6.99,110,7.28,120,7.27,135,7.08,150,6.53,172.1,6.047393
20,38.2,5.917108,52,6.56,60,6.76,75,7.06,90,7.26,110,7.71,120,7.81,135,7.63,150,6.99,174.8,6.657399

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.56	4.79	4.92	4.82	4.75	4.59	4.15	3.55
8	5.38	5.6	5.75	5.69	5.75	5.6	5.16	4.51
10	5.93	6.1	6.24	6.3	6.38	6.29	5.96	5.28
12	6.25	6.39	6.53	6.65	6.74	6.69	6.46	5.84
14	6.43	6.57	6.73	6.86	7.03	6.99	6.79	6.23
16	6.51	6.68	6.88	6.99	7.28	7.27	7.08	6.53
20	6.56	6.76	7.06	7.26	7.71	7.81	7.63	6.99

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	2.98	145.2°	3.07
8	41.4°	3.62	146.2°	3.91
10	40.5°	4.07	146.2°	4.57
12	39.3°	4.39	146.9°	5.06
14	38.7°	4.56	170.4°	5.49
16	38.2°	4.63	172.1°	5.99
20	38.2°	4.65	174.8°	6.63

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°	4.56	5.38	5.93	6.25	6.43	6.51	6.56
60°	4.79	5.60	6.10	6.39	6.57	6.68	6.76
75°	4.92	5.75	6.24	6.53	6.73	6.88	7.06
90°	4.82	5.69	6.30	6.65	6.86	6.99	7.26
110°	4.75	5.75	6.38	6.74	7.03	7.28	7.71
120°	4.59	5.60	6.29	6.69	6.99	7.27	7.81
135°	4.15	5.16	5.96	6.46	6.79	7.08	7.63
150°	3.55	4.51	5.28	5.84	6.23	6.53	6.99