ZUCCA: ORC Rating

GPH

641

OSN

625.4

LOA

6.5 m

Displacement

802 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6795

Medium

0.829

High

0.985

Triple Offshore

Low

0.8504

Medium

1.026

High

1.2028

Boat Specifications

Dimensions

Length overall: 6.5 m
Beam: 3 m
Draft: 1.58 m
Displacement: 802 kg
Crew weight: 320 kg
Wetted surface: 10.17 m²

Sails

Mainsail: 26.82 m²
Genoa: 11.45 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 68.07 m²

Design

Type: Naus 6.5
Builder: Disegno Contrario
Designer: Disegno Contrario
Year built: 2001

Performance data

Polar CSV

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

6,41.2,4.718141,52,5.31,60,5.51,75,5.64,90,5.67,110,5.76,120,5.69,135,5.34,145,4.870891,150,4.6
8,39,5.340052,52,5.85,60,6,75,6.14,90,6.22,110,6.55,120,6.45,135,6.03,150,5.57,152,5.458988
10,36.4,5.478984,52,6.16,60,6.41,75,6.67,90,6.68,110,7.1,120,7.29,135,6.81,150,6.07,152,5.968644
12,36,5.512863,52,6.27,60,6.55,75,7.02,90,7.29,110,7.51,120,7.94,135,7.67,148.1,6.890689,150,6.75
14,36.4,5.565952,52,6.32,60,6.62,75,7.18,90,7.83,110,8.06,120,8.48,135,9.04,143.8,8.079703,150,7.53
16,36.9,5.652228,52,6.45,60,6.76,75,7.27,90,8.08,110,8.76,120,9.56,135,11.25,139.1,10.994194,150,9.59
20,37.9,5.690141,52,6.49,60,6.87,75,7.64,90,8.5,110,10.76,120,11.8,135,12.93,146.3,13.822878,150,13.27

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.31	5.51	5.64	5.67	5.76	5.69	5.34	4.6
8	5.85	6	6.14	6.22	6.55	6.45	6.03	5.57
10	6.16	6.41	6.67	6.68	7.1	7.29	6.81	6.07
12	6.27	6.55	7.02	7.29	7.51	7.94	7.67	6.75
14	6.32	6.62	7.18	7.83	8.06	8.48	9.04	7.53
16	6.45	6.76	7.27	8.08	8.76	9.56	11.25	9.59
20	6.49	6.87	7.64	8.5	10.76	11.8	12.93	13.27

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.2°	3.55	145°	3.99
8	39°	4.15	152°	4.82
10	36.4°	4.41	152°	5.27
12	36°	4.46	148.1°	5.85
14	36.4°	4.48	143.8°	6.52
16	36.9°	4.52	139.1°	8.31
20	37.9°	4.49	146.3°	11.5

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°	5.31	5.85	6.16	6.27	6.32	6.45	6.49
60°	5.51	6.00	6.41	6.55	6.62	6.76	6.87
75°	5.64	6.14	6.67	7.02	7.18	7.27	7.64
90°	5.67	6.22	6.68	7.29	7.83	8.08	8.50
110°	5.76	6.55	7.10	7.51	8.06	8.76	10.76
120°	5.69	6.45	7.29	7.94	8.48	9.56	11.80
135°	5.34	6.03	6.81	7.67	9.04	11.25	12.93
150°	4.60	5.57	6.07	6.75	7.53	9.59	13.27