NUBA II: ORC Rating

GPH

567.3

OSN

551.3

LOA

13.295 m

Displacement

7140 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8045

Medium

1.0913

High

1.2611

Triple Offshore

Low

1.0385

Medium

1.3426

High

1.5097

Boat Specifications

Dimensions

Length overall: 13.295 m
Beam: 4.19 m
Draft: 2.63 m
Displacement: 7140 kg
Crew weight: 750 kg
Wetted surface: 32.38 m²

Sails

Mainsail: 57.26 m²
Genoa: 53.86 m²
Spinnaker: 121.64 m²
Asymmetric spinnaker: 0 m²

Design

Type: PROTOTIPO TWO TON
Builder: BIANCA
Designer: JOUBERT/NIVELT
Year built: 1985

Performance data

Polar CSV

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

6,42,5.261424,52,5.91,60,6.23,75,6.48,90,6.4,110,6.02,120,5.86,135,5.29,141.3,4.945989,150,4.46
8,41,6.280562,52,7.05,60,7.32,75,7.49,90,7.46,110,7.34,120,7.18,135,6.56,147.9,5.713463,150,5.59
10,39.4,6.88465,52,7.62,60,7.8,75,7.96,90,7.98,110,8.03,120,7.93,135,7.54,148.5,6.767216,150,6.66
12,38.1,7.116217,52,7.85,60,8.06,75,8.29,90,8.36,110,8.51,120,8.45,135,8.1,150,7.52,154.8,7.272108
14,37.4,7.225446,52,7.97,60,8.21,75,8.55,90,8.71,110,8.94,120,8.96,135,8.6,150,8.06,165.5,7.45754
16,36.9,7.277869,52,8.05,60,8.31,75,8.72,90,9.01,110,9.21,120,9.43,135,9.12,150,8.52,180,7.8
20,36.6,7.349118,52,8.1,60,8.4,75,8.9,90,9.4,110,9.69,120,10.15,135,10.28,150,9.5,180,8.69

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.91	6.23	6.48	6.4	6.02	5.86	5.29	4.46
8	7.05	7.32	7.49	7.46	7.34	7.18	6.56	5.59
10	7.62	7.8	7.96	7.98	8.03	7.93	7.54	6.66
12	7.85	8.06	8.29	8.36	8.51	8.45	8.1	7.52
14	7.97	8.21	8.55	8.71	8.94	8.96	8.6	8.06
16	8.05	8.31	8.72	9.01	9.21	9.43	9.12	8.52
20	8.1	8.4	8.9	9.4	9.69	10.15	10.28	9.5

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.91	141.3°	3.86
8	41°	4.74	147.9°	4.84
10	39.4°	5.32	148.5°	5.77
12	38.1°	5.6	154.8°	6.58
14	37.4°	5.74	165.5°	7.22
16	36.9°	5.82	180°	7.8
20	36.6°	5.9	180°	8.69

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°	5.91	7.05	7.62	7.85	7.97	8.05	8.10
60°	6.23	7.32	7.80	8.06	8.21	8.31	8.40
75°	6.48	7.49	7.96	8.29	8.55	8.72	8.90
90°	6.40	7.46	7.98	8.36	8.71	9.01	9.40
110°	6.02	7.34	8.03	8.51	8.94	9.21	9.69
120°	5.86	7.18	7.93	8.45	8.96	9.43	10.15
135°	5.29	6.56	7.54	8.10	8.60	9.12	10.28
150°	4.46	5.59	6.66	7.52	8.06	8.52	9.50